tag:blogger.com,1999:blog-66466938929462401412024-03-19T11:16:15.877+08:00林宣安老師_創意教具DIYUnknownnoreply@blogger.comBlogger1205125tag:blogger.com,1999:blog-6646693892946240141.post-75383180334318111302024-03-17T18:02:00.002+08:002024-03-18T11:50:46.032+08:00光傳輸的處理電路原理_A型擴大機<div style="text-align: left;">搞懂A型擴大機原理之後</div><div style="text-align: left;">這個<a href="https://l0930984547.blogspot.com/2024/03/blog-post_6.html" target="_blank">光傳輸的發射器</a>電路圖就看得懂了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbddTmMMMqPIe6mt7b6ciHa4_fzFrqEjvWGh7EnPuNc6uglVfxPKPMEHEEfxlm1S96llkXqid9ZUTz-ejS5LcQnr-5bjv1tEMm_Vuq3Yl0bJ6XEqv5K_XSatrerNACX2C9g4gRCl4-3-3pIUnPIZ4S01BFUSjLq3ZDhe2viOM_XWf6p9vj6NJN5kCMC7F7/s3264/IMG_3627.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbddTmMMMqPIe6mt7b6ciHa4_fzFrqEjvWGh7EnPuNc6uglVfxPKPMEHEEfxlm1S96llkXqid9ZUTz-ejS5LcQnr-5bjv1tEMm_Vuq3Yl0bJ6XEqv5K_XSatrerNACX2C9g4gRCl4-3-3pIUnPIZ4S01BFUSjLq3ZDhe2viOM_XWf6p9vj6NJN5kCMC7F7/s320/IMG_3627.JPG" width="320" /></a></div><br /><div style="text-align: left;">我們最後的負載會是IR_LED</div><div style="text-align: left;">因此一定要是直流訊號才行</div><div style="text-align: left;">A型擴大機剛好就符合這樣的特性</div><div style="text-align: left;">要功率還是要音質,就可以調整100K那支電阻的大小</div><div style="text-align: left;">100K是下限,再小下去音質就爛掉了</div><div style="text-align: left;">1M差不多是上限</div><div style="text-align: left;">就看大家如何取捨了</div><div style="text-align: left;">那前面那個8403要幹嘛?</div><div style="text-align: left;">這是D型擴大機,有機會再來說了</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-70095323181482985112024-03-17T17:46:00.001+08:002024-03-17T17:46:26.244+08:00RC電路應用_A型擴大機用電晶體處理一般放大電路很單純<div>但如果要處理音訊就有點麻煩了</div><div>因為一般音訊都是交流訊號</div><div>如果直接將音訊輸入B極</div><div>如以下電路示意</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfGsge2ybEIzGrH-kCWla0mmcQcmAXL54s5iy_sTblZ28CVXykFnCz1op3pdgcBLLynlCaQHPtfZABc8l2-lLuW8MAzPbF6Lm3EjHbvCWUri-TtrcSAd-vH8K5-1zpO6AYpPTa6NSP5tJPCk88wwLIYmlMjW87yMngjzJiYWHPP7BcDC4oyNXKiXuio1Hy/s3264/IMG_3623.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfGsge2ybEIzGrH-kCWla0mmcQcmAXL54s5iy_sTblZ28CVXykFnCz1op3pdgcBLLynlCaQHPtfZABc8l2-lLuW8MAzPbF6Lm3EjHbvCWUri-TtrcSAd-vH8K5-1zpO6AYpPTa6NSP5tJPCk88wwLIYmlMjW87yMngjzJiYWHPP7BcDC4oyNXKiXuio1Hy/s320/IMG_3623.JPG" width="320" /></a></div><br /><div><br /></div><div>會有一半的的聲音不見</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhlkrjoUa9N9mPDCb5CQ6dhF6EbjQ_x05ICJBCfc3EHq5ZsA5qmIkmPgOUO8GHYZB6yNZnwrmaezXJVDAtJ44lXmDxpnJi4nDFIGD5dUkkQ0TlUijwwFuTQJrC1PGybJvAMEBsK2BrSd0FEFuVSwDCkgCOO-RU-zWC_WqALIYVV9UQ5sSUKg9rkWW44Updh/s3264/IMG_3617.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhlkrjoUa9N9mPDCb5CQ6dhF6EbjQ_x05ICJBCfc3EHq5ZsA5qmIkmPgOUO8GHYZB6yNZnwrmaezXJVDAtJ44lXmDxpnJi4nDFIGD5dUkkQ0TlUijwwFuTQJrC1PGybJvAMEBsK2BrSd0FEFuVSwDCkgCOO-RU-zWC_WqALIYVV9UQ5sSUKg9rkWW44Updh/s320/IMG_3617.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDJym9fbPLOq8Buzg6MjZJFP36QA9DDFerj147mUXKGoFUVTrA4_z16gFRKh4ke5iFrKzXGt17mLlc34wP52xEyvdbFjxOogw7CMhG0xMFkPEyyGrolbTybsgsrLHCgg_OaTjU0Kffvg5s077L4ii0DjlG9KQedjZhG-NAmYtIGm_AbnH8Sz0FaFDvtfJd/s3264/IMG_3618.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDJym9fbPLOq8Buzg6MjZJFP36QA9DDFerj147mUXKGoFUVTrA4_z16gFRKh4ke5iFrKzXGt17mLlc34wP52xEyvdbFjxOogw7CMhG0xMFkPEyyGrolbTybsgsrLHCgg_OaTjU0Kffvg5s077L4ii0DjlG9KQedjZhG-NAmYtIGm_AbnH8Sz0FaFDvtfJd/s320/IMG_3618.JPG" width="320" /></a></div><br /><div><br /></div><div>聽起來就像是斷斷續續地感覺</div><div>而且音訊的電壓必須大於0.7V才可以這樣作</div><div>一般音訊很少這麼高,若將音量開到最大</div><div>如上的圖形,橘線是原音訊,電壓約有1.28V</div><div>結果放大後(藍線),有一半的訊號不見了</div><div>而且原本的正弦波因為音量(電流)過大變成方波(電晶體飽和的時間)</div><div>這樣的聲音會失真</div><div>聽起來就像破音的感覺</div><div>因此要放大聲音是不能這麼做的</div><div>必須在進入B極前加上一個電容</div><div>如下電路示意</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-8jsmmBY6kg85np7nAybJXJTmmFN8dM_jMMkh4hyU3JigC6qGMSuPLgXEteaKPlGz8BbQrCXT6CHlcMPI7973PwqFbjGeXVHYB_ROLbqbLYRPzC83m4QgRyLAm1FSayR3dfm7eJJ5XASR4UrYhMFrNjFwKMf7tyZbFMUiumYUwW2v0G3oeyHqAj7JFOMZ/s3264/IMG_3622.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-8jsmmBY6kg85np7nAybJXJTmmFN8dM_jMMkh4hyU3JigC6qGMSuPLgXEteaKPlGz8BbQrCXT6CHlcMPI7973PwqFbjGeXVHYB_ROLbqbLYRPzC83m4QgRyLAm1FSayR3dfm7eJJ5XASR4UrYhMFrNjFwKMf7tyZbFMUiumYUwW2v0G3oeyHqAj7JFOMZ/s320/IMG_3622.JPG" width="320" /></a></div><br /><div><br /></div><div>因為電容有通交隔直的功能</div><div>因此可以將交流訊號暫時存在電容中</div><div>在電壓反向時釋放出來</div><div>就可以把交流訊號拉成直流訊號</div><div>但還是有一個致命的缺點</div><div>那就是訊號會衰弱許多</div><div>如下圖所示</div><div>橘線是原始訊號</div><div>藍線是過電容後的訊號</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJIhwx8PHfQ9ObC6VTW3_LalSCV45XG4bFhMtOlipCyfByjREEIUvGDlAvk9cub6U05U9aeAx6p9KYNfS8aUptjFH-fr-7cREAkbnioUIKSzw3Frhjm6BcRzrKHRHVtuUZZQDKx0qB11jtoR19hubooPUgxxgadMUPC4giAzu9uSusOs3WIAEHHgL1XIIX/s3264/IMG_3625.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJIhwx8PHfQ9ObC6VTW3_LalSCV45XG4bFhMtOlipCyfByjREEIUvGDlAvk9cub6U05U9aeAx6p9KYNfS8aUptjFH-fr-7cREAkbnioUIKSzw3Frhjm6BcRzrKHRHVtuUZZQDKx0qB11jtoR19hubooPUgxxgadMUPC4giAzu9uSusOs3WIAEHHgL1XIIX/s320/IMG_3625.JPG" width="320" /></a></div><br /><div><br /></div><div>不但失真(方波),振幅也變小許多</div><div>所以還是不行...</div><div><br /></div><div>這時就要補上一個電流把振幅拉開才行</div><div>如下電路示意</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCaEUtBv30hEqEp91tzJ8x7G-ptsdWU_r302Qtf7xvAi4vk97PHWrZpAy9S4Oz_Hof9HF46GYG1eXufX22IIPwShS_ury6zFoTQy6lU9mRotqbftlyDynDdmtQWirICLt64KIDHy2tDJ09onkJDdZmr9v_tQvw5hCnfZhf8r0gGpy8Ia6MlHoEVg6SSeC3/s3264/IMG_3626.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCaEUtBv30hEqEp91tzJ8x7G-ptsdWU_r302Qtf7xvAi4vk97PHWrZpAy9S4Oz_Hof9HF46GYG1eXufX22IIPwShS_ury6zFoTQy6lU9mRotqbftlyDynDdmtQWirICLt64KIDHy2tDJ09onkJDdZmr9v_tQvw5hCnfZhf8r0gGpy8Ia6MlHoEVg6SSeC3/s320/IMG_3626.JPG" width="320" /></a></div><br /><div>這個電阻的大小很重要</div><div>因為音訊通常數百到數千赫茲</div><div>若電流補得太多(R較小),圖形還是會像方波</div><div>如下R為100K,音量開到最大</div><div>所以呈現方波</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSNymhEKl7FCUaAdPgCOgN4S0zE5TPe7rtI6PPF07UBUBCp9wikCUKHkWeK0K7La3PY1QOF2tfX6iIX0OjQfv3mSEGSEdY5tEHLbmxEFl_2W4yGKKqrvIc_o2qr_XV6BDqd_JrU2AFCPGwVI4AmuiBzz2eRt_uhMAo0wTN3SppGAYJH2sANCBJ5gSl1Cj-/s3264/IMG_3593.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSNymhEKl7FCUaAdPgCOgN4S0zE5TPe7rtI6PPF07UBUBCp9wikCUKHkWeK0K7La3PY1QOF2tfX6iIX0OjQfv3mSEGSEdY5tEHLbmxEFl_2W4yGKKqrvIc_o2qr_XV6BDqd_JrU2AFCPGwVI4AmuiBzz2eRt_uhMAo0wTN3SppGAYJH2sANCBJ5gSl1Cj-/s320/IMG_3593.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh21M9sSeUQJnrKL-EM7nRm29QtSQ4cVb46WGuJqCdBHI2bWRY5KkxLZR6_mZ_O9fnL6rcIjB610U5OuecvTXaYwolEhVYC4YyeGyRuSpDFzUmnKXDxTYxmrjT4Tlqpj6Cw3JIm8CLVno0CyKIwH6KT7LcLapO9eeO5GXxaW45wBKF9hSgB3nDd55LM4rEp/s3264/IMG_3594.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh21M9sSeUQJnrKL-EM7nRm29QtSQ4cVb46WGuJqCdBHI2bWRY5KkxLZR6_mZ_O9fnL6rcIjB610U5OuecvTXaYwolEhVYC4YyeGyRuSpDFzUmnKXDxTYxmrjT4Tlqpj6Cw3JIm8CLVno0CyKIwH6KT7LcLapO9eeO5GXxaW45wBKF9hSgB3nDd55LM4rEp/s320/IMG_3594.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiX2Iv8o8xYi9ZCTsZHgFhFCSFmm3LX1rC2PN1k-9FlDKWV_5lBYh_KEX2KZ_gDbKml9AQ0AIrs8Qz8FLBimRpBdpq_BVUviNht_dbdQoqCPSF8tNlWAONwB1-W_XEP0TzXRNRWBJgeWsoK6Mpu8P_DvEs8HOHogd_BNR2VMe60mBV_v-QAIk42VI0P0F2i/s3264/IMG_3595.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiX2Iv8o8xYi9ZCTsZHgFhFCSFmm3LX1rC2PN1k-9FlDKWV_5lBYh_KEX2KZ_gDbKml9AQ0AIrs8Qz8FLBimRpBdpq_BVUviNht_dbdQoqCPSF8tNlWAONwB1-W_XEP0TzXRNRWBJgeWsoK6Mpu8P_DvEs8HOHogd_BNR2VMe60mBV_v-QAIk42VI0P0F2i/s320/IMG_3595.JPG" width="320" /></a></div><br /><div>若音量開小一點,就會有漂亮的正弦波了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIoJyzItGV7FThekxkLzXSkCQDKNbdKaCX6YfVaIkMtKiKoHWos5PkUJeb73QgbTaNVAPPjxtgvjcDgsyE6dWjrLCIasm8VgsLYXQpoTJq4faZ9np0GeLrU2NjKbLQkgCrXHnUC1FYq3Bl8eUQrWaGsPmRH7TtoySWLbBRRmVYfh82N_fLutXOYEv1AVRe/s3264/IMG_3602.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIoJyzItGV7FThekxkLzXSkCQDKNbdKaCX6YfVaIkMtKiKoHWos5PkUJeb73QgbTaNVAPPjxtgvjcDgsyE6dWjrLCIasm8VgsLYXQpoTJq4faZ9np0GeLrU2NjKbLQkgCrXHnUC1FYq3Bl8eUQrWaGsPmRH7TtoySWLbBRRmVYfh82N_fLutXOYEv1AVRe/s320/IMG_3602.JPG" width="320" /></a></div><br /><div>如果加大R的阻值(補充電流變小),音量一樣拉到最大</div><div>可以看到平坦(沒聲音)的部分變小,聲音就不會斷斷續續</div><div>R=560K</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEji_Fwco25pHZRpLvNtAduOcd-Wsl3TgUXg4jY44sRRpCwARrg2OM4MRk6EBxb0eY4aL9LsXWbBhSdTBVtQUIjdWOAxaU2RHHteng_xRjQVA3zRD7ifCPl_02Cuyq-ZOU3DlY_eRoXOnfcyIB0z-nRTy8XQcaogpGuyc9MhTZCOrrxVCy_o0DW7O69mQAT2/s3264/IMG_3596.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEji_Fwco25pHZRpLvNtAduOcd-Wsl3TgUXg4jY44sRRpCwARrg2OM4MRk6EBxb0eY4aL9LsXWbBhSdTBVtQUIjdWOAxaU2RHHteng_xRjQVA3zRD7ifCPl_02Cuyq-ZOU3DlY_eRoXOnfcyIB0z-nRTy8XQcaogpGuyc9MhTZCOrrxVCy_o0DW7O69mQAT2/s320/IMG_3596.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3Le4IpAeccDjFQDPj2w_T9lChJl2JJvteTXNwbShhBW6Qavo8wS7rbBiot5Vue3A519WJNpwxMFmswxqSJcnpYuMigbcITlsBuKXoYvgk6bedyZE93t0Mv5OpZ44SrIgdG2IEdFrTc4ezTd_ocORyRSFJT6HZOSckUHtm7wmCfUSHQ04Dj3NQUSZNhTRA/s3264/IMG_3597.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3Le4IpAeccDjFQDPj2w_T9lChJl2JJvteTXNwbShhBW6Qavo8wS7rbBiot5Vue3A519WJNpwxMFmswxqSJcnpYuMigbcITlsBuKXoYvgk6bedyZE93t0Mv5OpZ44SrIgdG2IEdFrTc4ezTd_ocORyRSFJT6HZOSckUHtm7wmCfUSHQ04Dj3NQUSZNhTRA/s320/IMG_3597.JPG" width="320" /></a></div><br /><div><br /></div><div>R=1M</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha2nTgpRavqfAjERfPWtdXz1YK3cMa0DdaWeagx6HJzLhlHhrv0up1eBJh_NJ0wi7RZ1vSKh0Q_2DWWdqK41hcry6fWgEImzzf0XIjvrL-PAOpEQx-3czvBXj9Bebb_Q6WHBBKMUr3JS7pXEoRe9Ta8_LE_4EU1O0G4p_sQpFyRBnnGLYPabT_J1ojkNxG/s3264/IMG_3598.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha2nTgpRavqfAjERfPWtdXz1YK3cMa0DdaWeagx6HJzLhlHhrv0up1eBJh_NJ0wi7RZ1vSKh0Q_2DWWdqK41hcry6fWgEImzzf0XIjvrL-PAOpEQx-3czvBXj9Bebb_Q6WHBBKMUr3JS7pXEoRe9Ta8_LE_4EU1O0G4p_sQpFyRBnnGLYPabT_J1ojkNxG/s320/IMG_3598.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgssJkvHGHaN2jC_KLepP4X_AobYrTXhdE5Bcw6eYIElFIuE4a_cnbG_azwbaYIwFK9kOs88oQh9GF5LO0ee7KXdChsf3Oyx1mPSMkWI9crYAAgUUdp9mY55X6UquyOWCenEozkQ2oGRf_E5H426Z_Xua40VsxdxfcXg8vLhhtNfOj3j1YwVaFQ5jHmv-I8/s3264/IMG_3599.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgssJkvHGHaN2jC_KLepP4X_AobYrTXhdE5Bcw6eYIElFIuE4a_cnbG_azwbaYIwFK9kOs88oQh9GF5LO0ee7KXdChsf3Oyx1mPSMkWI9crYAAgUUdp9mY55X6UquyOWCenEozkQ2oGRf_E5H426Z_Xua40VsxdxfcXg8vLhhtNfOj3j1YwVaFQ5jHmv-I8/s320/IMG_3599.JPG" width="320" /></a></div><br /><div>如果再將輸入音量調小,R=1M</div><div>雖然損失一些振幅(功率)</div><div>但音質就可以不錯了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7uimdyhHQzAHmW6C_UuOYrkEZiR7_orklCHZz36TEu-uEYRBqbWLlCSiZqmp9Uv6Yu_kFX0mU6VqAImSHurOROPjIStW9x61YFSH6bKgV537SWL0q4mi0Q-ErSNX7CKFE4_NEe06wx9ClWki6KX3CbGO0Y2hGMHxG53udf3EtQOIsWqTcufY69FUoYQhf/s3264/IMG_3601.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7uimdyhHQzAHmW6C_UuOYrkEZiR7_orklCHZz36TEu-uEYRBqbWLlCSiZqmp9Uv6Yu_kFX0mU6VqAImSHurOROPjIStW9x61YFSH6bKgV537SWL0q4mi0Q-ErSNX7CKFE4_NEe06wx9ClWki6KX3CbGO0Y2hGMHxG53udf3EtQOIsWqTcufY69FUoYQhf/s320/IMG_3601.JPG" width="320" /></a></div><br /><div>這就是所謂的A型擴大機電路</div><div>搞清楚來龍去脈後</div><div>我們直接輸入一個簡單的音訊來看看</div><div>橘線是原音訊,藍線是放大後的音訊</div><div>若輸入音量過大,部分聲音就會消失,且方波很明顯</div><div>如下圖</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEir7uL88dOWRkyhZ2JFF8rzWeWwCcV9-MVLxraSZQzbjioFPe3EiBIKDSckydatavfOnmSB4mzeTdUrdjLTPipMGtai67wsTpcUc2umMWq-JmFSbEmE5vYT892g0PU4DXvfWldlNBDe0u9naSvq0ofJgdGbgl6DpHXF7iG7L_QU9Y8GA6o_Y4_W_nLIRzC1/s3264/IMG_3609.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEir7uL88dOWRkyhZ2JFF8rzWeWwCcV9-MVLxraSZQzbjioFPe3EiBIKDSckydatavfOnmSB4mzeTdUrdjLTPipMGtai67wsTpcUc2umMWq-JmFSbEmE5vYT892g0PU4DXvfWldlNBDe0u9naSvq0ofJgdGbgl6DpHXF7iG7L_QU9Y8GA6o_Y4_W_nLIRzC1/s320/IMG_3609.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpR8_EDkYKlyf4_YmI1q6e1k-iSIypYZWGP5Ntcp3FjqV0sdyrzeDkhMNfF2-DqK3ytDroz-CFh4pcA9xwV2OBCX4X-du36WzTmw22MkLmc45RmZH-OWID4rX_f4WwXi1h9mdifLp1-1WKfhIyjSI068cad78S_zRG0MHrC3qYpzJOvAcpzceTBQoZAhBs/s3264/IMG_3614.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpR8_EDkYKlyf4_YmI1q6e1k-iSIypYZWGP5Ntcp3FjqV0sdyrzeDkhMNfF2-DqK3ytDroz-CFh4pcA9xwV2OBCX4X-du36WzTmw22MkLmc45RmZH-OWID4rX_f4WwXi1h9mdifLp1-1WKfhIyjSI068cad78S_zRG0MHrC3qYpzJOvAcpzceTBQoZAhBs/s320/IMG_3614.JPG" width="320" /></a></div><br /><div>將輸入音量調小</div><div>整個波形就會很接近原始的樣子</div><div>而且電流放大許多,都是「正」的訊號</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSCYWgpQ5bSHlOTcFXTwuFxPLiuPSYnSO_Zk2Ui20BpBdUlu5v1ZNiqbLASBQNrgdiRSE7EGTcpn9aSDVfEcJWeqJgIgeOS185EvHqjzaVavARnVz86l4DD6vxYUDTVJjgOi0HPBUJwAcwDT4cFFqzGPelKde-TiD2Af1zsF23_lyxeavCwUOAvInqxxHU/s3264/IMG_3615.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSCYWgpQ5bSHlOTcFXTwuFxPLiuPSYnSO_Zk2Ui20BpBdUlu5v1ZNiqbLASBQNrgdiRSE7EGTcpn9aSDVfEcJWeqJgIgeOS185EvHqjzaVavARnVz86l4DD6vxYUDTVJjgOi0HPBUJwAcwDT4cFFqzGPelKde-TiD2Af1zsF23_lyxeavCwUOAvInqxxHU/s320/IMG_3615.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOMcWs3S1Xy69aIzQw71zntvzdbhRWeyG6yQbfkq2o7zYLXLGxpb6529kfD7zpDwgmljIZZZr8TfzD0uQlg0k_llDQ2QiOfK-S5_8MLpOFJdrJCcDqieu6IAnzOrh-jzv2d6YpBA9Ctio3Z-1cmx47DE4ZhDpzVfemewbd1BaD0HtA0SFrTYiSDm6uNomM/s3264/IMG_3620.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOMcWs3S1Xy69aIzQw71zntvzdbhRWeyG6yQbfkq2o7zYLXLGxpb6529kfD7zpDwgmljIZZZr8TfzD0uQlg0k_llDQ2QiOfK-S5_8MLpOFJdrJCcDqieu6IAnzOrh-jzv2d6YpBA9Ctio3Z-1cmx47DE4ZhDpzVfemewbd1BaD0HtA0SFrTYiSDm6uNomM/s320/IMG_3620.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0wiOCN0gy3Tt6XbKlwCV435-E2Qo5tQTzrD3tu429P1CEJhzNUYfEUvhDfVHdXIl4XtumdG9LyE4CO03ZmSgccdUVEupbykkP0IMbeRZKw-JWHiL6eD8XlKZEanqE7rzcPwPQk20LYWYPWcMp6CSYqsHmPelMMwhma1F-aQwVM5_YrdUNe2Ydcd0GOO7h/s3264/IMG_3621.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0wiOCN0gy3Tt6XbKlwCV435-E2Qo5tQTzrD3tu429P1CEJhzNUYfEUvhDfVHdXIl4XtumdG9LyE4CO03ZmSgccdUVEupbykkP0IMbeRZKw-JWHiL6eD8XlKZEanqE7rzcPwPQk20LYWYPWcMp6CSYqsHmPelMMwhma1F-aQwVM5_YrdUNe2Ydcd0GOO7h/s320/IMG_3621.JPG" width="320" /></a></div><br /><div><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-62333156783468060342024-03-10T12:58:00.005+08:002024-03-12T12:39:49.979+08:00組合電路_logic circuit<div style="text-align: left;">單一個電晶體的控制學會之後</div><div style="text-align: left;">接下來就會進入組合電路( combinational circuit)</div><div style="text-align: left;">組合電路的經典當然就是邏輯電路(logic circuit)了</div><div style="text-align: left;">邏輯電路的概念在許多集成電路(IC)中都會出現</div><div style="text-align: left;">也是許多運算的基礎</div><div style="text-align: left;">雖然很煩,但這一關若能完全理解</div><div style="text-align: left;">任督二脈就算打通了</div><div style="text-align: left;">許多老師的解說都會從數學的概念來講</div><div style="text-align: left;">但實際電路如何接?真實世界會發生什麼事?</div><div style="text-align: left;">這些才是我們真正關心的</div><div style="text-align: left;"><br /></div><div style="text-align: left;">and和or簡單,其餘四種才是關鍵</div><div style="text-align: left;">花了好多時間終於完成了六個邏輯電路的連接方式</div><div style="text-align: left;">真的玩過的同好才會知道這張有多珍貴~~</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZAxs5ojBIDT4DkqeSHoa06mh3hNShHcedOyjnJ2B7jIkABnrbRpTsjyiNVvVY5NnNdpcPUxi4yLL3LRgsmsplQBscWculiFts9ouZ-lGvutOIpX-BtUTfD9ydExUf5M8n5DfIHJ4GGoBW8ls_CgBHQ4FqUP0qLrxRKUkmJhFElfNN3aYwjmHTfuZv4o1N/s3264/IMG_3589.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3264" data-original-width="2448" height="459" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZAxs5ojBIDT4DkqeSHoa06mh3hNShHcedOyjnJ2B7jIkABnrbRpTsjyiNVvVY5NnNdpcPUxi4yLL3LRgsmsplQBscWculiFts9ouZ-lGvutOIpX-BtUTfD9ydExUf5M8n5DfIHJ4GGoBW8ls_CgBHQ4FqUP0qLrxRKUkmJhFElfNN3aYwjmHTfuZv4o1N/w344-h459/IMG_3589.JPG" width="344" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">實際輸出我們用LED來表現</div><div style="text-align: left;">但電晶體漏電的問題在組合電路中其實很難避免</div><div style="text-align: left;">因此B極的限流電阻至少要100K以上</div><div style="text-align: left;">受限於用LED來表現,Vcc也只能用3V左右</div><div style="text-align: left;">不然在某些情況下輸出會持續維持高電位</div><div style="text-align: left;">這些都是模擬不會出現的</div><div style="text-align: left;">實驗影片如下</div><div style="text-align: left;">and</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/-PTMQG2D_8Q" width="320" youtube-src-id="-PTMQG2D_8Q"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">Nand</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/Kh9018SCVP4" width="320" youtube-src-id="Kh9018SCVP4"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">or</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/_-sBevlvm4Q" width="320" youtube-src-id="_-sBevlvm4Q"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">Nor</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/v15y4tAVXZc" width="320" youtube-src-id="v15y4tAVXZc"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">Xor</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/kI7EQ_0X5fY" width="320" youtube-src-id="kI7EQ_0X5fY"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">XNor</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/hvftL5_yGaI" width="320" youtube-src-id="hvftL5_yGaI"></iframe></div><br /><div style="text-align: left;"><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-17584219349411075752024-03-06T20:32:00.006+08:002024-03-17T17:53:55.803+08:00高功率光傳輸集成<div style="text-align: left;">這也是為了某場研習量身訂做的版本</div><div style="text-align: left;">發射器從音源進來之後先經過8403的D型擴大機放大訊號</div><div style="text-align: left;">再通過10微法的電容過濾掉大部分的直流訊號後進入電晶體1的B極</div><div style="text-align: left;">進行第一次的訊號放大</div><div style="text-align: left;">然後再利用電晶體2作第二次放大</div><div style="text-align: left;">才能夠推動這個12V大功率的IR照明燈</div><div style="text-align: left;">電晶體1的電源和IR共用,但要經過7805分離</div><div style="text-align: left;">這樣才不會拉走IR的供電</div><div style="text-align: left;">但8403的電源就不能拉IR的12V來用</div><div style="text-align: left;">因為8403的輸出其中一端要和7805共地</div><div style="text-align: left;">但8403的輸出是獨立的</div><div style="text-align: left;">若共用電源就會變成輸出端和電源共地</div><div style="text-align: left;">這樣輸出功率會變得很小</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXhCMERx3RmT_BQuoPPYytOamnA0zcxK6cMZrrMBbJh4_YabpOHe-A6H6D5Twq3TZQTH1pEkrufHIwj_zs_93xz9K6iJAYivGc34x84z1as1nHXzSO_mUfNCWW2FtnP-lnWqFpMM5mLFXMGQrx8BZrUhHjtYM2F06ehycATms-79MrJKu2s5pvm0WOyrU_/s3264/IMG_3582.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXhCMERx3RmT_BQuoPPYytOamnA0zcxK6cMZrrMBbJh4_YabpOHe-A6H6D5Twq3TZQTH1pEkrufHIwj_zs_93xz9K6iJAYivGc34x84z1as1nHXzSO_mUfNCWW2FtnP-lnWqFpMM5mLFXMGQrx8BZrUhHjtYM2F06ehycATms-79MrJKu2s5pvm0WOyrU_/s320/IMG_3582.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjF8G7SwNvaSnQadSiFaUQ_N7Ep2_xrlzo-GRsK_7Vdu4YDSmoH1fikJwLEbtHbA0C2EVUMviz1XzyQOHszO3ooNTaksIXZMbYJLRSQXYgiJsHk9SdIT8eDVr1g8F55EYZvGKbHE65Z_omM0Q6-nij566VefEhY3JggDJMGuFSlw-1bhKr0j0vSxGb3x4Hl/s3264/IMG_3583.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjF8G7SwNvaSnQadSiFaUQ_N7Ep2_xrlzo-GRsK_7Vdu4YDSmoH1fikJwLEbtHbA0C2EVUMviz1XzyQOHszO3ooNTaksIXZMbYJLRSQXYgiJsHk9SdIT8eDVr1g8F55EYZvGKbHE65Z_omM0Q6-nij566VefEhY3JggDJMGuFSlw-1bhKr0j0vSxGb3x4Hl/s320/IMG_3583.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCREPIWy5ZwSMiJhUZbPUlPEu_M9NpuyFR9C4AIYDU4qo688_sywhLEx81QzfZ1WU1ez8UbxGbNE21rIhyTCT5j5Po_vTNCbuNm2PVYXCiXYd_Al09zLSmUhXkMc_VTYWzssYGRBFhuq4IaJN0-eCTEw-yUQNDqq5yZ4q3oU1saeBoSQNz5buNWruJd2uq/s3264/IMG_3584.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCREPIWy5ZwSMiJhUZbPUlPEu_M9NpuyFR9C4AIYDU4qo688_sywhLEx81QzfZ1WU1ez8UbxGbNE21rIhyTCT5j5Po_vTNCbuNm2PVYXCiXYd_Al09zLSmUhXkMc_VTYWzssYGRBFhuq4IaJN0-eCTEw-yUQNDqq5yZ4q3oU1saeBoSQNz5buNWruJd2uq/s320/IMG_3584.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2ulAHlXE8nqKBWN-1gYOb_fF3vBm30Te34CmTOgBNH2E0WniMqomrjvE3OsNkdRck9oXXcK-vpu7AyOrAuq90T7QARAqOkxW6msqgsJHtBpcU4NCGcOKvBW2bIB4qxzdGOtmTSMg8W97dBc8wno-2Te8pj_eEbd0W2OFd0kMt-NuEfRHssBmCkv247eWY/s3264/IMG_3627.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2ulAHlXE8nqKBWN-1gYOb_fF3vBm30Te34CmTOgBNH2E0WniMqomrjvE3OsNkdRck9oXXcK-vpu7AyOrAuq90T7QARAqOkxW6msqgsJHtBpcU4NCGcOKvBW2bIB4qxzdGOtmTSMg8W97dBc8wno-2Te8pj_eEbd0W2OFd0kMt-NuEfRHssBmCkv247eWY/s320/IMG_3627.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><div style="text-align: left;"><br /></div><div style="text-align: left;">發射的部分就比較簡單了</div><div style="text-align: left;">單純用多晶的太陽能板來接收IR訊號</div><div style="text-align: left;">再用LM386放大訊號</div><div style="text-align: left;">要注意的是太陽能接收板輸入LM386時要注意正負極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUg4bOnJ2692Xfmn0ySthAhvWeyWaElxZGHuk3lS4tuvjqZUPqFrwLqk3BinqaTQ1yv3zxJKzRam349AqLrknYLj7LCpmD9Ar3lTl9KaMjbLclEaUp1GmbiZ5zbPir90k-AbMWBxp9Q9OEohCQJoRmbCjY1Xtp3-SA4vEWWEuJgx7xYnZWgVSUBFp9QzIA/s3264/IMG_3585.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUg4bOnJ2692Xfmn0ySthAhvWeyWaElxZGHuk3lS4tuvjqZUPqFrwLqk3BinqaTQ1yv3zxJKzRam349AqLrknYLj7LCpmD9Ar3lTl9KaMjbLclEaUp1GmbiZ5zbPir90k-AbMWBxp9Q9OEohCQJoRmbCjY1Xtp3-SA4vEWWEuJgx7xYnZWgVSUBFp9QzIA/s320/IMG_3585.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHXK1ENVooR4M5mts8TymBDKrLDIOesECDpCesDbNiR9RQlcBJu7-SF2D828qa-4q7kQc55MptqLtU_1nk4GVzUvk30gVmW-GAvfL-ilqYnro_QXwATfcxE3hjrKivl4gmIb-yrtAn_xHwBQOijz0_a7_z2FwXL2FZ2mo3mgOWaDBGb-ZwJM2ZDfsgWw2y/s3264/IMG_3586.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHXK1ENVooR4M5mts8TymBDKrLDIOesECDpCesDbNiR9RQlcBJu7-SF2D828qa-4q7kQc55MptqLtU_1nk4GVzUvk30gVmW-GAvfL-ilqYnro_QXwATfcxE3hjrKivl4gmIb-yrtAn_xHwBQOijz0_a7_z2FwXL2FZ2mo3mgOWaDBGb-ZwJM2ZDfsgWw2y/s320/IMG_3586.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiab3UXybD5d7PP0BxunKUXhMbMrGF-ZFJnakSAhXU7AAhrNl-HAcpRS1ng2c0V-PEHmAfrOZxQxy-nfv3afrZ_k0PdQzUrEsqZ3dzgWHaba9soxXeo9C-5qZSNr2vQ34WKXxTwkuzrWjN6b4Cz_km0Ksx1sjnbsxBYSajkI7jqSHIRHuYe1AB13yszCIB_/s3264/IMG_3588.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiab3UXybD5d7PP0BxunKUXhMbMrGF-ZFJnakSAhXU7AAhrNl-HAcpRS1ng2c0V-PEHmAfrOZxQxy-nfv3afrZ_k0PdQzUrEsqZ3dzgWHaba9soxXeo9C-5qZSNr2vQ34WKXxTwkuzrWjN6b4Cz_km0Ksx1sjnbsxBYSajkI7jqSHIRHuYe1AB13yszCIB_/s320/IMG_3588.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這樣搞完之後,幾乎相隔10公尺都能清楚收到訊號</div><div style="text-align: left;">真的是使命必達啊~~</div><div style="text-align: left;"><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-60283211630502809542024-03-04T22:01:00.002+08:002024-03-04T22:03:00.158+08:00維修手機腳架<div style="text-align: left;">這支手機支架是好夥伴慈玲的委託</div><div style="text-align: left;">她經常在活動的時候默默地架上手機幫我們紀錄</div><div style="text-align: left;">也算跟著她身經百戰了</div><div style="text-align: left;">當然一定要想辦法完成</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFeQ4XwhsAqv2GGoqkSwczC2PKa-KVLF-TCS713fdzKAQxkYiAt3ACNTTpxLamexiMwRj9K7rzbhshGZw7pGee92KCfOeTOLjz-8EIasYopP4217pnuJVI0L6hwyFiALa1yUt9Ij36NC_1uSWLtdyzq7mAcmwN0xdwqts-QvA2BG95rW8uR6tvvLFzIj1g/s3264/IMG_3569.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFeQ4XwhsAqv2GGoqkSwczC2PKa-KVLF-TCS713fdzKAQxkYiAt3ACNTTpxLamexiMwRj9K7rzbhshGZw7pGee92KCfOeTOLjz-8EIasYopP4217pnuJVI0L6hwyFiALa1yUt9Ij36NC_1uSWLtdyzq7mAcmwN0xdwqts-QvA2BG95rW8uR6tvvLFzIj1g/s320/IMG_3569.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwhU0NGDA2b35hjsyp-fCQNnTBVWYFedFSkfx8U_jHpJCGmlWVuYw17OjPMRjAP2JiSx4-0EwDcNzxJVFgPa2y9QyBVn8symCFYhddoEI8NE1n3yCUzWBuCyB6Xogs4S_TPZ1rIwVIhjjMSzz28Oa5QwfJOsBlbgnQPzk850gpMvTUOpCoo-XbDcBZSL0g/s3264/IMG_3570.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwhU0NGDA2b35hjsyp-fCQNnTBVWYFedFSkfx8U_jHpJCGmlWVuYw17OjPMRjAP2JiSx4-0EwDcNzxJVFgPa2y9QyBVn8symCFYhddoEI8NE1n3yCUzWBuCyB6Xogs4S_TPZ1rIwVIhjjMSzz28Oa5QwfJOsBlbgnQPzk850gpMvTUOpCoo-XbDcBZSL0g/s320/IMG_3570.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNS_G3u-8ZpdbE56VxaH1rGwc3Pz_-NMQ94fT6ggJUA16jkvux7ThhzQHE0h-ZgXIQeH8briHzh6tp5N5gK9X-Krn3j1cu6kNrcCGpNxI5ssBGQ0VOZUrX_6jMOKO3XJC_WblLOomy7hHG-eM41RzBSFn074PMpxmO6W_iXBP_jMxkAtmSyXSl3nWjH1Ey/s3264/IMG_3571.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNS_G3u-8ZpdbE56VxaH1rGwc3Pz_-NMQ94fT6ggJUA16jkvux7ThhzQHE0h-ZgXIQeH8briHzh6tp5N5gK9X-Krn3j1cu6kNrcCGpNxI5ssBGQ0VOZUrX_6jMOKO3XJC_WblLOomy7hHG-eM41RzBSFn074PMpxmO6W_iXBP_jMxkAtmSyXSl3nWjH1Ey/s320/IMG_3571.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">支撐手機的塑膠部件斷裂</div><div style="text-align: left;">這是有受力的部分</div><div style="text-align: left;">加上可以著力的面積實在太小</div><div style="text-align: left;">如果只是用黏膠一定無法承受</div><div style="text-align: left;">因此先犧牲一小段橡膠</div><div style="text-align: left;">將斷裂的塑膠打上兩根迴紋針鋼條</div><div style="text-align: left;">另一部分先熔出兩個洞之後才能再用黏膠將兩個部分稍微固定</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjOP_ofCAjqzQJ5yFA9nZUa1cQugUIYm4L90bn55JPRAxS0bgigPw8RRzIYqMf7ddo-CIACffYcorPSXCKDkNBWnaV72dYpty7OJgBXjb-rSBvyQ0whkGwlPK1pyZxtp0U_BICf-gTtuytOqpSbzDvaiGwd1-NoflrT3PvvmUl6G7TlcXIjppMcB0usyE9/s3264/IMG_3573.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjOP_ofCAjqzQJ5yFA9nZUa1cQugUIYm4L90bn55JPRAxS0bgigPw8RRzIYqMf7ddo-CIACffYcorPSXCKDkNBWnaV72dYpty7OJgBXjb-rSBvyQ0whkGwlPK1pyZxtp0U_BICf-gTtuytOqpSbzDvaiGwd1-NoflrT3PvvmUl6G7TlcXIjppMcB0usyE9/s320/IMG_3573.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLYRKHMArMOmJFAiqN4DSnVAA3viuqYiDyLoPvItuKhnJbWDXE-84SaUVkiO-8-ybK9MIYHcsvdJH7F_RJWif1CffaPZ58mm78nox4E2SjGXdsiIW1MIc-3b7lrAz8676xaw6W3Q_sx9yTKzNw9w5sDsm1GmrKLt0MZpI73Dfhqr7lnT77yTMPGtKziFP4/s3264/IMG_3574.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLYRKHMArMOmJFAiqN4DSnVAA3viuqYiDyLoPvItuKhnJbWDXE-84SaUVkiO-8-ybK9MIYHcsvdJH7F_RJWif1CffaPZ58mm78nox4E2SjGXdsiIW1MIc-3b7lrAz8676xaw6W3Q_sx9yTKzNw9w5sDsm1GmrKLt0MZpI73Dfhqr7lnT77yTMPGtKziFP4/s320/IMG_3574.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">接下來還要在外部熔進兩根訂書針</div><div style="text-align: left;">兩個訂書針位置相對,這樣強度才夠</div><div style="text-align: left;">最後再用束帶熱熔補上塑膠</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihRIZENY_W28HaVMxhouw1CG_6xE1ObRwnZAuBpF8_FNw6VpK4wtJIejHzUfKJ_OrjNLLtkuEOXOEnHcFcW6nl-N6_ikRHRjlZo1Zpd_uf1PlQl384W91yT64g7fxFFkIzBZ3ubGZfLehRXRDMI7CAngFUL-vigYoc2VT9aa8HAE0l_9TS08EgBigjG_Rw/s3264/IMG_3575.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihRIZENY_W28HaVMxhouw1CG_6xE1ObRwnZAuBpF8_FNw6VpK4wtJIejHzUfKJ_OrjNLLtkuEOXOEnHcFcW6nl-N6_ikRHRjlZo1Zpd_uf1PlQl384W91yT64g7fxFFkIzBZ3ubGZfLehRXRDMI7CAngFUL-vigYoc2VT9aa8HAE0l_9TS08EgBigjG_Rw/s320/IMG_3575.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHYa94LW2Fgraja3tINhJl7CccRs1tEtsQO6oihzQMG4URtxbQHFRwPuQHxoB8s7CwtZT8BQP7MXsxVrmjBUjgF88dIvzvL2Yrb1iOM59kfckEMMcERe-qpMQ6q333ibrak_nzpBNDfFhz_wu-tt3ebTCt17XiOIYQG3YX-frYqt-pOmfcQbG9WMcvi1AA/s3264/IMG_3576.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHYa94LW2Fgraja3tINhJl7CccRs1tEtsQO6oihzQMG4URtxbQHFRwPuQHxoB8s7CwtZT8BQP7MXsxVrmjBUjgF88dIvzvL2Yrb1iOM59kfckEMMcERe-qpMQ6q333ibrak_nzpBNDfFhz_wu-tt3ebTCt17XiOIYQG3YX-frYqt-pOmfcQbG9WMcvi1AA/s320/IMG_3576.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzGGgPlK3rf7TY8mdQPsJiXX35RaGVdExx-1L1u0ONJ52PfTQIW7R_K7zgDIDfUcqqyNgcG1L1DTJtUZejul0g-uGvqjcWN2nLY3bgSiNZYjhn1-23UEajcubcfBLa6whA_hr6oiDsrWZ26Fsi2daQaxkN1sFub_FBt2-7tzMi-_-EbSLt7Tuhl0t34dYc/s3264/IMG_3577.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzGGgPlK3rf7TY8mdQPsJiXX35RaGVdExx-1L1u0ONJ52PfTQIW7R_K7zgDIDfUcqqyNgcG1L1DTJtUZejul0g-uGvqjcWN2nLY3bgSiNZYjhn1-23UEajcubcfBLa6whA_hr6oiDsrWZ26Fsi2daQaxkN1sFub_FBt2-7tzMi-_-EbSLt7Tuhl0t34dYc/s320/IMG_3577.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTWKYnaQX9bbBC4Sosrx4qhqUvV2FjfLwYdBZ9axl8XXwEsyl6TprU02QmpTX6zwxHJ6SHaRrR3ADbE_dKJONtJCbbtc1lkbc_JiGilIwK2OFmZndiwszzcj6DbwzQB_nuvoIluuJkoAPKAN_dokhJUxtDCRdnUurT0p-1usgScie3xSshrzQ8E8Jvhd_R/s3264/IMG_3578.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTWKYnaQX9bbBC4Sosrx4qhqUvV2FjfLwYdBZ9axl8XXwEsyl6TprU02QmpTX6zwxHJ6SHaRrR3ADbE_dKJONtJCbbtc1lkbc_JiGilIwK2OFmZndiwszzcj6DbwzQB_nuvoIluuJkoAPKAN_dokhJUxtDCRdnUurT0p-1usgScie3xSshrzQ8E8Jvhd_R/s320/IMG_3578.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9FVrKf1a23Ssjm7IY21uw93crHNqeWS8hJeaDkZRN1vVR0ePl79l4gmnrX3iebZYJwuHwyZ6GhZUkydxVKQYRlm8_wkrdct6sM8RZCsWqueN7kwLGp6bXZHFbaDdqg1yOPAXC_fa7c6v-_WyRJwB6IwuxG4LzIPCZqCYShnS0ocf3qFe5LEaQPTQJ_DF9/s3264/IMG_3579.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9FVrKf1a23Ssjm7IY21uw93crHNqeWS8hJeaDkZRN1vVR0ePl79l4gmnrX3iebZYJwuHwyZ6GhZUkydxVKQYRlm8_wkrdct6sM8RZCsWqueN7kwLGp6bXZHFbaDdqg1yOPAXC_fa7c6v-_WyRJwB6IwuxG4LzIPCZqCYShnS0ocf3qFe5LEaQPTQJ_DF9/s320/IMG_3579.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTw2FhPr6b9sSK0eR-_h06fiWRAIbCzJnKP6dJGyet5BDrP_1RhBD6M32CIS1zrQF2ge1wMf2gDiUR5tTMTZK9NiuccOVGZAiZzZQiDS7jZLeHHmpQXp7xg0BfW-XmGzVeBpjyL68k0sMb2Kr4bJNsr0PkQXW_JBqPNS6IUTMtudjD9CfF9LkSWYU00v3H/s3264/IMG_3580.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTw2FhPr6b9sSK0eR-_h06fiWRAIbCzJnKP6dJGyet5BDrP_1RhBD6M32CIS1zrQF2ge1wMf2gDiUR5tTMTZK9NiuccOVGZAiZzZQiDS7jZLeHHmpQXp7xg0BfW-XmGzVeBpjyL68k0sMb2Kr4bJNsr0PkQXW_JBqPNS6IUTMtudjD9CfF9LkSWYU00v3H/s320/IMG_3580.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhuDX0T4B7tVX5m2L7Q_rMIP8maCaT87wPRqw6JmSYtjRkfdfM1mchla8jIcEQIOF0KswLz5CLJoLeeh1MugdajSFlsZPQ38b3-7ZxG5Q8tAbvgjTbsmip-JqqpEsY6FDNouG5MiJ6EW4IyisrKebr1N7wGEpscRVmt2oWhq-VvEfmyr6w9uJBkUtLgvgQD/s3264/IMG_3581.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhuDX0T4B7tVX5m2L7Q_rMIP8maCaT87wPRqw6JmSYtjRkfdfM1mchla8jIcEQIOF0KswLz5CLJoLeeh1MugdajSFlsZPQ38b3-7ZxG5Q8tAbvgjTbsmip-JqqpEsY6FDNouG5MiJ6EW4IyisrKebr1N7wGEpscRVmt2oWhq-VvEfmyr6w9uJBkUtLgvgQD/s320/IMG_3581.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這樣就搞定了</div><div style="text-align: left;">測試了一陣子,還能承受內部強力彈簧的壓力</div><div style="text-align: left;">這樣應該就OK了</div><div style="text-align: left;"><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-73666463522582629202024-02-12T12:17:00.008+08:002024-02-15T09:45:19.091+08:00點火亮燈,吹氣滅燈<div style="text-align: left;">最近又有老師問我如何可以自學電子電路?</div><div style="text-align: left;">其實這件事<a href="https://l0930984547.blogspot.com/2023/01/blog-post_88.html" target="_blank">以前就說過</a></div><div style="text-align: left;"><div><br /></div><div><i><b>所有的複雜電路其實都是從基本電路組合起來的</b></i></div><div><i><b>「模組化」學習這個概念放在電子學是非常有用且務實的</b></i></div><div><i><b>把每個常用或實用的模組電路完全弄懂</b></i></div><div><i><b>一定要完全弄懂,不是只會看著圖接</b></i></div><div><i><b>一塊一塊學,最後組合起來就可以</b></i></div><div><i><b>但組合起來會不會有BUG?</b></i></div><div><i><b>當然會,所以一定要懂每個模組電路原理才能除BUG</b></i></div><div><i><b>基本功很痛苦,但過了就很輕鬆了</b></i></div><div><i><br /></i></div><div>這個有趣的電子蠟燭也是一個很好的案例</div><div><a href="https://l0930984547.blogspot.com/2024/02/blog-post_10.html" target="_blank">電子蠟燭的原理</a></div><div><a href="https://l0930984547.blogspot.com/2018/12/4017_12.html" target="_blank">4017單鍵開關</a></div><div><a href="https://l0930984547.blogspot.com/search?q=%E9%81%94%E9%9D%88%E9%A0%93" target="_blank">達靈頓電路</a></div><div>電容麥克風的原理</div><div><a href="https://l0930984547.blogspot.com/2023/01/blog-post_2.html" target="_blank">電容通交隔直的特性</a></div><div><a href="https://l0930984547.blogspot.com/search?q=%E7%A3%81%E7%B0%A7&updated-max=2021-08-12T15:38:00%2B08:00&max-results=20&start=5&by-date=false" target="_blank">磁簧的原理</a></div><div><a href="https://l0930984547.blogspot.com/2024/02/blog-post_8.html" target="_blank">自製磁簧開關</a></div><div><a href="https://l0930984547.blogspot.com/2019/10/blog-post_11.html" target="_blank">交流電容抗降壓</a></div><div>把這些原本就已經知道的東西組合起來</div><div>就是這個點火亮燈,吹氣滅燈的小玩具</div><div>先來看看效果</div><div>影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/XLyYo6Muy_4" width="320" youtube-src-id="XLyYo6Muy_4"></iframe></div><br /><div><br /></div><div>基本上就是把4017的pin14用光電二極體和電容麥克風來控制</div><div>點火時,光電二極體接收到紅外線就會導通</div><div>4017的pin2輸出高電位導通線圈</div><div>線圈產生磁場吸住磁簧就會導通AC110V的外電路</div><div>蠟燭燈就亮了</div><div>反之</div><div>吹氣時,電容麥克風電位拉高</div><div>4047的pin14再次接收到高電位,就會循環回到pin3</div><div>蠟燭燈就滅了</div><div>連接蠟燭燈的AC電源</div><div>安全起見,加上一個電容來限制最大電流</div><div>也就是所謂的容抗降壓電路</div><div><br /></div><div>所以這個小玩具其實只是個噱頭</div><div>就是之前<a href="https://l0930984547.blogspot.com/2024/01/blog-post_21.html" target="_blank">吹氣燈</a>的加強版而已</div><div>連續吹氣或點火,其實都可以控制明滅</div><div>那可不可以亮燈只能點火?</div><div>滅燈只能吹氣?</div><div>當然可以,之後再說了</div><div>電路圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_H6pIXLmCN1lM2nicrIQd_aknFCKmux7iJZ49r8U-nQ2OgZEb7zSh0583jDqrZdvpt6rDkL6cRFexMl0xTQtJwjtmo_LDzGaiSUzt_M2BZZK6ciHWvkjp61BQ6gWFhacvFXL_gqqxv-Rq_d3FHqZSxBU52f62ZnJGUWR1ZhYnKbKYAapDsR9ogdf5WCvK/s3264/IMG_3551.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_H6pIXLmCN1lM2nicrIQd_aknFCKmux7iJZ49r8U-nQ2OgZEb7zSh0583jDqrZdvpt6rDkL6cRFexMl0xTQtJwjtmo_LDzGaiSUzt_M2BZZK6ciHWvkjp61BQ6gWFhacvFXL_gqqxv-Rq_d3FHqZSxBU52f62ZnJGUWR1ZhYnKbKYAapDsR9ogdf5WCvK/s320/IMG_3551.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsWGq2epm8kerRGeLi7VQwr7hy1U0brVIkI5RX5zcbKe_xYDvSDgxiMRhiiGLyY9WZ4hzU1KPiNJnx8xA2uhqiVwQ3Ilxhc-mwdSNSNP3fr4ETo0YXZZATD6C1lhh8Aron4DmeVDbqYfx1dkDk-L5b_ArCmcVdB1wYZEd3808BGe_wRVfG5_kuDE62EP6j/s3264/IMG_3552.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsWGq2epm8kerRGeLi7VQwr7hy1U0brVIkI5RX5zcbKe_xYDvSDgxiMRhiiGLyY9WZ4hzU1KPiNJnx8xA2uhqiVwQ3Ilxhc-mwdSNSNP3fr4ETo0YXZZATD6C1lhh8Aron4DmeVDbqYfx1dkDk-L5b_ArCmcVdB1wYZEd3808BGe_wRVfG5_kuDE62EP6j/s320/IMG_3552.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-gLlvypldSR0/ZcmbqX8o8KI/AAAAAAAAiUU/sPNXkOrBVSsbTvwC6nePNOMXrS-PpqXpACNcBGAsYHQ/s3264/IMG_3553.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://1.bp.blogspot.com/-gLlvypldSR0/ZcmbqX8o8KI/AAAAAAAAiUU/sPNXkOrBVSsbTvwC6nePNOMXrS-PpqXpACNcBGAsYHQ/s320/IMG_3553.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLKyb9B3yGV4sEoV_T9JoTbbTk_TE7malUL6d_5OV64Cq4gB9bsZJ6iky2izGOufpBRihLNwONdqy5Zt8Jra1_AajYQ5RcYSKyb1Yu8oeBoYsde7hpvpll156T28aTWP5ilM_zcj3l1sjIXiGO-yhe16ZDn0X0h2EXGKmkXSD2qePC2HOrCHs6ydmV_stv/s3264/IMG_3554.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLKyb9B3yGV4sEoV_T9JoTbbTk_TE7malUL6d_5OV64Cq4gB9bsZJ6iky2izGOufpBRihLNwONdqy5Zt8Jra1_AajYQ5RcYSKyb1Yu8oeBoYsde7hpvpll156T28aTWP5ilM_zcj3l1sjIXiGO-yhe16ZDn0X0h2EXGKmkXSD2qePC2HOrCHs6ydmV_stv/s320/IMG_3554.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRni8KprWtylSLpMb843lMcTwa7yxZHSVC2-cRIUxYCzbvBImvWOdgS1Nl820hnduzlOye1vd5zqLP3qR0wdZe9sCHaKXRp1d5n28WXBaDIc1gK2U7UatUqyQpnuIpSEjODxUKQegsPNwK6Z12om458OrZqoG-oL_y_-nIhKFRJbg5f700PJ2OpNoj2zT5/s3264/IMG_3555.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRni8KprWtylSLpMb843lMcTwa7yxZHSVC2-cRIUxYCzbvBImvWOdgS1Nl820hnduzlOye1vd5zqLP3qR0wdZe9sCHaKXRp1d5n28WXBaDIc1gK2U7UatUqyQpnuIpSEjODxUKQegsPNwK6Z12om458OrZqoG-oL_y_-nIhKFRJbg5f700PJ2OpNoj2zT5/s320/IMG_3555.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFiYdVPXhIAUYR9b5wgV44Ayx7L_hHhuIguBKXKI-wnVAMe4XgjnLhgL-cSXe-pfOyHwUeMAmd-lg5cLCXcQk4zqyrobk6rTIDXn-Q-_B88SA6k1-R3l-81xvNhzGR7sUXZMwz5Khr9mccsN13aHbCKtQgNF9QQ04Zh7GBmlJBVAACzTfqC-4kHKj6Jw7j/s3264/IMG_3556.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFiYdVPXhIAUYR9b5wgV44Ayx7L_hHhuIguBKXKI-wnVAMe4XgjnLhgL-cSXe-pfOyHwUeMAmd-lg5cLCXcQk4zqyrobk6rTIDXn-Q-_B88SA6k1-R3l-81xvNhzGR7sUXZMwz5Khr9mccsN13aHbCKtQgNF9QQ04Zh7GBmlJBVAACzTfqC-4kHKj6Jw7j/s320/IMG_3556.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJc69x-MeJ1_p5mu6iqKsOMDnQD9uPAfOb1o4LHF8I0opqdX8hlBi7pTfTgcIUs8YtSHLEqnLMCXauKsXa-T-naay71ZsoQNr1goGpP0XYNdvCKcc5Eo6olWAqMljOMbpz1K23Yyqtoe65TWVtozUM2yZyA5hCOOUZtmEdHqSPN8fPwDk9UZhqRdp9Gicd/s3264/IMG_3557.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjJc69x-MeJ1_p5mu6iqKsOMDnQD9uPAfOb1o4LHF8I0opqdX8hlBi7pTfTgcIUs8YtSHLEqnLMCXauKsXa-T-naay71ZsoQNr1goGpP0XYNdvCKcc5Eo6olWAqMljOMbpz1K23Yyqtoe65TWVtozUM2yZyA5hCOOUZtmEdHqSPN8fPwDk9UZhqRdp9Gicd/s320/IMG_3557.JPG" width="320" /></a></div><br /><div><br /></div><div><br /></div></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-14253156637781046272024-02-10T11:49:00.002+08:002024-02-10T12:28:14.912+08:00蠟燭燈的有趣現象<div>以前媽媽過年都會點一個約1個星期的鳳梨燈</div>有個明火沒人看顧其實滿危險的<div>後來買了一個蠟燭燈放在神明廳<div>說這樣比點蠟燭安全多了</div><div><br /></div></div><div>這個蠟燭燈其實就是一個大功率的氖燈</div><div>仔細看會發現兩面金屬中間是沒東西的</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigop3oJaDEaVVVSuiABcHElb_UW_lBjDA7DBlAXwaB21bFl_-UYrm4xVoFLCmgU53gGfDLOzF1nP5HJC0QH-R3F-CTVp-iL9I9BeRAAPnNfPKxcAahi2gecVwaCALjoSEM4QsM29_OR4O96O0KTY-f6h-EM4KQM8lWwdtTGn44RgvVj5wS9G4JBxvVQg1Y/s3264/IMG_3539.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigop3oJaDEaVVVSuiABcHElb_UW_lBjDA7DBlAXwaB21bFl_-UYrm4xVoFLCmgU53gGfDLOzF1nP5HJC0QH-R3F-CTVp-iL9I9BeRAAPnNfPKxcAahi2gecVwaCALjoSEM4QsM29_OR4O96O0KTY-f6h-EM4KQM8lWwdtTGn44RgvVj5wS9G4JBxvVQg1Y/s320/IMG_3539.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbxpMYDnPpQs-V5C3H18wnnLwsUw5OnrEYdZhktZV4ebtTMiqet1QmJ7NBlWMCP7rzahLS89jXMXoZr0uCExKqr1YGWsZCUCPeFSIkmGeVBgwkEbIxAxRNo4WD8e0aKXWPf_HNdlX3bHgsW5UVaOB8YWtTJ_QMd6QroOuGo5tOa28Ip-gQSl1J0hK_a3J7/s3264/IMG_3550.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbxpMYDnPpQs-V5C3H18wnnLwsUw5OnrEYdZhktZV4ebtTMiqet1QmJ7NBlWMCP7rzahLS89jXMXoZr0uCExKqr1YGWsZCUCPeFSIkmGeVBgwkEbIxAxRNo4WD8e0aKXWPf_HNdlX3bHgsW5UVaOB8YWtTJ_QMd6QroOuGo5tOa28Ip-gQSl1J0hK_a3J7/s320/IMG_3550.JPG" width="320" /></a></div><br /><div><br /></div><div>高壓累積在金屬片上不定時導通兩側產生氣體放電</div><div>看起來就像是燭火般的不穩定閃爍</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYRnXUnBTjcat8o-PPjM_n2U9sn5mDbL6M8ycdiQFX1KilJPj7TQgGjujWHSMJtJJzc1bZH0KK_VfEbrDAzBPME_eukm_F3_aUcCXBKvw2trcfziuiopw6xcoLagt0j4jiKyYcyJwJYM6NIz75kM_nuCH8hmhiQX90TmEe3iH5dFasrUeiK5KeP49jLX59/s3264/IMG_3541.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYRnXUnBTjcat8o-PPjM_n2U9sn5mDbL6M8ycdiQFX1KilJPj7TQgGjujWHSMJtJJzc1bZH0KK_VfEbrDAzBPME_eukm_F3_aUcCXBKvw2trcfziuiopw6xcoLagt0j4jiKyYcyJwJYM6NIz75kM_nuCH8hmhiQX90TmEe3iH5dFasrUeiK5KeP49jLX59/s320/IMG_3541.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha7bBVSvPso-Ybs_yjk1Re4aMkrtUQfTIBDzUvllNUi3axRZQxj91KeZ42JsUnxDo9gNzTpdyHQ6bdpnjhv3nZVbttHdWPhgY-dl3mNmEuXr6fLOcXVl2hpI8pp-lVPpGhH524StSwcSDLXTgkZqtKHQ7SAIlzSvTwxWL4xwv9noTmfJWF9PsvppWqFotW/s3264/IMG_3542.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEha7bBVSvPso-Ybs_yjk1Re4aMkrtUQfTIBDzUvllNUi3axRZQxj91KeZ42JsUnxDo9gNzTpdyHQ6bdpnjhv3nZVbttHdWPhgY-dl3mNmEuXr6fLOcXVl2hpI8pp-lVPpGhH524StSwcSDLXTgkZqtKHQ7SAIlzSvTwxWL4xwv9noTmfJWF9PsvppWqFotW/s320/IMG_3542.JPG" width="320" /></a></div><br /><div><br /></div><div>如果接上110V的直流電呢?</div><div>結果很有趣</div><div>左側金屬板接負極,右側接正極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtuz-b_KAhB_NbETLdqB0QITU8NACkh64FPKoE2OGpEc6VEIpjyKINoFVKXuiLRXzwtCwKgbc9k9_NchGlox94SbqF75AAqVolKD-QY-GoQmWiiR13RFR2JN9FUiaMqb4J7MGAhBIU4YI_OHY2PXYReDI8x-jw8BSLZQ3h8uRdzw4joNon95yWJ6jEfmIb/s3264/IMG_3543.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtuz-b_KAhB_NbETLdqB0QITU8NACkh64FPKoE2OGpEc6VEIpjyKINoFVKXuiLRXzwtCwKgbc9k9_NchGlox94SbqF75AAqVolKD-QY-GoQmWiiR13RFR2JN9FUiaMqb4J7MGAhBIU4YI_OHY2PXYReDI8x-jw8BSLZQ3h8uRdzw4joNon95yWJ6jEfmIb/s320/IMG_3543.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN2TzOWUR9jTRb4ZYD-3OKs0HfMl3x8O-bRcGX6VyqSU65lxQ9tSHFX9Dd-haiiZ-VcCXfhhZmP2W0xce3iyCEFqWArNY4avHbaFgDClxean6V0A9HBjJCfoPueS43Dv2EUHDjPnlTsjFAmMTO8UnvLOb189Gg6So2oN_obNwyVBV8Fl5V1HeJPNwbV3Az/s3264/IMG_3545.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN2TzOWUR9jTRb4ZYD-3OKs0HfMl3x8O-bRcGX6VyqSU65lxQ9tSHFX9Dd-haiiZ-VcCXfhhZmP2W0xce3iyCEFqWArNY4avHbaFgDClxean6V0A9HBjJCfoPueS43Dv2EUHDjPnlTsjFAmMTO8UnvLOb189Gg6So2oN_obNwyVBV8Fl5V1HeJPNwbV3Az/s320/IMG_3545.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglYLBW4DSnjfAYU9ECq2VYe-PX-gCl8vFHqRsBCQpdhBQx4mVTrA44vhlBN31p425HVc24Ok2pCdJbvWyNNMsMaAi5Sq4_ha7XEgtNfALBhYayp87tHiaIfjvcbTbWUbqyHYCMexynFr5yuVo_E4RlKoiYi2J3Vb73iHQaxZmmyUPccYXyajGpBEvaEoAy/s1303/1707535299559.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="831" data-original-width="1303" height="204" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglYLBW4DSnjfAYU9ECq2VYe-PX-gCl8vFHqRsBCQpdhBQx4mVTrA44vhlBN31p425HVc24Ok2pCdJbvWyNNMsMaAi5Sq4_ha7XEgtNfALBhYayp87tHiaIfjvcbTbWUbqyHYCMexynFr5yuVo_E4RlKoiYi2J3Vb73iHQaxZmmyUPccYXyajGpBEvaEoAy/s320/1707535299559.jpg" width="320" /></a></div><br /><div><br /></div><div>右側金屬板接負極,左側接正極(左側光點是玻璃反光)</div><div> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqGSHobATlZYlxRY36eIi4BLyA2aYtfSDtZWLRN3AYBkG4QTP5eA8V_Ly0cxFKk-RO12BsiEwZjfkFveMHv_Vi-5NFnctBfAJrbLhQglJKxmCfpe7ZM1fXT_BDaGtD4hIwvUkHvZHPa__ex1jRD-JmYjSXOMkmbA57cqvDa3nxPqVonc7dBgjJi_iWjTHM/s3264/IMG_3548.JPG" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqGSHobATlZYlxRY36eIi4BLyA2aYtfSDtZWLRN3AYBkG4QTP5eA8V_Ly0cxFKk-RO12BsiEwZjfkFveMHv_Vi-5NFnctBfAJrbLhQglJKxmCfpe7ZM1fXT_BDaGtD4hIwvUkHvZHPa__ex1jRD-JmYjSXOMkmbA57cqvDa3nxPqVonc7dBgjJi_iWjTHM/s320/IMG_3548.JPG" width="320" /></a></div><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrljOG1z3qpjNTHvGedvgx_ICAAmWzkYaPnYZ0dj9yU5AuucLJ79CQrtlnNtHlte4AIibYUquHptsNv-u55oQT1kNr7Z3gRRnzWHXdl2liif0ngYD5eyb9ISefC7rlbNEEWC96qHkYi-R3nlxrOcN-gLV-Eey4fXi_TdN3LVgMJv6QYOMQi74A2JYcv7W-/s3264/IMG_3547.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrljOG1z3qpjNTHvGedvgx_ICAAmWzkYaPnYZ0dj9yU5AuucLJ79CQrtlnNtHlte4AIibYUquHptsNv-u55oQT1kNr7Z3gRRnzWHXdl2liif0ngYD5eyb9ISefC7rlbNEEWC96qHkYi-R3nlxrOcN-gLV-Eey4fXi_TdN3LVgMJv6QYOMQi74A2JYcv7W-/s320/IMG_3547.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiS5TAwBU6cKUy2cVdR6HhMvfpUX5OqgexbMZ8UhJoyokyod8HpVTz7zr4clw5BQMZfDTDj5B9_VEaDsuN6FgXLJRoK1Ug6jBkWSvf6wxolmnhahS88RjifKDX0Y5bYfrj40OLn3guDRWWu_GIUUluBRCCeoQA7OfI-Cgvpq6QBNw245MCebys9eCJNittD/s1186/1707535347054.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="836" data-original-width="1186" height="226" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiS5TAwBU6cKUy2cVdR6HhMvfpUX5OqgexbMZ8UhJoyokyod8HpVTz7zr4clw5BQMZfDTDj5B9_VEaDsuN6FgXLJRoK1Ug6jBkWSvf6wxolmnhahS88RjifKDX0Y5bYfrj40OLn3guDRWWu_GIUUluBRCCeoQA7OfI-Cgvpq6QBNw245MCebys9eCJNittD/s320/1707535347054.jpg" width="320" /></a></div><br /><div>影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/CeNPITqitQU" width="320" youtube-src-id="CeNPITqitQU"></iframe></div><br /><div><br /></div><div>仔細觀察會發現只有接負極的金屬板會明顯發亮</div><div>這樣可以說明電路中實際有能量的是電子嗎?</div><div>金屬板上累積到一定能量的電子才會放電</div><div>所以只有負極會發光</div><div>如果接上交流電</div><div>金屬板"原則上"就會隔1/120秒交換一次閃爍</div><div>當然肉眼是看不出頻率的</div><div><br /></div><div>過年發現的有趣東西~~</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-85354315917511634052024-02-08T11:55:00.001+08:002024-02-08T11:55:42.904+08:00自製磁簧繼電器<div style="text-align: left;">在設計某個電路的時候需要外掛繼電器</div><div style="text-align: left;">但我的輸出只有1-2V,電流也只能提供10mA左右</div><div style="text-align: left;">手邊目前有的繼電器只有5V和12V兩種</div><div style="text-align: left;">基本驅動電流至少也要30-50mA</div><div style="text-align: left;">當然最快的方法就是買一個低壓的繼電器</div><div style="text-align: left;">但這種繼電器很貴,遠水也就不了近火</div><div style="text-align: left;">就看看能不能自己設計一個出來先用了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">從基本原理來看</div><div style="text-align: left;">我要的就是用一個小訊號來開啟另一個開關</div><div style="text-align: left;">必須是隔離電路</div><div style="text-align: left;">所以電晶體和TRIAC就不考慮了</div><div style="text-align: left;">翻以前的部落格找靈感</div><div style="text-align: left;">發現計某個電路的時候需要繼電器外掛</div><div style="text-align: left;">但我的輸出只有1-2V,電流也只能提供10mA左右</div><div style="text-align: left;">手邊的繼電器只有5V和12V兩種</div><div style="text-align: left;">基本驅動電流至少也要30-50mA</div><div style="text-align: left;">當然最快的方法就是買一個低壓的繼電器</div><div style="text-align: left;">但這種繼電器很貴,遠水也就不了近火</div><div style="text-align: left;">就看看能不能自己設計一個出來先用了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">從基本原理來看</div><div style="text-align: left;">我要的就是用一個小訊號來開啟另一個開關</div><div style="text-align: left;">必須是隔離電路</div><div style="text-align: left;">所以電晶體和TRIAC就不考慮了</div><div style="text-align: left;">翻以前的部落格找靈感</div><div style="text-align: left;">發現3年前大停水時作的<a href="https://l0930984547.blogspot.com/2021/04/2.html" target="_blank">水塔水位偵測器</a></div><div style="text-align: left;">磁簧應該就是解方了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnPClCQCBKavOF3jbiDtjPtpGENsE6m9Gksf4DiXf2SMYw47F7AyAcYzdv4tn4figHPQKYDYK_OmCwxFl9oUs600SUOEE2tT5-8_STeI3R6gfJbcTUcTHuLebu63cVCcm2w18gC-9-h1BTVG60he457NBZ73HLy2VT7zGEZRW5lTRurqwD3qUI-czAVBXk/s3264/IMG_3534.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnPClCQCBKavOF3jbiDtjPtpGENsE6m9Gksf4DiXf2SMYw47F7AyAcYzdv4tn4figHPQKYDYK_OmCwxFl9oUs600SUOEE2tT5-8_STeI3R6gfJbcTUcTHuLebu63cVCcm2w18gC-9-h1BTVG60he457NBZ73HLy2VT7zGEZRW5lTRurqwD3qUI-czAVBXk/s320/IMG_3534.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">將磁簧放在0.15mm的漆包線圈內</div><div style="text-align: left;">漆包線通電後就會讓磁簧吸住通電</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyFdsq1NKmK9G6LhNf80G8FePjzT-oVrjX_sFatZ9aHcG2L5YbQ5-1N19yC7jrOhb_lg1K3AHENqKGpFu2-zw8M-HNxrzlDl32XoC7Zr885QodtzA1Xr3zTqYkEBIcWBpPvcFQsLh6_lOGGQRQVucocrqHbGgZw_08W4D3qPg3-9QDECIXXq2RBuwltwv7/s3264/IMG_3533.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyFdsq1NKmK9G6LhNf80G8FePjzT-oVrjX_sFatZ9aHcG2L5YbQ5-1N19yC7jrOhb_lg1K3AHENqKGpFu2-zw8M-HNxrzlDl32XoC7Zr885QodtzA1Xr3zTqYkEBIcWBpPvcFQsLh6_lOGGQRQVucocrqHbGgZw_08W4D3qPg3-9QDECIXXq2RBuwltwv7/s320/IMG_3533.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這就是我要的繼電器了</div><div style="text-align: left;">實際測試,1.5V的電池串聯100歐的電阻就能驅動磁簧</div><div style="text-align: left;">電流約8mA</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5QlIbZisADIj0xkPgmCiHsa53yqjAhtE5NGaM5sdj5M9ahysW6r2ueRiPORSGBGyuhIsnpT5kTPgAr3b7x2l-zbwk5poF63ZT24CGZ5FjYL3Um-pcCSsxGJm0fgUawA2olBBgl7HmjorhmuGjA1k3yARN_1u_QW1B8qJjIxyCbhD6LBZC8XNg17aTgoZy/s3264/IMG_3532.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5QlIbZisADIj0xkPgmCiHsa53yqjAhtE5NGaM5sdj5M9ahysW6r2ueRiPORSGBGyuhIsnpT5kTPgAr3b7x2l-zbwk5poF63ZT24CGZ5FjYL3Um-pcCSsxGJm0fgUawA2olBBgl7HmjorhmuGjA1k3yARN_1u_QW1B8qJjIxyCbhD6LBZC8XNg17aTgoZy/s320/IMG_3532.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">我需要外掛110V的AC</div><div style="text-align: left;">電流要大一點,吸力較強</div><div style="text-align: left;">磁簧的接觸電阻才會比較小</div><div style="text-align: left;">改為68歐的電阻,電流約10mA</div><div style="text-align: left;">這樣就搞定我的低壓磁簧繼電器了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZ4AQ4w3Vwz_jF0-3SQav-0KuHQTyEpYdOUAetZiFJs2cvNXEQUTB9TSlMak5ZaPnw9ok9atiWdIycPSZ7m47crCwLbWRt3nY6ebnWsY5UPfPuXWbrBjVkOCvtdaIC16IaRQYd0pKg52EPt9UjjoCjwxXXfI-LZuSA4evHM5xQlcoXpbX7397stOSGTUZ8/s3264/IMG_3538.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZ4AQ4w3Vwz_jF0-3SQav-0KuHQTyEpYdOUAetZiFJs2cvNXEQUTB9TSlMak5ZaPnw9ok9atiWdIycPSZ7m47crCwLbWRt3nY6ebnWsY5UPfPuXWbrBjVkOCvtdaIC16IaRQYd0pKg52EPt9UjjoCjwxXXfI-LZuSA4evHM5xQlcoXpbX7397stOSGTUZ8/s320/IMG_3538.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEho3qH_7k6f18K1fAxXyH8aLzTnmh6uxoJ8J2i9hCYxgZA6UjGW3upBqDD_u70cXsPwRKCIcyNk2ABYBVHUmVwB2gZbpIxs5iR8ROI57v-UdogltFlKVCUlo7KJIZ8u09SDkvnbAiqImk_vkD6ZktEpo-IKfgvwoHiTBjbm0exPVoLZqHdbyCVu2lpZPAIW/s3264/IMG_3537.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEho3qH_7k6f18K1fAxXyH8aLzTnmh6uxoJ8J2i9hCYxgZA6UjGW3upBqDD_u70cXsPwRKCIcyNk2ABYBVHUmVwB2gZbpIxs5iR8ROI57v-UdogltFlKVCUlo7KJIZ8u09SDkvnbAiqImk_vkD6ZktEpo-IKfgvwoHiTBjbm0exPVoLZqHdbyCVu2lpZPAIW/s320/IMG_3537.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">後續怎麼用?</div><div style="text-align: left;">以後再說了</div><div style="text-align: left;"><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-62797302326009773052024-02-03T20:54:00.005+08:002024-02-21T10:39:02.146+08:00指針型三用電表的電路_解決篇<div style="text-align: left;">我們將指針型三用電表拆開看看</div><div>裡面有兩組電池,3V+9V(這也是早就知道的事)</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0WAuSTCGZb-4KjF-K4NVHgVfzY8zUGk5ediwK3GmCJ3tZ1hom199nOkswQD0Up6Et9kTy2tN77kWMrG5xuVJqARuAFo3QNSIB9xb4NbV36skwS5XqQAjR6citaHUEtXy1bFn6y3yJWl-JlXbOx9YpiTVOnlrwTCZm9OUv6-ellPq1_CKaSNlYDOdLXpeq/s3264/IMG_3522.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0WAuSTCGZb-4KjF-K4NVHgVfzY8zUGk5ediwK3GmCJ3tZ1hom199nOkswQD0Up6Et9kTy2tN77kWMrG5xuVJqARuAFo3QNSIB9xb4NbV36skwS5XqQAjR6citaHUEtXy1bFn6y3yJWl-JlXbOx9YpiTVOnlrwTCZm9OUv6-ellPq1_CKaSNlYDOdLXpeq/s320/IMG_3522.JPG" width="320" /></a></div><br /><div><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdGVKb4OXXlDcZC_-qGpFP3NRV0pMhn63RwfsEXp1OJ-XIiJ4Se_2QhDOlWILAAm96WcswXTLqXBVncigosuCtWl_w9tOkaTlGStpBGSw1sP6eSuHG1Tuz9vr6QVh8sOjYUo7Mx-h6sCZmCZsS6kAbsl-PK7h3dV8LBQuUMp5a6iXUL149fj82KlCRM8Nl/s3264/IMG_3512.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3264" data-original-width="2448" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdGVKb4OXXlDcZC_-qGpFP3NRV0pMhn63RwfsEXp1OJ-XIiJ4Se_2QhDOlWILAAm96WcswXTLqXBVncigosuCtWl_w9tOkaTlGStpBGSw1sP6eSuHG1Tuz9vr6QVh8sOjYUo7Mx-h6sCZmCZsS6kAbsl-PK7h3dV8LBQuUMp5a6iXUL149fj82KlCRM8Nl/s320/IMG_3512.JPG" width="240" /></a></div><br /><div><br /></div><div>基本上9V只有調整到10K電阻檔才有功能</div><div>主要目的只是提供更高的電壓才能驅M歐等級的外電阻</div><div>實際量測,3V的正極是和9V的負極連接</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirKYEgi24c0iuZspRoRy_5DkCect73NzczrXYhMr1qrnaGWo_TCTCPjuPaCmPTX23CDF5Z215d6L-E-tk6hPATeRYKLL6TXMYk4q0wXjF4KU7yjMpUQ02BfQnPgZN8ChNoehLNRI4pFJA_j4_Fx2AFwKImNFYLw6r-t6h5blDwcoSX4jgxfUAb09tffi-a/s3264/IMG_3513.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirKYEgi24c0iuZspRoRy_5DkCect73NzczrXYhMr1qrnaGWo_TCTCPjuPaCmPTX23CDF5Z215d6L-E-tk6hPATeRYKLL6TXMYk4q0wXjF4KU7yjMpUQ02BfQnPgZN8ChNoehLNRI4pFJA_j4_Fx2AFwKImNFYLw6r-t6h5blDwcoSX4jgxfUAb09tffi-a/s320/IMG_3513.JPG" width="320" /></a></div><br /><div><br /></div><div>也就是兩組電池是串聯的</div><div>再測量3V電池的負極,和電表正極(紅探針)相連</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzFpR8FzBMhMnn8d43BA_CXwMWCjeRG24ZCA1wENEHRT0jt4LGkPaoShZXlUC1pf9JD-f9qaF5jEM_3wUVG_aee-Jh7pB7QhR-oAEmuavC20gZl1VK1Ci0gDHvkIweGF1u3hUuDjKHMeAzgy-KDPmiJt5RhUoLVxKfC6h6mxEHf_4gd89DZsBXS-dhL3Ci/s3264/IMG_3515.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhzFpR8FzBMhMnn8d43BA_CXwMWCjeRG24ZCA1wENEHRT0jt4LGkPaoShZXlUC1pf9JD-f9qaF5jEM_3wUVG_aee-Jh7pB7QhR-oAEmuavC20gZl1VK1Ci0gDHvkIweGF1u3hUuDjKHMeAzgy-KDPmiJt5RhUoLVxKfC6h6mxEHf_4gd89DZsBXS-dhL3Ci/s320/IMG_3515.JPG" width="320" /></a></div><br /><div><br /></div><div>3V正極則隨著電阻檔(1-10K)的不同,和電表負極有20-20K歐左右的電阻</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjutKuXXYrEfU65FNeWgZWa3mFY7Ax47ijjbmQew6Af_X0djhyc3MSoUDbQOvpu27MOkJN36edoOlaMBPSmLyttMSgV7u-bVH9lcK2HPHbkid6j3i3kzxcTbg2n4zs4Ex29cXN9llxfKaRU5cZhTuhmUsG25KfY95gcWKMLjNGrLbzBPdTs72zQRqE88HtW/s3264/IMG_3527.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjutKuXXYrEfU65FNeWgZWa3mFY7Ax47ijjbmQew6Af_X0djhyc3MSoUDbQOvpu27MOkJN36edoOlaMBPSmLyttMSgV7u-bVH9lcK2HPHbkid6j3i3kzxcTbg2n4zs4Ex29cXN9llxfKaRU5cZhTuhmUsG25KfY95gcWKMLjNGrLbzBPdTs72zQRqE88HtW/s320/IMG_3527.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibYIwEpdYy9tcX79z5gixxefRooG-ZIPavqzGl_4f4PDrj2uMwUISbEFI1DjzJO3Pm-X6qvMB9C1ryrq5CLm7yVMyjZ9-n05eJDFA0UrfaJFEN3dYu6qkBm5NyLrDomGcfJjKWhpjA9s6uQD4ohzRs3LhDenDtUA_nXhsUwg9uysq2BWZN6uDpGd45vUW5/s3264/IMG_3526.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibYIwEpdYy9tcX79z5gixxefRooG-ZIPavqzGl_4f4PDrj2uMwUISbEFI1DjzJO3Pm-X6qvMB9C1ryrq5CLm7yVMyjZ9-n05eJDFA0UrfaJFEN3dYu6qkBm5NyLrDomGcfJjKWhpjA9s6uQD4ohzRs3LhDenDtUA_nXhsUwg9uysq2BWZN6uDpGd45vUW5/s320/IMG_3526.JPG" width="320" /></a></div><br /><div><br /></div><div>10K檔則是要連接到9V的正極才有阻值</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMorcqsmJHRT88Xp5HUnLqD58fpP-A7479fbg7mg64e-0e-xzw0GCKfDEMr-HHOy3hGn_1f0hO_AFwu4htb65rV6_iuzFd-KVLBNCOufnlhvywaqEwYItmnY3G1VCPelxd6fTO9XC_lyR4hLRP5fZ0uWXgwE2hHuYXmKXZx9DTq0qQmHwAMgiaX7941xDo/s3264/IMG_3528.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMorcqsmJHRT88Xp5HUnLqD58fpP-A7479fbg7mg64e-0e-xzw0GCKfDEMr-HHOy3hGn_1f0hO_AFwu4htb65rV6_iuzFd-KVLBNCOufnlhvywaqEwYItmnY3G1VCPelxd6fTO9XC_lyR4hLRP5fZ0uWXgwE2hHuYXmKXZx9DTq0qQmHwAMgiaX7941xDo/s320/IMG_3528.JPG" width="320" /></a></div><br /><div><br /></div><div>再量測表頭的負極,和電表的負極也是相連的</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_v2Dvk8Uzt5lLfU60EH7l8MF_9QkZFnRYTfuIH8Q6e9vV_xtNKU6Y5ZsmgrBJBkPeu_CW2edtmqNL12VCOakMqExDstBt3eaL8STD0Bjq8k0llZgU-A-R-q561-lXgcYXy0fwO6CxwvTgtJ5dLgPXxKAxfjcaaw6Gt675_U5j3X7BW2XK_2JfcBQJNSsS/s3264/IMG_3520.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_v2Dvk8Uzt5lLfU60EH7l8MF_9QkZFnRYTfuIH8Q6e9vV_xtNKU6Y5ZsmgrBJBkPeu_CW2edtmqNL12VCOakMqExDstBt3eaL8STD0Bjq8k0llZgU-A-R-q561-lXgcYXy0fwO6CxwvTgtJ5dLgPXxKAxfjcaaw6Gt675_U5j3X7BW2XK_2JfcBQJNSsS/s320/IMG_3520.JPG" width="320" /></a></div><br /><div><br /></div><div>表頭的正極則隨著V、I不同檔位有不同阻值</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiUe_p1pAvyTB4sWyMxzVs988UNRBRmzqMCLWtFw5ah45cSrWkeYcB2CBZN2_N_D5EzWLy8KNiPmgmZpOXxwRnWrR0dTlQeenH1IzV6O0O0BBgYWFl8Jx1SWNYLZC5a1GSu8Enrh-13tztgxfKaRTWJ4ZR7NKBWajEB0KQhtaqmxeIaD_tFE32Im8hxMtX/s3264/IMG_3521.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiUe_p1pAvyTB4sWyMxzVs988UNRBRmzqMCLWtFw5ah45cSrWkeYcB2CBZN2_N_D5EzWLy8KNiPmgmZpOXxwRnWrR0dTlQeenH1IzV6O0O0BBgYWFl8Jx1SWNYLZC5a1GSu8Enrh-13tztgxfKaRTWJ4ZR7NKBWajEB0KQhtaqmxeIaD_tFE32Im8hxMtX/s320/IMG_3521.JPG" width="320" /></a></div><br /><div><br /></div><div>但切到R檔就是不通的(電池拆掉的時候)</div><div>這樣一切就說得通了</div><div>電路示意圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXAB3UlS9kCGEks6yVYJ4qlXZoNIvYAJSyORyohTWYeqpWyAp17QmWNN0E_UD2FFP6bT2XMaf23P4UCQAAJeFG3cZbpfL7xXTc6o9xW0hYuHoeYWhtawiMMuUjvSyMqliNyZP0PYOQp_ew0dszGzexADMh8IuuSciKZkrVwnahikFrnkwE5baKhw0DepYz/s3264/IMG_3529.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXAB3UlS9kCGEks6yVYJ4qlXZoNIvYAJSyORyohTWYeqpWyAp17QmWNN0E_UD2FFP6bT2XMaf23P4UCQAAJeFG3cZbpfL7xXTc6o9xW0hYuHoeYWhtawiMMuUjvSyMqliNyZP0PYOQp_ew0dszGzexADMh8IuuSciKZkrVwnahikFrnkwE5baKhw0DepYz/s320/IMG_3529.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><div>基本上表頭的電流一定要從正極流向負極</div><div>指針才會向右順時針偏轉</div><div>當測量電壓或電流時</div><div>電表由外界供電,電流都是從表頭正極流向負極</div><div>但要量電阻時,必須由電表自己對待測電阻供電</div><div>為了保持電流還是要從表頭的正極進入</div><div>內建電源只好將負極連接在電表正極(紅探針)的地方</div><div>這樣表頭的電流方向才會是正確的</div><div>若不知道,真的會被他搞死...</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-24619107171257211942024-02-03T20:41:00.009+08:002024-02-21T10:12:36.923+08:00指針型三用電表的電路_問題篇<div style="text-align: left;">三用電表可以測LED燈,應該是基本都知道的了</div><div style="text-align: left;">詳細可以<a href="https://l0930984547.blogspot.com/2019/08/blog-post_28.html" target="_blank">看這篇</a>,就不再重述</div><div style="text-align: left;">基本上我們的習慣就是紅為正、黑為負</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8vZAzgnL6MxBqmYgr90UUx9O3SVLw21XyMHm0D_AeD8Mn-GKNjIPPzXeXi6M8664fcoJIvWr1BWnQs6s0nZGezhEgUy4bwEBvyxVsKvP5HARcMySKxmlKV9CCoyiuGWPGqPtNU4r7rBQfMsQiSOCwHE9T-s0OwFV-SmRJO9Dv6ppmPMY5FxypBD5RDSWI/s1600/IMG_4763.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1200" data-original-width="1600" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8vZAzgnL6MxBqmYgr90UUx9O3SVLw21XyMHm0D_AeD8Mn-GKNjIPPzXeXi6M8664fcoJIvWr1BWnQs6s0nZGezhEgUy4bwEBvyxVsKvP5HARcMySKxmlKV9CCoyiuGWPGqPtNU4r7rBQfMsQiSOCwHE9T-s0OwFV-SmRJO9Dv6ppmPMY5FxypBD5RDSWI/s320/IMG_4763.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">所以測量二極體或LED時</div><div style="text-align: left;">紅探針(正極)接長腳(正),黑探針(負極)接短腳(負)</div><div style="text-align: left;">但忽然發現,指針型電表怎麼是相反的?</div><div style="text-align: left;">必須紅探針(正極)接短腳(負),黑探針(負極)接長腳(正)</div><div style="text-align: left;">LED才會亮</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguqFfmtCrwXaDBgecqHyLSbs0S7xQu-LF9KPWqhfmrX1Yt4y1nzIS1A0EYxIEOg8hEQQ5rsQrWI7iqVfLqHxak83oUCz53AiZiqOvJIcJopFlQHF8HfEslTypqqr8ZdG5R66pJa7pGqqkUZiKEx91lfrWd99aOJq_tJc4VIvkaMacwib03lZmDEBhyCkcP/s3264/IMG_3518.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguqFfmtCrwXaDBgecqHyLSbs0S7xQu-LF9KPWqhfmrX1Yt4y1nzIS1A0EYxIEOg8hEQQ5rsQrWI7iqVfLqHxak83oUCz53AiZiqOvJIcJopFlQHF8HfEslTypqqr8ZdG5R66pJa7pGqqkUZiKEx91lfrWd99aOJq_tJc4VIvkaMacwib03lZmDEBhyCkcP/s320/IMG_3518.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhV8Pkg6OQf7vfx_0-yYDDYN5SYQ76hT3Xh0afU1Buz6VhZhqnMktQyWSZExyeYkc9nLG2gVPkfkNLBm5hW8h3fyYW15jsDtWAVuZVCn3y43m3jVkxTkA0iuDMH1iYRPWH2aWz6ThUsj4wtZLi2rAk1WPbeAsbIhmnMlwYjY1nGS5jcLmrmOF4AryeAIXeo/s3264/IMG_3519.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhV8Pkg6OQf7vfx_0-yYDDYN5SYQ76hT3Xh0afU1Buz6VhZhqnMktQyWSZExyeYkc9nLG2gVPkfkNLBm5hW8h3fyYW15jsDtWAVuZVCn3y43m3jVkxTkA0iuDMH1iYRPWH2aWz6ThUsj4wtZLi2rAk1WPbeAsbIhmnMlwYjY1nGS5jcLmrmOF4AryeAIXeo/s320/IMG_3519.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">直接用另一台電表測量</div><div style="text-align: left;">負極輸出高電位,正極輸出低電位</div><div style="text-align: left;">也就是黑為正,紅為負</div><div style="text-align: left;">有趣了~~</div><div style="text-align: left;"><div>實際測量看看</div><div>電阻檔1-1K,輸出都約3.2V</div><div>10K檔約10.3V</div></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaQTTKIxchOiNlzWM88EVv2yHQpBovQVuCWvK3o2-yWFYZsgfAVEoMtID3PkvAZ2unzjBIuGvcQfy5g4KCxH-QVfyPThLsH_e0C7VpXFar541NfacaYlGaKae-RmiPYkbjw8pfS65w01aD-uG2jwlfDdk2FaDnx5M8jk14RQktQBkAmZaPd5R4bFrQcjSv/s3264/IMG_3516.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaQTTKIxchOiNlzWM88EVv2yHQpBovQVuCWvK3o2-yWFYZsgfAVEoMtID3PkvAZ2unzjBIuGvcQfy5g4KCxH-QVfyPThLsH_e0C7VpXFar541NfacaYlGaKae-RmiPYkbjw8pfS65w01aD-uG2jwlfDdk2FaDnx5M8jk14RQktQBkAmZaPd5R4bFrQcjSv/s320/IMG_3516.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFpkkmTIhZXGO0PJv7KFmF54gO_g2_tat_9xpH0JEA2UnyB3ulbn-ydCcauTk0ldgEPw30ES0cNO6erj44188iHg3tGbDfg9yNn5pzoh2svYkCWEWd15aZdUYcfy2BusvNDLCe5U_kQACvW-No6XaYywVHmjjzTi8xJpo5BQLmle2eBWmlacbpLhzX_NcZ/s3264/IMG_3517.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFpkkmTIhZXGO0PJv7KFmF54gO_g2_tat_9xpH0JEA2UnyB3ulbn-ydCcauTk0ldgEPw30ES0cNO6erj44188iHg3tGbDfg9yNn5pzoh2svYkCWEWd15aZdUYcfy2BusvNDLCe5U_kQACvW-No6XaYywVHmjjzTi8xJpo5BQLmle2eBWmlacbpLhzX_NcZ/s320/IMG_3517.JPG" width="320" /></a></div><div style="text-align: left;"><br /></div><div style="text-align: left;"><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-83305366533725177152024-02-03T10:52:00.002+08:002024-02-03T10:52:13.919+08:00改裝直交流兩用數位雙顯電表<div style="text-align: left;">之前教具醫生計畫在北斗國中看到這個<a href="https://l0930984547.blogspot.com/2022/12/blog-post_22.html" target="_blank">交流電錶</a></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgH9w9owsU0QjD8nPotJ_sNqTkJZ9IhNJEAX0de94XYguSTgidnRtZIzi0Mdg8RRJopPEZblyog9_iMc2ZSuHucIZ5cFmR01KApFb9o5dGxTnLAxJtC5dTr4TFT9hVgkYvVxKAkNWTwm9axVUq98btFkdJqrrPEht0HpyeZ5QG91SadO94TE1vaH7fW9k5B/s3264/IMG_1275.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgH9w9owsU0QjD8nPotJ_sNqTkJZ9IhNJEAX0de94XYguSTgidnRtZIzi0Mdg8RRJopPEZblyog9_iMc2ZSuHucIZ5cFmR01KApFb9o5dGxTnLAxJtC5dTr4TFT9hVgkYvVxKAkNWTwm9axVUq98btFkdJqrrPEht0HpyeZ5QG91SadO94TE1vaH7fW9k5B/s320/IMG_1275.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">很新奇啊~~</div><div style="text-align: left;">當時對於原理還沒有概念</div><div style="text-align: left;">不過有些事就是需要時間發酵...</div><div style="text-align: left;">最近<a href="https://l0930984547.blogspot.com/2024/01/blog-post_16.html">維修雙顯電表</a>又開始研究了一大堆週邊的東西</div><div style="text-align: left;">但也因為這樣有了一些靈感</div><div style="text-align: left;">不管是指針還是數位,基本都還是利用直流電流來轉換</div><div style="text-align: left;">那如果直接通入交流電呢?</div><div style="text-align: left;">就把它轉成直流電不就好了</div><div style="text-align: left;">搞了一陣子</div><div style="text-align: left;">嘗試將這個直流雙顯電錶弄成直交流兩用的顯示器</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAI2XiytZmnRtXFMfHGI-PvreDFBE52MU5iIDOhYMLtbS1ybLSjxURZB6ogLK-cmDhcOaez-H08iQ-JmTtSi-ClHSJTOkyTvXt-O3IBmTs1AJHNv4NDbVmYst-sZ-BA_e0G4NyIU6s3YdbVY-CvUmAagoD6hvwh6VJqwE-Aj9LehwhONljcVfB6rScij1i/s3264/IMG_3282.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAI2XiytZmnRtXFMfHGI-PvreDFBE52MU5iIDOhYMLtbS1ybLSjxURZB6ogLK-cmDhcOaez-H08iQ-JmTtSi-ClHSJTOkyTvXt-O3IBmTs1AJHNv4NDbVmYst-sZ-BA_e0G4NyIU6s3YdbVY-CvUmAagoD6hvwh6VJqwE-Aj9LehwhONljcVfB6rScij1i/s320/IMG_3282.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這樣我的六段交直流電源供應器就可以發揮更大的功效了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">基本上電流的部分就是讓他通過一組橋式全波整流</div><div style="text-align: left;">橋式整流原則上只會降壓不會耗能</div><div style="text-align: left;">所以測量直流電流幾乎和直接接電錶一樣</div><div style="text-align: left;">所以不管輸入是直流還是交流</div><div style="text-align: left;">都可以正常顯示安培數</div><div style="text-align: left;">不過交流電流實際上還是會小一點</div><div style="text-align: left;">就當作參考吧</div><div style="text-align: left;"><br /></div><div style="text-align: left;">但電壓呢?</div><div style="text-align: left;">當然也可以再給他一組全橋</div><div style="text-align: left;">但這樣壓降會有1-1.4V左右</div><div style="text-align: left;">我的電源,AC原則上3-12V</div><div style="text-align: left;">壓降如果超過1V,比例就很大了</div><div style="text-align: left;">所以決定用半橋來處理,壓降約0.5-0.7V</div><div style="text-align: left;">但半橋會讓偵測出來的電壓只有一半左右</div><div style="text-align: left;">這時就是關鍵了</div><div style="text-align: left;">在loading後端和電壓偵測線並聯一個濾波補充電容</div><div style="text-align: left;">當電容越大,電壓就可以拉上去</div><div style="text-align: left;"><div>電路圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNC0Rr1r8gk15oISTbHT3vw2LMP0mFYWO8hHhJPWoqjNb_SGU3kE7ytEUAOLEkst8n81jCO6O73pAcq95T7-5ys4PjdXXG19PdZ8YM1qatM4PTtqWUwvWIKY5-MfAtfTlZMGrsxMSbmjDntr3__aU2z354_VUe2fSxtiy0iDNN5A4gm7jhY0NGXJmIX4SL/s3264/IMG_3511.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNC0Rr1r8gk15oISTbHT3vw2LMP0mFYWO8hHhJPWoqjNb_SGU3kE7ytEUAOLEkst8n81jCO6O73pAcq95T7-5ys4PjdXXG19PdZ8YM1qatM4PTtqWUwvWIKY5-MfAtfTlZMGrsxMSbmjDntr3__aU2z354_VUe2fSxtiy0iDNN5A4gm7jhY0NGXJmIX4SL/s320/IMG_3511.JPG" width="320" /></a></div><br /><div><br /></div><div>裁了一個小麵包板集成</div><div>這樣未來如果需要更動電容的大小才會方便</div></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiEq-xQXz1qurZLw8yr2nqFt0ELUDj6JFpTmtAY8nhZ_3rhy8yZ1q4wkBeHl1UtAqF-Z9DvFCURvp4ZDVA-EF-otc435eeet24b1FY_8pvgp8ydVewTadJihcLtEnDnxWPkXaRSTD7zWCruddkxiVfc2lv-LlIiTsAKC2z6OrIXLKyXww8i8iW9ve7rXIa/s3264/IMG_3470.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiEq-xQXz1qurZLw8yr2nqFt0ELUDj6JFpTmtAY8nhZ_3rhy8yZ1q4wkBeHl1UtAqF-Z9DvFCURvp4ZDVA-EF-otc435eeet24b1FY_8pvgp8ydVewTadJihcLtEnDnxWPkXaRSTD7zWCruddkxiVfc2lv-LlIiTsAKC2z6OrIXLKyXww8i8iW9ve7rXIa/s320/IMG_3470.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqCY80Cws94kCQYVQ7sA3h7VUSbJfE0CBezwiaGxRlrEwTrl9SMoM1gwmKMr-DLc4-_2GyIjVOQQ6V2zPYfY8QaCFzRnMNbY6eAJScx6j5-1J320Y-F3FBiYJ1TWMxMd_1hJ4U8PuNeUimVK636Tyju3SH-lm-0fh5TSufRTE6WkpawbzYfNGVVkLRGoSd/s3264/IMG_3471.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqCY80Cws94kCQYVQ7sA3h7VUSbJfE0CBezwiaGxRlrEwTrl9SMoM1gwmKMr-DLc4-_2GyIjVOQQ6V2zPYfY8QaCFzRnMNbY6eAJScx6j5-1J320Y-F3FBiYJ1TWMxMd_1hJ4U8PuNeUimVK636Tyju3SH-lm-0fh5TSufRTE6WkpawbzYfNGVVkLRGoSd/s320/IMG_3471.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghoPD77IeaNWx127EfVTlfPbSG7KVcAi23NEv6KVkH8s7PvcPXbwo6OWhJ9zXlUdwkyIJPLEh05C2xPc4eCdki3uop2n_v8v76czzw_z1RXyBHALljBbsweWoNlXd476YniDuqLbKU7xy8DZe1pm7zzBq3u97TnBDkk6d9sQMud66v70M2bsPEr-yF556g/s3264/IMG_3472.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEghoPD77IeaNWx127EfVTlfPbSG7KVcAi23NEv6KVkH8s7PvcPXbwo6OWhJ9zXlUdwkyIJPLEh05C2xPc4eCdki3uop2n_v8v76czzw_z1RXyBHALljBbsweWoNlXd476YniDuqLbKU7xy8DZe1pm7zzBq3u97TnBDkk6d9sQMud66v70M2bsPEr-yF556g/s320/IMG_3472.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmtxAqK69YeoNw56ykhvS1YuS9r4zySvMB7b1rE2zvJDFqSX4dqH9kPPyKXEneRtZn_ZXs0L0avt8iCq_a3ynkmW6ePYT-FTWNoIos8BQbhBYxkHKHX0C3uGuzb8SzKaVH5bbyS4Xgb2STTyil75VzDFUJy5BP8kg1ohtv-rdMV3krzKg_CChSx91y-tvK/s3264/IMG_3473.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmtxAqK69YeoNw56ykhvS1YuS9r4zySvMB7b1rE2zvJDFqSX4dqH9kPPyKXEneRtZn_ZXs0L0avt8iCq_a3ynkmW6ePYT-FTWNoIos8BQbhBYxkHKHX0C3uGuzb8SzKaVH5bbyS4Xgb2STTyil75VzDFUJy5BP8kg1ohtv-rdMV3krzKg_CChSx91y-tvK/s320/IMG_3473.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">可以看看以下實驗的結果</div><div style="text-align: left;">就以中間值約AC 7.5V來當作參考值</div><div style="text-align: left;">沒有補充電容</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjE1OOSyZRXLZtQ-RRU1a99yAwjGLqzHf5T_X_dlE8GDtxMCX8lSaQ2tda9l4h9Bn2nSRlVGRgFTsT86-YDj0THR5EphjCNZUiTv3pZfhkLyxMOrQs_jYN_RS8wKWZh0TLkb-8mNOK8jQ8zPopM6_7O9RPg5TiFGySdkZGb7Nt8yw1g6I1rr_1TVEBzVjrJ/s3264/IMG_3505.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjE1OOSyZRXLZtQ-RRU1a99yAwjGLqzHf5T_X_dlE8GDtxMCX8lSaQ2tda9l4h9Bn2nSRlVGRgFTsT86-YDj0THR5EphjCNZUiTv3pZfhkLyxMOrQs_jYN_RS8wKWZh0TLkb-8mNOK8jQ8zPopM6_7O9RPg5TiFGySdkZGb7Nt8yw1g6I1rr_1TVEBzVjrJ/s320/IMG_3505.JPG" width="320" /></a></div><div style="text-align: left;"><br /></div><div style="text-align: left;"><br /></div><div style="text-align: left;">電容0.001微法(103)</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDQpOETMV5gyrmJc3xIsXZgqrxFBAIuCf12udLPtZsO97-qSLn8o43leq-gUu3KM4zbKBY6Ik5TAq2bMW74GR1w4HtCqhc8V4IEzEHRi08sD-rEpVPtVTjeJrfbMFp6fNhkMCxmXc5ZpjdC4KGmD7WwY945Y8o7RU6QNc-QCD4TfRXCqIC9ktEPoI56Kbs/s3264/IMG_3506.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDQpOETMV5gyrmJc3xIsXZgqrxFBAIuCf12udLPtZsO97-qSLn8o43leq-gUu3KM4zbKBY6Ik5TAq2bMW74GR1w4HtCqhc8V4IEzEHRi08sD-rEpVPtVTjeJrfbMFp6fNhkMCxmXc5ZpjdC4KGmD7WwY945Y8o7RU6QNc-QCD4TfRXCqIC9ktEPoI56Kbs/s320/IMG_3506.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">電容0.01微法(104)</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHJpyRMLRUWWLEEB9_4fjZX4KycdSzqxpOnKRQQ4IgGgq8vCDbItt8p6Ydm48O5aGoWR8p-V0IGYS59-ptBhQvIPzVdfrE31L6poXb0jzQ6l8fnPsyqiANm81ECOnCL22k2sfYNES75OqkxQHb6GakogsE3Ep4gpbceU1lH6PcXJ3ahJDuUgf79WaHMC-l/s3264/IMG_3507.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHJpyRMLRUWWLEEB9_4fjZX4KycdSzqxpOnKRQQ4IgGgq8vCDbItt8p6Ydm48O5aGoWR8p-V0IGYS59-ptBhQvIPzVdfrE31L6poXb0jzQ6l8fnPsyqiANm81ECOnCL22k2sfYNES75OqkxQHb6GakogsE3Ep4gpbceU1lH6PcXJ3ahJDuUgf79WaHMC-l/s320/IMG_3507.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">電容0.22微法</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhd7NM73jZ5wvB4MRDcTbY4p_BN1odmC6qEWUtiupA_YP-0pMre7OXyX5xcatbSbd7XMLFB-uywmuReQxMl2UirOukNfIisraLZ9i8z-gb89ZILC6uiMuEP_sNsZ7dzJLpeASa2rTqmTMgWSoPOu-hM99UwaAPEFEKOx3AD6jf8RB1ktPctA41z0TnSk7cp/s3264/IMG_3508.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhd7NM73jZ5wvB4MRDcTbY4p_BN1odmC6qEWUtiupA_YP-0pMre7OXyX5xcatbSbd7XMLFB-uywmuReQxMl2UirOukNfIisraLZ9i8z-gb89ZILC6uiMuEP_sNsZ7dzJLpeASa2rTqmTMgWSoPOu-hM99UwaAPEFEKOx3AD6jf8RB1ktPctA41z0TnSk7cp/s320/IMG_3508.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">電容1微法</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg86FiVmj2PtMApnBIrQrK66eSW2pN4FFI1HynGauAW48aZzPyenYTyW_EHAYRcBJBmT4scfNzzQdn87lbyFBjbUdGbNkSOGkiPYvE9Jeiv9TV4mI1JzJkUih_vwY-DBfRf3mQp_RV8565nyyLIrIMiHUpZGhA108_Lb5i09A-wzim7A8Qa6CgmioCYhPja/s3264/IMG_3509.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg86FiVmj2PtMApnBIrQrK66eSW2pN4FFI1HynGauAW48aZzPyenYTyW_EHAYRcBJBmT4scfNzzQdn87lbyFBjbUdGbNkSOGkiPYvE9Jeiv9TV4mI1JzJkUih_vwY-DBfRf3mQp_RV8565nyyLIrIMiHUpZGhA108_Lb5i09A-wzim7A8Qa6CgmioCYhPja/s320/IMG_3509.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">電容10微法</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcdLAtgbIhJ9JeCzEqmfh62bYxmBOfehuv0jl5ZSN-RBK2LPDUyM2gHYHZ_OXRsGxcI5yiRgNSTVDfT7FnzM_JnDc43McfrO_W7Zz4TaQteDLsPWq1Eul_CyDIM7hEDb90VccnWm4PVjxFMoDBHRtMjwR6e-r6lVLjM141_yTir-uACpRrUEz1nEvcx1Pm/s3264/IMG_3510.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcdLAtgbIhJ9JeCzEqmfh62bYxmBOfehuv0jl5ZSN-RBK2LPDUyM2gHYHZ_OXRsGxcI5yiRgNSTVDfT7FnzM_JnDc43McfrO_W7Zz4TaQteDLsPWq1Eul_CyDIM7hEDb90VccnWm4PVjxFMoDBHRtMjwR6e-r6lVLjM141_yTir-uACpRrUEz1nEvcx1Pm/s320/IMG_3510.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">但電容值和VCC有關</div><div style="text-align: left;">所以只能犧牲最高和最低兩個極端電壓的部分會比較不準</div><div style="text-align: left;">測試的結果發現0.22微法差不多</div><div style="text-align: left;">電表電源外掛,才不會受到VCC太小無法驅動的問題</div><div style="text-align: left;"><br /></div><div style="text-align: left;">最後用電表再確認一下準確值</div><div style="text-align: left;">左邊電表是電流值,右邊電表是負載的電壓值</div><div style="text-align: left;">AC</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibjuPrHbKAGRYfeKMN470U0hMlc7GMlimG1AfVYnTiAYszeF9DfrCoFrmLQs09D0cRqbOa6VfOrkO8RHbD1KaWdvOYGPYCw-I4f5oYen0Pjltbof4ojHQFq3T3mHYdd_4b44SLtljydujv9yQLLzdOZARA7gLqWP6xyY-FtfDJnDObv_UXRuQNjCRj6txY/s3264/IMG_3475.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibjuPrHbKAGRYfeKMN470U0hMlc7GMlimG1AfVYnTiAYszeF9DfrCoFrmLQs09D0cRqbOa6VfOrkO8RHbD1KaWdvOYGPYCw-I4f5oYen0Pjltbof4ojHQFq3T3mHYdd_4b44SLtljydujv9yQLLzdOZARA7gLqWP6xyY-FtfDJnDObv_UXRuQNjCRj6txY/s320/IMG_3475.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ81h4MLJFcJLiqbk4cb227tzhFaqWEJVE6n1H0StCM1Q0H8a-yjhntvOEaPsr6rj9uQ218YIlwDiJtTl3pxMU1wDmXUgmIh5_yCAGJB_RLHjoAIXanlrRpDH7kLqvrI2cT2L2nOkAmsVPCsaWviLHckWLfFWCsk2ktAt3ollYVH7pNv0KQsBVR-lYfBeJ/s3264/IMG_3476.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ81h4MLJFcJLiqbk4cb227tzhFaqWEJVE6n1H0StCM1Q0H8a-yjhntvOEaPsr6rj9uQ218YIlwDiJtTl3pxMU1wDmXUgmIh5_yCAGJB_RLHjoAIXanlrRpDH7kLqvrI2cT2L2nOkAmsVPCsaWviLHckWLfFWCsk2ktAt3ollYVH7pNv0KQsBVR-lYfBeJ/s320/IMG_3476.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY7t2JPHC155UTX-6eRk2FboWhZ3bBO9NAlfFTF_rfZ6rEWOXd2ZAdvKgGlPWL1-xHw53tbagxkchkOTojvk6izyAWzYfVaHNoHe09tENC40iAMNrA8lvtLkbHrBUt5SD14DAbwb_XrlA3RW_595ciLHNjKN2NK1chTTL4ZSshv_SLorDWZpZ-JvzQ6O2F/s3264/IMG_3477.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY7t2JPHC155UTX-6eRk2FboWhZ3bBO9NAlfFTF_rfZ6rEWOXd2ZAdvKgGlPWL1-xHw53tbagxkchkOTojvk6izyAWzYfVaHNoHe09tENC40iAMNrA8lvtLkbHrBUt5SD14DAbwb_XrlA3RW_595ciLHNjKN2NK1chTTL4ZSshv_SLorDWZpZ-JvzQ6O2F/s320/IMG_3477.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUZ9ecM_DVyLQ-fRRBooD4IUOR_E59cTTJ9negHA-5eFYF2y95Z4b9EKKO1TH4QAdtC_6BdFNt6Wm1-XgfVMM2Rev4zEDaN2jcLPupQ0eu_ypDAl5gPJiQduUqx5Tl2JaP8crkg89GA5ShSG33CGtyco_RTE1pWJIyH2gHNRbCrdGYd8kvXt6ziwIIUkGf/s3264/IMG_3478.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUZ9ecM_DVyLQ-fRRBooD4IUOR_E59cTTJ9negHA-5eFYF2y95Z4b9EKKO1TH4QAdtC_6BdFNt6Wm1-XgfVMM2Rev4zEDaN2jcLPupQ0eu_ypDAl5gPJiQduUqx5Tl2JaP8crkg89GA5ShSG33CGtyco_RTE1pWJIyH2gHNRbCrdGYd8kvXt6ziwIIUkGf/s320/IMG_3478.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_87nl544WniKm3LF7BSJRWOf0GuSfA9chhrMeWZv3etwMotq3iSuF3YZ0rJBfjV9UN4uhsFc4n8_ByFvxRizsK75JNc9vfpjJcRkTcxlYK73NCA8m6dJYoPNXY5TCfAWAei7ktKqt1LTAD_YhGs5S5VRZEoCjWPF5TqkLoL7NTEwxHrdZsRxIUPymqhW1/s3264/IMG_3479.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_87nl544WniKm3LF7BSJRWOf0GuSfA9chhrMeWZv3etwMotq3iSuF3YZ0rJBfjV9UN4uhsFc4n8_ByFvxRizsK75JNc9vfpjJcRkTcxlYK73NCA8m6dJYoPNXY5TCfAWAei7ktKqt1LTAD_YhGs5S5VRZEoCjWPF5TqkLoL7NTEwxHrdZsRxIUPymqhW1/s320/IMG_3479.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">DC</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiRoqQaGXtUE7dff790qjV-3Qi3_bfGPTgcOeTJTiI-iH7qyJv7hI3hcpZLTsfrTlgfBGp-vUFKQatgO2YhcwLvKdg0RFT5ueskzOaz9trv4LgtC96YD6IOF8hf5SmQf1aX3bxuvIuHQzSwGID76v777gRH2Jt2QX3hElUuWlF6BKI5VjWMDUkm-dC4TKb/s3264/IMG_3480.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiRoqQaGXtUE7dff790qjV-3Qi3_bfGPTgcOeTJTiI-iH7qyJv7hI3hcpZLTsfrTlgfBGp-vUFKQatgO2YhcwLvKdg0RFT5ueskzOaz9trv4LgtC96YD6IOF8hf5SmQf1aX3bxuvIuHQzSwGID76v777gRH2Jt2QX3hElUuWlF6BKI5VjWMDUkm-dC4TKb/s320/IMG_3480.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN-bdkHc7eAKE9DLAPyR4Id-qAOpoUuxGb2dZM0NVxR3jNoTILZWLStnx4-ItIZGHVYxM604s1Cz7z5tZRh9LZs8IbPmCPTTaGkzyAHVPujmnb1gCCo6wL2pfw3lozqG6ibzotlSOv8RQ1AgeAN-j2X5CZt6BVgbWW9v-Fg3gnXm5MkhRy2CUDMb3yyzc4/s3264/IMG_3481.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN-bdkHc7eAKE9DLAPyR4Id-qAOpoUuxGb2dZM0NVxR3jNoTILZWLStnx4-ItIZGHVYxM604s1Cz7z5tZRh9LZs8IbPmCPTTaGkzyAHVPujmnb1gCCo6wL2pfw3lozqG6ibzotlSOv8RQ1AgeAN-j2X5CZt6BVgbWW9v-Fg3gnXm5MkhRy2CUDMb3yyzc4/s320/IMG_3481.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjl6kk_EEOumoUvqudQJNyIC44qDTDrFFf_2jCnNEPYROVIIc8FKaUtAG-iJDWTBrkOh24a6JFI3QOJ5woC9qTqtX2lIBtTPOcdwDPpVr5peAZid3ZB2sI6qIFTY_GWvqPUezfzlN8MQodOZg6vpkZHI2BIP0g6A_haYzyNEZut5E8QEHNYpHDey_PztY4K/s3264/IMG_3482.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjl6kk_EEOumoUvqudQJNyIC44qDTDrFFf_2jCnNEPYROVIIc8FKaUtAG-iJDWTBrkOh24a6JFI3QOJ5woC9qTqtX2lIBtTPOcdwDPpVr5peAZid3ZB2sI6qIFTY_GWvqPUezfzlN8MQodOZg6vpkZHI2BIP0g6A_haYzyNEZut5E8QEHNYpHDey_PztY4K/s320/IMG_3482.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1udmMF41qCFi_GDjNjcqREc8Iq83QM1H2yXhsMV2AL9qfHG-S_y8RsCtW6UVKcg0w9UWmSpS92yZt33wkNVhgHZlXnUAQQ8d-9i1oy8Xb6yAh9GWKaP8RrsQ52BUKI2-OGzjpeKYevFH66s7U1MBiFJv-tqmWKQTy3PGDNqRH4Q_p6dBKuO0AGuhFHOWS/s3264/IMG_3483.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1udmMF41qCFi_GDjNjcqREc8Iq83QM1H2yXhsMV2AL9qfHG-S_y8RsCtW6UVKcg0w9UWmSpS92yZt33wkNVhgHZlXnUAQQ8d-9i1oy8Xb6yAh9GWKaP8RrsQ52BUKI2-OGzjpeKYevFH66s7U1MBiFJv-tqmWKQTy3PGDNqRH4Q_p6dBKuO0AGuhFHOWS/s320/IMG_3483.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdLFowAW1ii2oZTzG7OdRxqn07cPw1niKJTblVAzCKoPZRmBrLncUyiR1vSMq8JxbVRIcaZ4Q8Yoq8Y7c-otKUuEYmRFX2KWvATaLa5O4GTtCHWnHEBk8GySSb-mkCN0tTb99L2ohXeq0LUlAdeqyHxOUQl0MMw6ig7M8ePoFe24lsbIsgsCsX19WoOF5Q/s3264/IMG_3484.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdLFowAW1ii2oZTzG7OdRxqn07cPw1niKJTblVAzCKoPZRmBrLncUyiR1vSMq8JxbVRIcaZ4Q8Yoq8Y7c-otKUuEYmRFX2KWvATaLa5O4GTtCHWnHEBk8GySSb-mkCN0tTb99L2ohXeq0LUlAdeqyHxOUQl0MMw6ig7M8ePoFe24lsbIsgsCsX19WoOF5Q/s320/IMG_3484.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">不錯用的好東西啊~~</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-40021310235236082672024-02-02T11:35:00.004+08:002024-02-07T09:08:23.423+08:00不同阻抗的電壓總和_消除相位移篇<div style="text-align: left;">串電感會讓電流落後又怎樣?會爆炸嗎?</div><div style="text-align: left;">這對用電戶確實不會怎樣</div><div style="text-align: left;">但對台電就會了</div><div style="text-align: left;">這件事和功率因數(PF,Power Factor)有關</div><div style="text-align: left;">詳細可以<a href="https://l0930984547.blogspot.com/2019/08/blog-post_27.html" target="_blank">先看這篇</a>,就不再多說了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">因此若電感讓電流落後使得PF下降</div><div style="text-align: left;">那再串電容補上落後的電流不就可以提高PF了</div><div style="text-align: left;">沒錯,真實世界我們確實是這麼做的</div><div style="text-align: left;">這就是所謂的電容補償</div><div style="text-align: left;">但沒實驗沒真相</div><div style="text-align: left;"><br /></div><div style="text-align: left;">我們先做一個LR的電路</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC3jm17vj_djWzAoK545zxDtiBpMHeZiPLl0-hVxtto6wquEI-9M2YXzvvF9lowPRkZ7_p9VSBeQLFe7fgUbwvLqD2YZ0ZyfLA3yy04c66YqQDBh6n8UvNKP8osXSrcNSvNagNgHo2nbDrj5BE_lgGYX9dBjsfQce-nfRIVUDcJK1DwoYZsYxyWTV8o7NC/s3264/IMG_3487.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC3jm17vj_djWzAoK545zxDtiBpMHeZiPLl0-hVxtto6wquEI-9M2YXzvvF9lowPRkZ7_p9VSBeQLFe7fgUbwvLqD2YZ0ZyfLA3yy04c66YqQDBh6n8UvNKP8osXSrcNSvNagNgHo2nbDrj5BE_lgGYX9dBjsfQce-nfRIVUDcJK1DwoYZsYxyWTV8o7NC/s320/IMG_3487.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxWsEwzF3r64z8zNLI19zMIPrDIvTnUmNtv12T9lW-fXjfiaobEqnnxa85EQ7t2FbcvIYpRtdMyXKfN1_2pSQeF6P1JpYLC04xCPhhr7bgNydWnyGRyQdqZdpxrc7nQQL-Sj72grL5f51nKZ-YvrtQqmDnmt_9KN7AVtw26NVJ9sVrIEKWXdtT9Ca5GwDA/s3264/IMG_3486.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxWsEwzF3r64z8zNLI19zMIPrDIvTnUmNtv12T9lW-fXjfiaobEqnnxa85EQ7t2FbcvIYpRtdMyXKfN1_2pSQeF6P1JpYLC04xCPhhr7bgNydWnyGRyQdqZdpxrc7nQQL-Sj72grL5f51nKZ-YvrtQqmDnmt_9KN7AVtw26NVJ9sVrIEKWXdtT9Ca5GwDA/s320/IMG_3486.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">抓出負載和VCC的波形</div><div style="text-align: left;">VCC是藍線,負載是橘線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM9bIvYPxSU0JD-ZtNJ6qSMnA-R_LKZhJ4teRnVdPvbB-7sP0_WlxyuEUJRuZinTuFUKoRIUGmaxWERXGl-XehLFlodNpj_0cVy9oWHLqmVYgsiXDr1YGvzDSc5pk6bGD9CN75gEWV1DZLzVQ4Ev8vL-PAULcJMETknhSSend7kULaUOgA1Tc_EqoJrfzw/s3264/IMG_3488.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM9bIvYPxSU0JD-ZtNJ6qSMnA-R_LKZhJ4teRnVdPvbB-7sP0_WlxyuEUJRuZinTuFUKoRIUGmaxWERXGl-XehLFlodNpj_0cVy9oWHLqmVYgsiXDr1YGvzDSc5pk6bGD9CN75gEWV1DZLzVQ4Ev8vL-PAULcJMETknhSSend7kULaUOgA1Tc_EqoJrfzw/s320/IMG_3488.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">可以看到兩者有明顯相位差</div><div style="text-align: left;">因為示波器抓的是負載,所以電流這時候反而是超前的</div><div style="text-align: left;">總之就是有相位差就對了</div><div style="text-align: left;">功率表顯示PF為0.62</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTj4ZNkI_VC1K16jkFyF1eBaLOG1QbNjddfBlA3TPrYaQ3LVeSEfRdBpQ5hdHtek22ZgchVFEqDDdrgaPzV2tu1rNKjCpMZc4JVjYCAWDgbweejtlQ5wORJyoPiuvzzcAR61vCfeR6uLcL0Zil_LX8qmRBvXb_2Vq1fVtD8zKPYrJj_ySimyUTNQPrZm8O/s3264/IMG_3489.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTj4ZNkI_VC1K16jkFyF1eBaLOG1QbNjddfBlA3TPrYaQ3LVeSEfRdBpQ5hdHtek22ZgchVFEqDDdrgaPzV2tu1rNKjCpMZc4JVjYCAWDgbweejtlQ5wORJyoPiuvzzcAR61vCfeR6uLcL0Zil_LX8qmRBvXb_2Vq1fVtD8zKPYrJj_ySimyUTNQPrZm8O/s320/IMG_3489.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這時我們在電感前再串聯電容</div><div style="text-align: left;">就可以把落後的電流補上了</div><div style="text-align: left;">正常需要串接交流電容</div><div style="text-align: left;">但我沒有那麼大容量的交流電容</div><div style="text-align: left;">所以暫時用電解電容(直流電容)先頂著</div><div style="text-align: left;">反向充電時直流電容無法放電,所以會發熱</div><div style="text-align: left;">不能串太久,只是實驗而已,看到現象就好</div><div style="text-align: left;">而且一定要低壓,交萬別接AC110</div><div style="text-align: left;">不然就要打110了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">電容需要多少是需要和電感值搭配的</div><div style="text-align: left;">若電容太小,這時電流反而會超前太多</div><div style="text-align: left;">示波器上橘線的顯示是落後(因為是抓負載的波形,還記得嗎?)</div><div style="text-align: left;">47微法,PF0.72</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4D_AWPKmY-MYV8a52q3PbxI4JjbXRHlGRQH6gSJ5ilFVULVt7nKyHyFp29wQ3dwq4CbXLwwyC8vCc_IGX5cFGiG7j89Or8Oh99EytoPxebFpLa03n1JzbXeCjXDCHCBDAcwNg7ki0yClPNn-F_0eFVsV2Nz-hGMCfhu-Rw9igh9T7KVf4EKpKFHGS7eHS/s3264/IMG_3490.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4D_AWPKmY-MYV8a52q3PbxI4JjbXRHlGRQH6gSJ5ilFVULVt7nKyHyFp29wQ3dwq4CbXLwwyC8vCc_IGX5cFGiG7j89Or8Oh99EytoPxebFpLa03n1JzbXeCjXDCHCBDAcwNg7ki0yClPNn-F_0eFVsV2Nz-hGMCfhu-Rw9igh9T7KVf4EKpKFHGS7eHS/s320/IMG_3490.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7EMq4T3nu4GLZC1gH7N38hyphenhyphen1ZL5ymd_exY5pyTA3W-ap1CX23wNOlMsW14XkopvoHXG58IxHWXbPYSoWOQECAjpAAnXdZy1cxpAey3Cd_sFljtF6nVMVrHJg9LNV-JGL1G2aekbhkgC8xwrb951wNVJZ0-kfIVeZQSr8YbWJTgQ07Ob7Q6TqaXJZK2O5a/s3264/IMG_3491.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7EMq4T3nu4GLZC1gH7N38hyphenhyphen1ZL5ymd_exY5pyTA3W-ap1CX23wNOlMsW14XkopvoHXG58IxHWXbPYSoWOQECAjpAAnXdZy1cxpAey3Cd_sFljtF6nVMVrHJg9LNV-JGL1G2aekbhkgC8xwrb951wNVJZ0-kfIVeZQSr8YbWJTgQ07Ob7Q6TqaXJZK2O5a/s320/IMG_3491.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRfU7hjIasY_vos_TASQxSzujdVrspIIryLFCvykQ7lUjtGOXolv4SA0U_q5qzemfqkhfRyckpvQ5xBgUlLby8J8ZQ_UVs_u0MPFLu7jETr4mWt9D_96FEAdUKVvKL871nCAXtdF7Yu-CSaMUrGgnl3K-EdlT2Hg14lNddwD1JdoaNK3cITzifE4uj4bnx/s3264/IMG_3492.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRfU7hjIasY_vos_TASQxSzujdVrspIIryLFCvykQ7lUjtGOXolv4SA0U_q5qzemfqkhfRyckpvQ5xBgUlLby8J8ZQ_UVs_u0MPFLu7jETr4mWt9D_96FEAdUKVvKL871nCAXtdF7Yu-CSaMUrGgnl3K-EdlT2Hg14lNddwD1JdoaNK3cITzifE4uj4bnx/s320/IMG_3492.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">所以慢慢增加電容量(直接並聯就可以了)</div><div style="text-align: left;">示波器上的橘線就會慢慢往前,最後會和藍線幾乎吻合</div><div style="text-align: left;"><div>47+22微法,PF0.89</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCX6Pdc8ot911kP44DpxRmPnmqL06QjpOVfhDHffdEhyoOSeAX0pBcyOx0AlFBRpc2O6-BKKb2WZ2SSQ_9La-4OLyRLWLURr90DzrmZ3nULAliqxXqA6ATTu0oOoAGp6SbiPdNaIO57wnN0o_p0E_hfuiqUi-P_gH0KnTG4bZ_I5xQ3oR9VPDOH8gfsdNB/s3264/IMG_3493.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCX6Pdc8ot911kP44DpxRmPnmqL06QjpOVfhDHffdEhyoOSeAX0pBcyOx0AlFBRpc2O6-BKKb2WZ2SSQ_9La-4OLyRLWLURr90DzrmZ3nULAliqxXqA6ATTu0oOoAGp6SbiPdNaIO57wnN0o_p0E_hfuiqUi-P_gH0KnTG4bZ_I5xQ3oR9VPDOH8gfsdNB/s320/IMG_3493.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEieVHzrYaTYlTDuHtksY6rLdLPTg4s6DqC-9fV31lBplX-dEaoYrCnrdQnD_0vAqpSCnBEpIlUCQa3jGK7AhcMTPBaoSLjQnM11poBwJ3Sz7gmTwMhglRVS0ZxAIMdinfCl2BnimrTjMTqh6H0BKr1mX-DF-570h88ZIjAdyof2_brDI_KP85STNTTUn9sl/s3264/IMG_3494.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEieVHzrYaTYlTDuHtksY6rLdLPTg4s6DqC-9fV31lBplX-dEaoYrCnrdQnD_0vAqpSCnBEpIlUCQa3jGK7AhcMTPBaoSLjQnM11poBwJ3Sz7gmTwMhglRVS0ZxAIMdinfCl2BnimrTjMTqh6H0BKr1mX-DF-570h88ZIjAdyof2_brDI_KP85STNTTUn9sl/s320/IMG_3494.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGIJ1GZlouiT4vqsNmR34225xAOBUqpBgAvF_4XOdMGvyf2Aq32Oxjt3dfsOYgSaw1NgVGx7vWngva8UJWZex4GNrhqznF8xz7wTx3yVr-ITQ5fv4_mC8oKy1WF3MX7XFuZDD0v-U83hKEBGmO2qZHYc1aNiMhNmhUggtvjYBoTsMjFH2bG0N65REVPRQR/s3264/IMG_3495.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGIJ1GZlouiT4vqsNmR34225xAOBUqpBgAvF_4XOdMGvyf2Aq32Oxjt3dfsOYgSaw1NgVGx7vWngva8UJWZex4GNrhqznF8xz7wTx3yVr-ITQ5fv4_mC8oKy1WF3MX7XFuZDD0v-U83hKEBGmO2qZHYc1aNiMhNmhUggtvjYBoTsMjFH2bG0N65REVPRQR/s320/IMG_3495.JPG" width="320" /></a></div><br /><div><br /></div><div>47+22+10微法,PF0.90-0.92</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3oDCY7EH68AA8B1CdKrAQH4MLBZjaEJ6DB3aUZCo7JnIxPUlw8Ays76jgcbG0akXMj2UtHX_-JI8m0V5lXNnb-nxS7payKQOS0VPrZVSbT2JrUWvOOaZ02D3cIk-QtV_e993_ARJs8d8Wztnf9ogyos7hjPJKr5cEE3c8FCID43vcpYI2m6f_9IJn7-tI/s3264/IMG_3496.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3oDCY7EH68AA8B1CdKrAQH4MLBZjaEJ6DB3aUZCo7JnIxPUlw8Ays76jgcbG0akXMj2UtHX_-JI8m0V5lXNnb-nxS7payKQOS0VPrZVSbT2JrUWvOOaZ02D3cIk-QtV_e993_ARJs8d8Wztnf9ogyos7hjPJKr5cEE3c8FCID43vcpYI2m6f_9IJn7-tI/s320/IMG_3496.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgm9XV5QG7krVYZascdsqLsXHAVpWd4sodYiPmFGF25b-qHmzNyXL9LZCjfNi6ItUelf15UdnLQSEOpH7eZMACRUEF8Tq4Quo7swr4NHTjZsbKib3MV9XPFJJGiJX0eWVXU29iNpWojlT78lK1RW2R9GTikrbc55qFRjrzIuOqt20yPJCImLvaeVf2MjmJR/s3264/IMG_3497.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgm9XV5QG7krVYZascdsqLsXHAVpWd4sodYiPmFGF25b-qHmzNyXL9LZCjfNi6ItUelf15UdnLQSEOpH7eZMACRUEF8Tq4Quo7swr4NHTjZsbKib3MV9XPFJJGiJX0eWVXU29iNpWojlT78lK1RW2R9GTikrbc55qFRjrzIuOqt20yPJCImLvaeVf2MjmJR/s320/IMG_3497.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWY7Sx9TH30bH9mjvkP8Brt1cRUYtw7W7464r11FvPWjVUb7SCZOTOmHRs2b32DI4xY3U_8LDEDTZL61g0m3yS4USNJsEwXvjsle9FpOB3hDJ0aeVdUpwCiPtcLJn9YjAVuIILsgDtQCE11hA0_cMss9HrxKH3fpQRuRSLakRXqJRpggCzT2uvuEgiH2Sq/s3264/IMG_3498.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWY7Sx9TH30bH9mjvkP8Brt1cRUYtw7W7464r11FvPWjVUb7SCZOTOmHRs2b32DI4xY3U_8LDEDTZL61g0m3yS4USNJsEwXvjsle9FpOB3hDJ0aeVdUpwCiPtcLJn9YjAVuIILsgDtQCE11hA0_cMss9HrxKH3fpQRuRSLakRXqJRpggCzT2uvuEgiH2Sq/s320/IMG_3498.JPG" width="320" /></a></div><br /><div><br /></div></div><div style="text-align: left;">功率表顯示PF,明顯提高許多了</div><div style="text-align: left;">所以要消除電感產生的相位移(功率因數下降),電容補償是絕對有效的</div><div style="text-align: left;">但如果再繼續往上補呢(補越多越好??)</div><div style="text-align: left;">橘線反而超前,就沒有效果了</div><div style="text-align: left;">220微法,PF0.72</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-qAjOb4nIhdoevnYp0QCg-SgaO2Byu6vvXc9mM5y1AlBJsDTfTzlrhDuOSBb35jk3J79lOq3WLsVmm7A4s1rbwncQtAAo6Lo-T2tmGZL6fH4zyBUO4kJH8ITZMCuL-3TGJ5-v7E_CGGlAhbqsTbDK4ROWFCrma-QN5hxK2u0RmDK5M67R_vNwF7tNvA4o/s3264/IMG_3499.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-qAjOb4nIhdoevnYp0QCg-SgaO2Byu6vvXc9mM5y1AlBJsDTfTzlrhDuOSBb35jk3J79lOq3WLsVmm7A4s1rbwncQtAAo6Lo-T2tmGZL6fH4zyBUO4kJH8ITZMCuL-3TGJ5-v7E_CGGlAhbqsTbDK4ROWFCrma-QN5hxK2u0RmDK5M67R_vNwF7tNvA4o/s320/IMG_3499.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFqrknDt80ojN1_m5iNkBQC_GFa_jCCgyRYjw-XV60AhjgNLDAXOOuddLNWSI5-63Hhne-q_yXlNwqPNOJe3Afe2hDBwFmhvQgiNmb_WTwJ-RaOEdVZgV7PhMNMhSxh7LMg9eu4WlvLLAS97UJwaumReboCUtif7p46nmUKcCGmaP95u5vEDo5aKDX_2Ph/s3264/IMG_3500.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFqrknDt80ojN1_m5iNkBQC_GFa_jCCgyRYjw-XV60AhjgNLDAXOOuddLNWSI5-63Hhne-q_yXlNwqPNOJe3Afe2hDBwFmhvQgiNmb_WTwJ-RaOEdVZgV7PhMNMhSxh7LMg9eu4WlvLLAS97UJwaumReboCUtif7p46nmUKcCGmaP95u5vEDo5aKDX_2Ph/s320/IMG_3500.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE8fBZKtvi8ENAGEE0eHQEf3TGiSrIcNPimrFCkubF0VyDr9spOz1jsasLZh8mUop-S9xV45R4FqajwK3YjC1gGg8R7uHfb0OT6woaEuBHTEYeI6nlCaxS_xSF3kt_bjYtR28nfy5PUgrE7GA7gsvFT8WszLRZ1cT5ByfvyXHSmin65F5t81YrgwNh2XkK/s3264/IMG_3501.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE8fBZKtvi8ENAGEE0eHQEf3TGiSrIcNPimrFCkubF0VyDr9spOz1jsasLZh8mUop-S9xV45R4FqajwK3YjC1gGg8R7uHfb0OT6woaEuBHTEYeI6nlCaxS_xSF3kt_bjYtR28nfy5PUgrE7GA7gsvFT8WszLRZ1cT5ByfvyXHSmin65F5t81YrgwNh2XkK/s320/IMG_3501.JPG" width="320" /></a></div><br /><div style="text-align: left;">所以事實告訴我們學校不能補過頭...</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-89539867733398672722024-02-01T09:59:00.003+08:002024-02-01T09:59:25.916+08:00倒車攝影自動切換裝置<div style="text-align: left;">用了15年的倒車小螢幕之前已經<a href="https://l0930984547.blogspot.com/2020/12/blog-post_13.html" target="_blank">修過一次燈條</a></div><div style="text-align: left;">最近又開始耍脾氣</div><div style="text-align: left;">想把他換掉</div><div style="text-align: left;">手中有以前做<a href="https://l0930984547.blogspot.com/2017/09/blog-post_18.html" target="_blank">電子放大鏡</a>留下的螢幕</div><div style="text-align: left;">我車子前後都有攝影機</div><div style="text-align: left;">平時照前面,倒車時會自動切換</div><div style="text-align: left;">但這個螢幕只有一個輸入</div><div style="text-align: left;">我不想二擇一,不然就設計一個自動切換好了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">基本概念很簡單</div><div style="text-align: left;">只要倒車時觸發一個切換開關就可以</div><div style="text-align: left;">開關就用繼電器,有NC和NO可以選擇</div><div style="text-align: left;">觸發就拉倒車燈的電源到relay的線圈就可以</div><div style="text-align: left;">電路圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpAAVJuwY_s1yxD3fD2RJiabd5MqGUAKA_8OnJRrzeFdC8l0ALkcKsXm3C0R3iTpX6BWLRqniU2RObnFsNZanAhy3_u-A4c_lcRzEJFDEP7l0JeuxnmQWquOJbvOVS4sFTk0VyUuKbdLiqE8HOx7VsttcKPWmbzogjln-aoSNfWUFfgK4Y2abeMAy2k4Am/s3264/IMG_3469.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3264" data-original-width="2448" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpAAVJuwY_s1yxD3fD2RJiabd5MqGUAKA_8OnJRrzeFdC8l0ALkcKsXm3C0R3iTpX6BWLRqniU2RObnFsNZanAhy3_u-A4c_lcRzEJFDEP7l0JeuxnmQWquOJbvOVS4sFTk0VyUuKbdLiqE8HOx7VsttcKPWmbzogjln-aoSNfWUFfgK4Y2abeMAy2k4Am/s320/IMG_3469.JPG" width="240" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">先在實驗室測試看看</div><div style="text-align: left;">果然如我預期可以自動切換</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaGHukDKvVHIB7gUG2L_lE97d3NGuZKuqcPbmvrvPGW02bUHGXHZYiHVxjg8YL7FV_0WH0xAxQ0FZ3FRVuInX8_XASqGm0XcIzWX5oGiZc0YGMTuy_UuTiwFOT77uuiA_vBz9BDfm_yWw9IfLUSW02lx__KxdCmkPESiKjIiD_V5RhcNBqXJ80n8jRB0Vu/s3264/IMG_3463.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaGHukDKvVHIB7gUG2L_lE97d3NGuZKuqcPbmvrvPGW02bUHGXHZYiHVxjg8YL7FV_0WH0xAxQ0FZ3FRVuInX8_XASqGm0XcIzWX5oGiZc0YGMTuy_UuTiwFOT77uuiA_vBz9BDfm_yWw9IfLUSW02lx__KxdCmkPESiKjIiD_V5RhcNBqXJ80n8jRB0Vu/s320/IMG_3463.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7gW719RJUqCmogUCc-b2tu18wRjm9bAOQ_qXoZTAiAuE-EpJijrMI5wiWsL59tLMfXnGlJSLE6j9BrZFY4wTohJvK5Ovl9OkKpV5L5sjyh5cxAy6JkEZ1_seMPup2WcGah3ZhxUDAhpUpvNvTv13rJ-ZSatfeGcA26B-57AN6NxLEnE4BwDFleo5z04M8/s3264/IMG_3464.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7gW719RJUqCmogUCc-b2tu18wRjm9bAOQ_qXoZTAiAuE-EpJijrMI5wiWsL59tLMfXnGlJSLE6j9BrZFY4wTohJvK5Ovl9OkKpV5L5sjyh5cxAy6JkEZ1_seMPup2WcGah3ZhxUDAhpUpvNvTv13rJ-ZSatfeGcA26B-57AN6NxLEnE4BwDFleo5z04M8/s320/IMG_3464.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDgXm7J9hAu4YWf3EJJZUhP9cmh8iIrCV2Z9mmcZLrc6AjYmOx3e78OVZWRUPSCMBkYTecGyvjZjEVqJRrxysj-nYFPctR-5tdMhuZc1Rn3KwCmu0Tq_veRRVWaVwi6MGNgh5XL6XUYRA9noHa6pnwaPPwIvzsPNN2vyNr3LcUujJ_xpZJm48HPkccBz5d/s3264/IMG_3465.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDgXm7J9hAu4YWf3EJJZUhP9cmh8iIrCV2Z9mmcZLrc6AjYmOx3e78OVZWRUPSCMBkYTecGyvjZjEVqJRrxysj-nYFPctR-5tdMhuZc1Rn3KwCmu0Tq_veRRVWaVwi6MGNgh5XL6XUYRA9noHa6pnwaPPwIvzsPNN2vyNr3LcUujJ_xpZJm48HPkccBz5d/s320/IMG_3465.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2YdHZCJWu-lpAULwvcQbc5jUKjuBCf6t3UNyyp2KoRAF1WMRiXBOB7VbVpOU_rEIGAEO6eCVDEntesyLpUehsOsNfVFlaYf5yJ36nYPpvOEZF5SsnA_ziHH_s0ett8vhCP_ZEG4TB0CDw0VjJ8jvmVHv87W3JjaLkaR5W_9-oR5bXQ-E8kmsRrro0QcZt/s3264/IMG_3466.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2YdHZCJWu-lpAULwvcQbc5jUKjuBCf6t3UNyyp2KoRAF1WMRiXBOB7VbVpOU_rEIGAEO6eCVDEntesyLpUehsOsNfVFlaYf5yJ36nYPpvOEZF5SsnA_ziHH_s0ett8vhCP_ZEG4TB0CDw0VjJ8jvmVHv87W3JjaLkaR5W_9-oR5bXQ-E8kmsRrro0QcZt/s320/IMG_3466.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYJNhMin0ePG0umRULXvN9xflllXmnWRAq6L8ud6vDcU24fH_lYRWct37LnvG8TbqztXc2kZFHG7zgT2cIgK66Sv2JL9cZ5BZZw6TwoE8mMWpA9teSeabahCUBrYPi5vHKjRS2FotSDSJXzV78niX2YNC3xACvew0arMNNvypRDfskL5IXtcRtYn7maWrC/s3264/IMG_3467.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYJNhMin0ePG0umRULXvN9xflllXmnWRAq6L8ud6vDcU24fH_lYRWct37LnvG8TbqztXc2kZFHG7zgT2cIgK66Sv2JL9cZ5BZZw6TwoE8mMWpA9teSeabahCUBrYPi5vHKjRS2FotSDSJXzV78niX2YNC3xACvew0arMNNvypRDfskL5IXtcRtYn7maWrC/s320/IMG_3467.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhoxE4zvlCWMOxLU9PVVm-kG3nmw9yJ9S31ANh4PmoS1fJEfALnJIUX4Y8z7qBKmXmS5VU6mxhKtIi1tL3ux4XfVosie816nci-mv8BRNRzL_fOPIXdNxq-mf9cG902qNH3DfczEEezZfJnghjBTJWq4EO1Tl5LIs4SXNrWvY-SQeLakhsos8c4OKBouc1/s3264/IMG_3468.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhoxE4zvlCWMOxLU9PVVm-kG3nmw9yJ9S31ANh4PmoS1fJEfALnJIUX4Y8z7qBKmXmS5VU6mxhKtIi1tL3ux4XfVosie816nci-mv8BRNRzL_fOPIXdNxq-mf9cG902qNH3DfczEEezZfJnghjBTJWq4EO1Tl5LIs4SXNrWvY-SQeLakhsos8c4OKBouc1/s320/IMG_3468.JPG" width="320" /></a></div><br /><div style="text-align: left;">影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/5TtZZf-ELic" width="320" youtube-src-id="5TtZZf-ELic"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這樣就可以換掉我的倒車螢幕了~~</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-30858712517531104632024-01-31T15:13:00.002+08:002024-02-01T10:08:56.505+08:00不同阻抗的電壓總和_相位移測量篇<div style="text-align: left;"><div><a href="https://l0930984547.blogspot.com/2024/01/blog-post_31.html" target="_blank">上一篇</a>提到交流電串接電容時,電流會超前90度</div><div><div>串接電感時,電壓會超前90度</div></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBQy3t4MxOTBdUSWhXcqYRPFhrTIhzUtYFxLrei1WAt7O3N4W8txv96HHizzLa26yXPukezEIditcqz7pzEPFSh6lTykHMAgTTKUso5AzOXcENPKRF30dWqmcU7s_6HORmPrW7W5z6XJcgSQZUIgD8sELQUOuYOuHuE9xZZhyURmvBgFUph4OXyVcIsOiH/s1126/SCN_0005-2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="870" data-original-width="1126" height="247" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBQy3t4MxOTBdUSWhXcqYRPFhrTIhzUtYFxLrei1WAt7O3N4W8txv96HHizzLa26yXPukezEIditcqz7pzEPFSh6lTykHMAgTTKUso5AzOXcENPKRF30dWqmcU7s_6HORmPrW7W5z6XJcgSQZUIgD8sELQUOuYOuHuE9xZZhyURmvBgFUph4OXyVcIsOiH/s320/SCN_0005-2.jpg" width="320" /></a></div><br /><div><br /></div><div>用示波器來看看相位</div><div>電容電壓是橘線,電源電壓是藍線</div><div>橘線超前藍線(向右為正)</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgu5pFRI0Fd6znGDgri2XhgGnTWWzx6XwJRNMACTjRzqBeTDEFDU1R34N_TjeOih6LTBDlvqbtMI9i5apRwKSU4HpnSSch1vJVtc1_AG6tnDmbCXQ-NmnYA4PyxlbgvVqOg-2qbUsJe22iKHZtqDdLMTbUUzIIW0Kw_nMXkhYZ-k7YiRitS7fR9IKu8lIu/s3264/IMG_3460.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgu5pFRI0Fd6znGDgri2XhgGnTWWzx6XwJRNMACTjRzqBeTDEFDU1R34N_TjeOih6LTBDlvqbtMI9i5apRwKSU4HpnSSch1vJVtc1_AG6tnDmbCXQ-NmnYA4PyxlbgvVqOg-2qbUsJe22iKHZtqDdLMTbUUzIIW0Kw_nMXkhYZ-k7YiRitS7fR9IKu8lIu/s320/IMG_3460.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3v5jwcTpQSTHs5OLhsWZjvJ1ZV4l__8sT6kJqFzFhrct7Ck41lmOfytBhlck-DuPYB5dBnuLW3LJ6T-bEkGkdZZmUZBR1VkHurJVdlpZkAcvGFIhpTKwgIqp4xUWCOLwDNR2rdvl6WBpWSLpH4ORNdABAOV5c7ytrgHEe8nvgujKflxYzatQ0t2r7jUU3/s3264/IMG_3461.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3v5jwcTpQSTHs5OLhsWZjvJ1ZV4l__8sT6kJqFzFhrct7Ck41lmOfytBhlck-DuPYB5dBnuLW3LJ6T-bEkGkdZZmUZBR1VkHurJVdlpZkAcvGFIhpTKwgIqp4xUWCOLwDNR2rdvl6WBpWSLpH4ORNdABAOV5c7ytrgHEe8nvgujKflxYzatQ0t2r7jUU3/s320/IMG_3461.JPG" width="320" /></a></div><br /><div><br /></div><div>但串接電感時,電感電壓是橘線,電源電壓是藍線</div><div>此時橘線落後藍線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVPJ8Zf93Bu0PR4518rRGz4Urr3xxkRDvq_aIPGd-PwQIczL1k5ALvZg6xAoVb8yrugLbjD5mnb2mk5cl5fvp5XU3Dz0lqWstBmWxOeBeU1IWZMf677JaBdaSVfyWrOS0VEPO55MbAAzPbqxoedoO7tjoQuQvkdZz14MGTo0RXVPa9nq3S7ML1u73byu6P/s3264/IMG_3458.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVPJ8Zf93Bu0PR4518rRGz4Urr3xxkRDvq_aIPGd-PwQIczL1k5ALvZg6xAoVb8yrugLbjD5mnb2mk5cl5fvp5XU3Dz0lqWstBmWxOeBeU1IWZMf677JaBdaSVfyWrOS0VEPO55MbAAzPbqxoedoO7tjoQuQvkdZz14MGTo0RXVPa9nq3S7ML1u73byu6P/s320/IMG_3458.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRm7rWErvbvyUPZUZYgWnA1ADwR9DitZO7OwlbluSZsacMhUdGFcj6w3eDByMJXdtirFukvcwHDq9ctOVSTirfx-OfbKs3PRKSe2-6ZBlPEzn6tKdREBxD2aSQbIYwvlcV7KythZJAhkLzgEo0g18pyPUMhm4Wms_-7YzK6aSJ4Ck6UrYPu_Gm2JxC4ze7/s3264/IMG_3459.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRm7rWErvbvyUPZUZYgWnA1ADwR9DitZO7OwlbluSZsacMhUdGFcj6w3eDByMJXdtirFukvcwHDq9ctOVSTirfx-OfbKs3PRKSe2-6ZBlPEzn6tKdREBxD2aSQbIYwvlcV7KythZJAhkLzgEo0g18pyPUMhm4Wms_-7YzK6aSJ4Ck6UrYPu_Gm2JxC4ze7/s320/IMG_3459.JPG" width="320" /></a></div><br /><div><br /></div><div>啊不是說交流電串接電感時,電壓會超前90度嗎!!</div><div>為甚麼橘線會落後藍線?</div><div><br /></div><div>這個問題就要回到電表的工作原理來看了</div><div>很多實際生活發生的事(不是課本的理想狀況)</div><div>如果要了解透徹,科學和工程是不能分家的</div><div><br /></div><div>不管是伏特計或安培計</div><div>基本上都是一個分流電路</div><div>儀器讀取分流出來的電流</div><div>再利用這個電流來換算電壓</div><div>細節可以<a href="https://l0930984547.blogspot.com/2019/02/blog-post_19.html" target="_blank">看這篇</a>和<a href="https://l0930984547.blogspot.com/2024/01/blog-post_16.html" target="_blank">這篇</a></div><div><br /></div><div>所以電表不管測量電壓還是電流</div><div>其實真正讀取的物理量都是「電流」</div><div>數位電表再把這個電流通過一個精密的取樣電阻換算成電壓</div><div>指針電表則是把這個電流利用磁效應變成指針偏轉</div><div>示波器基本上就是一個高速抓取資料的伏特計</div><div>因此我們必須從電流來看才是正確的</div><div><br /></div><div>串接電容,電流超前</div><div>所以橘線在前</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEfIy58Kvy8DDCDpfDy5e13EOUR3qHifizwUegMsWB_NIdOlBV-aJ5f0kHfJaqCjg2dz_GyqVT4IVoj5DD02fy2Q-UIvrq3kdhEGH5K1M2B_paPUU9jGLfV-IUXJFX8uZ-YclAitFnCHXnFJ5N1HB6BRVLERSoOh3Ebp0TRBRhb0v5qgrsA7l2z2PJXvAx/s3264/IMG_3461.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEfIy58Kvy8DDCDpfDy5e13EOUR3qHifizwUegMsWB_NIdOlBV-aJ5f0kHfJaqCjg2dz_GyqVT4IVoj5DD02fy2Q-UIvrq3kdhEGH5K1M2B_paPUU9jGLfV-IUXJFX8uZ-YclAitFnCHXnFJ5N1HB6BRVLERSoOh3Ebp0TRBRhb0v5qgrsA7l2z2PJXvAx/s320/IMG_3461.JPG" width="320" /></a></div><br /><div><br /></div><div>串接電感,電壓超前,也就是電流落後</div><div>因此橘線在後</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkJsRCUv-JC4uf_PY2P6bEz06O3bphWtJg4dqfqeXFHxFlpPrblMHcMaC4DVJaxPkQUAUvfeHlcZzVklyTxvftrdDRkXqyIpwZGzXGijPNeCiOIdm_-UYRQTZPtBeED0wLt_6z_fKFKWOQ65_Ybc5MPRaHEy1aB7U-ei-KwlQC4h7M9f_pwH6rQL1e07km/s3264/IMG_3459.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkJsRCUv-JC4uf_PY2P6bEz06O3bphWtJg4dqfqeXFHxFlpPrblMHcMaC4DVJaxPkQUAUvfeHlcZzVklyTxvftrdDRkXqyIpwZGzXGijPNeCiOIdm_-UYRQTZPtBeED0wLt_6z_fKFKWOQ65_Ybc5MPRaHEy1aB7U-ei-KwlQC4h7M9f_pwH6rQL1e07km/s320/IMG_3459.JPG" width="320" /></a></div><br /><div><br /></div><div>這樣就會符合理論的推導結果了</div><div><br /></div><div>很多儀器的設計如果不清楚</div><div>反而會在學習過程中產生反效果</div><div>這也是身為老師必須要留意的</div><div>可以再參考這篇「<a href="https://l0930984547.blogspot.com/2016/12/blog-post.html" target="_blank">這是約定俗成?還是自然原理?</a>」</div></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-81683951770888403492024-01-31T11:24:00.008+08:002024-02-01T10:09:05.745+08:00不同阻抗的電壓總和_相位移原理篇電阻串聯電容(RC circuit)或電感(RL circuit)為甚麼會產生相位差?<div>這就要回到電容和電感的特性開始說起</div><div>這件事其實已經研究了好幾年</div><div>看了幾十篇資料,但沒有一篇說得明白</div><div>大部分都是含糊帶過</div><div>其實如果沒有配合實驗,真的不容易理解</div><div>真的不要再只是搞理論和計算</div><div>這只適合天才,我們都不是啊~~</div><div><br /></div><div>電感的本質就是線圈</div><div>線圈在遇到電流變化時會產生一個感應電動勢 ε</div><div>當電流突增,感應電動勢反向生成(抵銷突增的磁場)</div><div>電流突減,感應電動勢同向生成(補足突減的磁場)</div><div>因此當電感串接在交流電上</div><div>交流電的電流會週期性的變化</div><div>電感也會產生一個週期性的感應電動勢</div><div>使得原本電源的電壓產生位移</div><div>位移的角度(相位)剛好就是90度</div><div><br /></div><div>交流電容(以下就稱電容)比較複雜</div><div>基本上可以看成兩片隔離的金屬板</div><div>可以聚集電子產生電位差</div><div>因為容量小,充電速度極快</div><div>也沒有極性的問題,不管哪一邊都可以聚集電子</div><div>因此電容在瞬間充滿電之後</div><div>就會因為外加電壓的增減釋放不同大小的電流</div><div>所以連接交流電時</div><div><div>電容也會產生一個週期性的電流</div><div>使得原本電源的電流產生位移</div><div>位移的角度(相位)剛好也是90度</div></div><div>每個時間點發生的事可以參考以下筆記</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQFt9m0q9ZS9f8D0IT0tMW5dFIb_psRskbZYoCYCXnF_GUNfzsJmP6RV2WzGMbE65Q8qnSfE74QgreBN9zXVPQjhmXd_AhazrxXLj5-5gyH8ABvnH1pfwUgkefE79Z4HnP8mTsJUUv1YzzIihwLrNZ42kmRMirAboULip2Li8kX8IEPmBcaBg3iDrpYoib/s3508/SCN_0005.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3508" data-original-width="2480" height="638" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQFt9m0q9ZS9f8D0IT0tMW5dFIb_psRskbZYoCYCXnF_GUNfzsJmP6RV2WzGMbE65Q8qnSfE74QgreBN9zXVPQjhmXd_AhazrxXLj5-5gyH8ABvnH1pfwUgkefE79Z4HnP8mTsJUUv1YzzIihwLrNZ42kmRMirAboULip2Li8kX8IEPmBcaBg3iDrpYoib/w451-h638/SCN_0005.jpg" width="451" /></a></div><br /><div><br /></div><div>因此我們可以這樣簡單結論</div><div>交流電串接電容時,電流會超前90度</div><div>交流電串接電感時,電壓會超前90度</div><div><br /></div><div>再用示波器抓電源波形和電抗(電容或電感)的波形</div><div>電容是橘線,電源是藍線</div><div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0H-b3PV3UJUCJ2JunIa0WgfB5eDsx3QTpmlcUjafUfUi2Jic78PTb3FsWyvICvgYiPC4GHMIWCRas9HlYvNw8xDQ4T-eN-_sRDTuKFd-sgWAfpw_eylem-vz4hoQMVDlUBc8xs_c_neti2aZE2VYjTexiAf-7_HoCLI44nSFYjGlhxohNiBwlHWYVeTG-/s3264/IMG_3460.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0H-b3PV3UJUCJ2JunIa0WgfB5eDsx3QTpmlcUjafUfUi2Jic78PTb3FsWyvICvgYiPC4GHMIWCRas9HlYvNw8xDQ4T-eN-_sRDTuKFd-sgWAfpw_eylem-vz4hoQMVDlUBc8xs_c_neti2aZE2VYjTexiAf-7_HoCLI44nSFYjGlhxohNiBwlHWYVeTG-/s320/IMG_3460.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpsuWmfyKgUSKGpDHmokaHYGwz8wY-F5R8tSN_S_F8WHWsPPVMQxb2OzZNt63Y-0rMdI0xTxf-9JthA19Bwt9BXPcENK3misHl_rrPyT5oPdX9EEdPluUXX8OUO3fyIdIcEQFHoKTarqkYtKlm1PNJHik3nLXA0jNkI9JHezj2uea1Be5xZ8vYB1sACtpK/s3264/IMG_3461.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpsuWmfyKgUSKGpDHmokaHYGwz8wY-F5R8tSN_S_F8WHWsPPVMQxb2OzZNt63Y-0rMdI0xTxf-9JthA19Bwt9BXPcENK3misHl_rrPyT5oPdX9EEdPluUXX8OUO3fyIdIcEQFHoKTarqkYtKlm1PNJHik3nLXA0jNkI9JHezj2uea1Be5xZ8vYB1sACtpK/s320/IMG_3461.JPG" width="320" /></a></div><br /><div><br /></div><div>電感是橘線,電源是藍線</div></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjt732tY8prUKIYPcoWqbinmQeRBxMr7vsRQI2UWA70y1WknvtPzI80eCjUxfzgEiGn_Rgs9cu-GDVZVl9BDwkhaHA1pQXkug0soeYGXRYuSay0SoWoEiPdP0VQK3lzmscV4A6r8hDxCaXCqPBNsk7VO-ep-D-seJ4vRt0GnE8cFqYu26nI0zuGk_qMGhtJ/s3264/IMG_3458.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjt732tY8prUKIYPcoWqbinmQeRBxMr7vsRQI2UWA70y1WknvtPzI80eCjUxfzgEiGn_Rgs9cu-GDVZVl9BDwkhaHA1pQXkug0soeYGXRYuSay0SoWoEiPdP0VQK3lzmscV4A6r8hDxCaXCqPBNsk7VO-ep-D-seJ4vRt0GnE8cFqYu26nI0zuGk_qMGhtJ/s320/IMG_3458.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjA5Yna4pK0IEbmYNmMvosjFS9KLe2YgtxBpdgCC-oKSe1n24b7AJ-XGy_unXPO_3yHVqdwIJJLGLQ0yKkNYwW57T8Tw1cr9Kr3MR4eHkSiDI63LfvTbyLiSRDOVs4og_l-A6uKqKlQ1RuT07AugcFaQNa8kIMfPF35VJAX_gJAEAD7eqikRcdqF35AC_YJ/s3264/IMG_3459.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjA5Yna4pK0IEbmYNmMvosjFS9KLe2YgtxBpdgCC-oKSe1n24b7AJ-XGy_unXPO_3yHVqdwIJJLGLQ0yKkNYwW57T8Tw1cr9Kr3MR4eHkSiDI63LfvTbyLiSRDOVs4og_l-A6uKqKlQ1RuT07AugcFaQNa8kIMfPF35VJAX_gJAEAD7eqikRcdqF35AC_YJ/s320/IMG_3459.JPG" width="320" /></a></div><br /><div><br /></div><div>可以觀察到串接電容時,橘線超前藍線(向右為正)</div><div>但串接電感時,橘線落後藍線</div><div>啊不是說交流電串接電感時,電壓會超前90度嗎!!</div><div>為甚麼橘線會落後藍線?</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-56267645399784285672024-01-30T12:04:00.003+08:002024-01-31T10:39:42.020+08:00不同阻抗的電壓總和_解決篇<div style="text-align: left;">有些問題只看表面很容易被誤導</div><div style="text-align: left;">電壓本身不是純量,而是向量</div><div style="text-align: left;">但因為我們太習慣用直流電的角度在思考</div><div style="text-align: left;">所以經常會忘記電壓的本質</div><div style="text-align: left;">這時候就要回到原點了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">交流電不像直流電是固定方向的</div><div style="text-align: left;">1/60秒就會轉一圈</div><div style="text-align: left;">當兩組電壓轉到同向,0度或180度</div><div style="text-align: left;">這時我們才能直接加減</div><div style="text-align: left;">若兩組電壓的方向夾角在0-90度之間時</div><div style="text-align: left;">就要用向量的方法處理了</div><div style="text-align: left;">這件事情若用合力的角度思考</div><div style="text-align: left;">大家就會比較容易理解了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">回到原本的實驗</div><div style="text-align: left;">1.阻性負載</div><div style="text-align: left;">我們利用示波器才能看到交流電在通過負載時的角度變化</div><div style="text-align: left;">紅燈是橘線,黃燈是藍線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMeaxn1P7X1IPiQcSBDW93vhOF2eAoAM9lcTFZzN-jgw8a9OFHqdHScX2cYQD-rpkiQWTZfqySqQR1UntNm3dJL17BgjJzrFakoq9gWiVIbs9_PqBbXuDLXnb3ciYZfj1J7XmJ6w0iEwjcf62qtirH569vgE4K7jIW7SjxLw3S03wZ5ifh3mMYWejmYiSv/s3264/IMG_3447.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMeaxn1P7X1IPiQcSBDW93vhOF2eAoAM9lcTFZzN-jgw8a9OFHqdHScX2cYQD-rpkiQWTZfqySqQR1UntNm3dJL17BgjJzrFakoq9gWiVIbs9_PqBbXuDLXnb3ciYZfj1J7XmJ6w0iEwjcf62qtirH569vgE4K7jIW7SjxLw3S03wZ5ifh3mMYWejmYiSv/s320/IMG_3447.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKCERBFImsuU8keqmNsRz5wNSJtGeMh3Xh4DiTKNXIlHy3FPM8PmTYqNv1OJ1bzuRjKKWVrbQil_mbuCa6IH4PxbjKrj3kCrRXNk3PRBNkhH0iC9oAFWlRvzftoocWWZI91L4_kr0MPjyayOpne_kDKmsiFrBQn394Z55HYthGkAzMjRWZB0chf23IYq5c/s3264/IMG_3448.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKCERBFImsuU8keqmNsRz5wNSJtGeMh3Xh4DiTKNXIlHy3FPM8PmTYqNv1OJ1bzuRjKKWVrbQil_mbuCa6IH4PxbjKrj3kCrRXNk3PRBNkhH0iC9oAFWlRvzftoocWWZI91L4_kr0MPjyayOpne_kDKmsiFrBQn394Z55HYthGkAzMjRWZB0chf23IYq5c/s320/IMG_3448.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">可以看到這兩組電壓的角度剛好是180度</div><div style="text-align: left;">所以我們可以直接將電壓相加剛好就會是總電壓</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHMI5XklhtVncK0AEABGh-HSjFSSE9hGQlxaEJVmF0GsSnj3kDAHt4lT2dzIqXuV_cOgBhxRzroz3VJ9sHY04nv2uin92ehTeVSQjsI38WYP4e9PG4EQhineIUR10Vm_VNCGZlwVa0gfY6jGHgz8s8cka6eoGTkDtmTK-8oq0VVVhFPwLd2SRsgbaKLeZG/s3264/IMG_3396.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHMI5XklhtVncK0AEABGh-HSjFSSE9hGQlxaEJVmF0GsSnj3kDAHt4lT2dzIqXuV_cOgBhxRzroz3VJ9sHY04nv2uin92ehTeVSQjsI38WYP4e9PG4EQhineIUR10Vm_VNCGZlwVa0gfY6jGHgz8s8cka6eoGTkDtmTK-8oq0VVVhFPwLd2SRsgbaKLeZG/s320/IMG_3396.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIam8M4QLfhx6c2tbtV-IVNb6MC31g2HO_ENP2_bNxiofhI_LzOPdfB7nB6VsgysPdvWNm9zssU72Sk_Ix1YONY_q1XlRT2nCl3arlSDPFj1gDdkf3b5CvX1zkevsYY8IXX_DfOeDwXNJxeb0pzQfGhqUv8c7wYD4PfOWR9WdzKgmM9Xu-mEQY7KwJgYuk/s3264/IMG_3397.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIam8M4QLfhx6c2tbtV-IVNb6MC31g2HO_ENP2_bNxiofhI_LzOPdfB7nB6VsgysPdvWNm9zssU72Sk_Ix1YONY_q1XlRT2nCl3arlSDPFj1gDdkf3b5CvX1zkevsYY8IXX_DfOeDwXNJxeb0pzQfGhqUv8c7wYD4PfOWR9WdzKgmM9Xu-mEQY7KwJgYuk/s320/IMG_3397.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipf2jW2klwL_aXFRizvRDIhEGe10wVIT-VOLZrdh3MEEKSBd5lPU5Eq7Kwnj5D_4Y5Dn8Xb8rFAPxdmyz3p2SXM5pwnMjB7MNVn71VSzbC7Lf3TQlaCZxQNkmnzgM6vvKr-1GnHjIUDvW5BTJZCguwaX3GexJPRY6ZJM_h3DL2kPzzNV0flZo_3qLEmhfU/s3264/IMG_3398.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipf2jW2klwL_aXFRizvRDIhEGe10wVIT-VOLZrdh3MEEKSBd5lPU5Eq7Kwnj5D_4Y5Dn8Xb8rFAPxdmyz3p2SXM5pwnMjB7MNVn71VSzbC7Lf3TQlaCZxQNkmnzgM6vvKr-1GnHjIUDvW5BTJZCguwaX3GexJPRY6ZJM_h3DL2kPzzNV0flZo_3qLEmhfU/s320/IMG_3398.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">2.感性負載</div><div style="text-align: left;">但如果我們將紅色燈泡換成5.5微法的交流電容</div><div style="text-align: left;">因為電容會吸收電壓,在電壓下降時放出電流</div><div style="text-align: left;">所以會使得電容兩側的電流和原本輸入的電流疊加後產生偏移</div><div style="text-align: left;">這時候就會變成電容兩側的電壓和燈泡兩側的電壓出現了一個角度(相位差)</div><div style="text-align: left;">這個相位差理論上會很接近90度</div><div style="text-align: left;">示波器看看</div><div style="text-align: left;">電容是橘線,黃燈是藍線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvlyS4vdza6eHPf_Idf8uT4bYJTf93KpwnlcmSu7GK47pwp6KWJqNEgTQ77YOLw3eLGrp_v3AeziE_YLFspfQlBfu8is_tEG-T1Q2zAHjDoEwIsNDWxAdoZ9UPl_Bco9rzB6yziTQQ51Yl4tsrGD8toKyk_KzVllEcyLLpQCWQM-u4QEAXPrgFvT7l2zwO/s3264/IMG_3430.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvlyS4vdza6eHPf_Idf8uT4bYJTf93KpwnlcmSu7GK47pwp6KWJqNEgTQ77YOLw3eLGrp_v3AeziE_YLFspfQlBfu8is_tEG-T1Q2zAHjDoEwIsNDWxAdoZ9UPl_Bco9rzB6yziTQQ51Yl4tsrGD8toKyk_KzVllEcyLLpQCWQM-u4QEAXPrgFvT7l2zwO/s320/IMG_3430.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkT9pRDITs7PQlYQsS2bGAEzDqA5edUtHP-BjsWoapnb5VQ5dXTXWMtHX_FKAYxerVNgMFHNSFsvctUkLOTjQZtwgBCqVVVZQUWXd6e-j2tztb3q5PYxUl6F7CtIBaUhneyztx7GCi0plXCyqmKImWFRj5tWvVit4eY0sK8RhyXEOpM5GLoMG94hqZibkx/s3264/IMG_3432.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkT9pRDITs7PQlYQsS2bGAEzDqA5edUtHP-BjsWoapnb5VQ5dXTXWMtHX_FKAYxerVNgMFHNSFsvctUkLOTjQZtwgBCqVVVZQUWXd6e-j2tztb3q5PYxUl6F7CtIBaUhneyztx7GCi0plXCyqmKImWFRj5tWvVit4eY0sK8RhyXEOpM5GLoMG94hqZibkx/s320/IMG_3432.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">所以此時我們必須用向量的方法來處理</div><div style="text-align: left;">如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4JrPfirqg5lp2Zmj9GeGYDUS1FsRoR1yxEzVCqOYmxBVocjEffQ_UVNU2gj1q3YvpyKz95PYv_KiUAWZqXvxUj0oMwVb2iuDv5-SBW2JXQZC4H1AoDDc3E9KxWmT5HidWSLK49Oi0Gd9p9G3wx4nwioIOqIXldVihmAzSg-pdfAapG0gWSi10fv6P4YD6/s3264/IMG_3453.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4JrPfirqg5lp2Zmj9GeGYDUS1FsRoR1yxEzVCqOYmxBVocjEffQ_UVNU2gj1q3YvpyKz95PYv_KiUAWZqXvxUj0oMwVb2iuDv5-SBW2JXQZC4H1AoDDc3E9KxWmT5HidWSLK49Oi0Gd9p9G3wx4nwioIOqIXldVihmAzSg-pdfAapG0gWSi10fv6P4YD6/s320/IMG_3453.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這樣得到的電壓總和115.25V就會很接近量測到的數字115.1V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgG89KRnDw1_wSneCmHLdvOptug3brDJan8ac36KYUIfa4wVe2eNM3NhT0kJ4eZBEVFLo5NDm3RbK1eUvLjwlc_9Q2_DDHSbUNixfnBMAk-361VnLubOVZNXVV1or7v10bAEOSD-rzc3NTqBjjI5jG0wWl-Ubdy_ZMBKqPOql5Zx9sY-yni8025-v8P0XT2/s3264/IMG_3394.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgG89KRnDw1_wSneCmHLdvOptug3brDJan8ac36KYUIfa4wVe2eNM3NhT0kJ4eZBEVFLo5NDm3RbK1eUvLjwlc_9Q2_DDHSbUNixfnBMAk-361VnLubOVZNXVV1or7v10bAEOSD-rzc3NTqBjjI5jG0wWl-Ubdy_ZMBKqPOql5Zx9sY-yni8025-v8P0XT2/s320/IMG_3394.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6S6wBxoJ4aMGQKbl8BzFaATfwUYiNHTVkJ17ylkX42L3YDCYPc-HDb_V6aBvsMGWOwWiJtNwbrIlNM1ioThtNuSsHQeBpkYRjs56jf_FDqw_POsrYaCRafzQfliQroXDW9Ltdt8oMhach3z57GvbYDrf8RJevDEswHmo23GsLr_BblGBQpfTYIEBQtz1i/s3264/IMG_3395.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6S6wBxoJ4aMGQKbl8BzFaATfwUYiNHTVkJ17ylkX42L3YDCYPc-HDb_V6aBvsMGWOwWiJtNwbrIlNM1ioThtNuSsHQeBpkYRjs56jf_FDqw_POsrYaCRafzQfliQroXDW9Ltdt8oMhach3z57GvbYDrf8RJevDEswHmo23GsLr_BblGBQpfTYIEBQtz1i/s320/IMG_3395.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaD8CN_Vnts-fPJEh01qMUnpoatYsCx2tCRETJHBgzi5chh8kbk8KgYjBx7YqRDB1cWHXVQbQYAr2VXzKFmM3sQQmIqRw3qMRnzqPRJyUrK-7l-wWPqmMNrgbRVwOAr4zArCrERhx0Jt3iLbhtq_xRQ2xwynuKlQgMsb2lMXmDnWStfJSF1TjEARPrIlPD/s3264/IMG_3399.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaD8CN_Vnts-fPJEh01qMUnpoatYsCx2tCRETJHBgzi5chh8kbk8KgYjBx7YqRDB1cWHXVQbQYAr2VXzKFmM3sQQmIqRw3qMRnzqPRJyUrK-7l-wWPqmMNrgbRVwOAr4zArCrERhx0Jt3iLbhtq_xRQ2xwynuKlQgMsb2lMXmDnWStfJSF1TjEARPrIlPD/s320/IMG_3399.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">3.感性負載1</div><div style="text-align: left;">如果我們將紅色燈泡換成70mH的電感</div><div style="text-align: left;">同樣的,電感會因為電流的變化產生同向或反向的感應電動勢</div><div style="text-align: left;">這個感應電動勢灌入電源後也會在電感兩側產生偏移</div><div style="text-align: left;"><div>這時候電感兩側的電壓和燈泡兩側的電壓也出現了一個角度(相位差)</div><div>同樣很接近90度</div><div>示波器看看</div><div>電感是橘線,黃燈是藍線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3R5WIc6LaVdVgfyRLXmFGMQWMXYlESFikqbD_n9GxwBF8GNjlNXr3dXO3siiLp5r08a30tISCce_oSY7HkK12vi7wXNGiXBDQ44lo7MHaHNXeIL3G_W9NBgjYqumX50UfmULDMDlM9Yysr4R29DwWXpM2CuwjNwNft3cItsV1TAfJy0-uEwBb9_VOehli/s3264/IMG_3427.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3R5WIc6LaVdVgfyRLXmFGMQWMXYlESFikqbD_n9GxwBF8GNjlNXr3dXO3siiLp5r08a30tISCce_oSY7HkK12vi7wXNGiXBDQ44lo7MHaHNXeIL3G_W9NBgjYqumX50UfmULDMDlM9Yysr4R29DwWXpM2CuwjNwNft3cItsV1TAfJy0-uEwBb9_VOehli/s320/IMG_3427.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBFPU6CYQZutQV2zw45wF5K9p9ZC6RQSbxEQAY390luYnqBnfiFUVHHY_RdKF94Pq5Z196c_5vcUJlaK6D1WNuFkydtLFoVnpTAd0VFZ0MHTx3ZI0tZ0embIKVHqA1RCMGGNoHnyl2IOxCdVZgnQqUtaIOWqrjmWYMN9ko45nS135Sk6IWliyMQX4ImW6K/s3264/IMG_3429.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBFPU6CYQZutQV2zw45wF5K9p9ZC6RQSbxEQAY390luYnqBnfiFUVHHY_RdKF94Pq5Z196c_5vcUJlaK6D1WNuFkydtLFoVnpTAd0VFZ0MHTx3ZI0tZ0embIKVHqA1RCMGGNoHnyl2IOxCdVZgnQqUtaIOWqrjmWYMN9ko45nS135Sk6IWliyMQX4ImW6K/s320/IMG_3429.JPG" width="320" /></a></div><br /><div><br /></div><div>相同的方法計算,電壓向量總和是114.13V</div><div>量測值是114.3V</div><div><br /></div><div>若用安定器加LED燈那組實驗來看</div><div>電感是橘線,黃燈是藍線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqRDj_MTLp1mDVqUMfaMyXNp_bY23D_22uXTX-gqm3TdmqZlZCFmZPNmAQnPfEyhATIFmznNwgGNPA3VXmeA-oS1O-qZCrJ9mt7q7at4KK1D1zKRnXFWx0P7X3HZoJXPT4lpegxTHpL2fsCvJ9IdzvmdylA1SuDq1Lvr25SppOiJl3ZuNHhOYUdFm3IuVv/s3264/IMG_3439.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqRDj_MTLp1mDVqUMfaMyXNp_bY23D_22uXTX-gqm3TdmqZlZCFmZPNmAQnPfEyhATIFmznNwgGNPA3VXmeA-oS1O-qZCrJ9mt7q7at4KK1D1zKRnXFWx0P7X3HZoJXPT4lpegxTHpL2fsCvJ9IdzvmdylA1SuDq1Lvr25SppOiJl3ZuNHhOYUdFm3IuVv/s320/IMG_3439.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_-cEc01mkw9O7UkU72MC9I2vnw8coT2woMueU67dmiDgLOwH9RytZLI4xs_WOcqL_RaHvkXluBUwm1CIYkdMnR_GMEcgDtSIiXXfuKVfavhWLJoM836h0voxuXEpFLmpS7fABgBy053k9BnkCk7t7JtnCgeEnYvTB3EzvNmJqGdXQTbZUOvKSOFZDcAx7/s3264/IMG_3442.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_-cEc01mkw9O7UkU72MC9I2vnw8coT2woMueU67dmiDgLOwH9RytZLI4xs_WOcqL_RaHvkXluBUwm1CIYkdMnR_GMEcgDtSIiXXfuKVfavhWLJoM836h0voxuXEpFLmpS7fABgBy053k9BnkCk7t7JtnCgeEnYvTB3EzvNmJqGdXQTbZUOvKSOFZDcAx7/s320/IMG_3442.JPG" width="320" /></a></div><br /><div><br /></div><div>也是接近90度的相位差</div><div>但因為LED燈管內部有電源板的關係,波形產生明顯的波動</div><div>但還是保持有正弦波的外觀</div><div>電壓向量總合為114.25V</div><div>量測值是114.7V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUlUBAJ7QOegR5VLiE3L3lNvkDaDA8ZOCsBQakRaA0fIVJEz2TIPWKkWLs1aknJGZ-AN1rEQDk-vo01t4AzrquPNkl8GewFqqB5isazgq7YQ0EnY56Cs4VUkNIokOy46ZFrY5bG84nP3M4ujDP6FUoOxvnd5J-vJbKGTLRSbVgPaO-_QK1HbqW39Jv5oQh/s3264/IMG_3403.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUlUBAJ7QOegR5VLiE3L3lNvkDaDA8ZOCsBQakRaA0fIVJEz2TIPWKkWLs1aknJGZ-AN1rEQDk-vo01t4AzrquPNkl8GewFqqB5isazgq7YQ0EnY56Cs4VUkNIokOy46ZFrY5bG84nP3M4ujDP6FUoOxvnd5J-vJbKGTLRSbVgPaO-_QK1HbqW39Jv5oQh/s320/IMG_3403.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcLfwojPMXZbyn_z6CTBaPQU_2PMuIOuG2XH_y4wMFPUs6rbxLhPA1Tq8vjD8fsM-gl07H6kW7VRwi-62a8ydPXKqQdS41nHzsLO091uVfUyht_zT2H1v45X-pEsz7emVrQ8jvBKb3ttQZBwKzsxGtjkIMSVvGTwre5NL9nTPAyZuPhSBGJes0n0gQT1au/s3264/IMG_3404.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcLfwojPMXZbyn_z6CTBaPQU_2PMuIOuG2XH_y4wMFPUs6rbxLhPA1Tq8vjD8fsM-gl07H6kW7VRwi-62a8ydPXKqQdS41nHzsLO091uVfUyht_zT2H1v45X-pEsz7emVrQ8jvBKb3ttQZBwKzsxGtjkIMSVvGTwre5NL9nTPAyZuPhSBGJes0n0gQT1au/s320/IMG_3404.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQOPskjEd5itQPsScsz_1Uf5Bs4ChJkDWMOmLRlvQugApGwS_0VUT3Tf8zwZHul64ufizivQnCqwqQ4_-m8ZfJi0gpDRn93tkYVBFmZS96vv24tklh-MvB3ls7640Zq1AL-hPtRFqS0x7BJPJPyOPstwUvIu3vzPSJ1IS-w0sPhMltTo721ymPm4idGUg0/s3264/IMG_3405.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQOPskjEd5itQPsScsz_1Uf5Bs4ChJkDWMOmLRlvQugApGwS_0VUT3Tf8zwZHul64ufizivQnCqwqQ4_-m8ZfJi0gpDRn93tkYVBFmZS96vv24tklh-MvB3ls7640Zq1AL-hPtRFqS0x7BJPJPyOPstwUvIu3vzPSJ1IS-w0sPhMltTo721ymPm4idGUg0/s320/IMG_3405.JPG" width="320" /></a></div><br /><div><br /></div><div><br /></div><div>4.感性負載2</div><div>但能這樣用向量計算必須是標準(至少也要接近)正弦波才可以</div><div>有些負載因為某些原因產生電位差不穩定的情況</div><div>這時就會比較麻煩了</div><div>以普通日光燈來看</div><div>因為日光燈管是氣體放電,電壓會隨著內部氣體的阻值變化</div><div>因此出來的波形很醜...</div><div><div>電感是橘線,日光燈是藍線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4Gz4wfWE73fHdf3e_4RClAXMafTE1hP5kexdnvlpIXOKT7XYlmeEapTZ_sEbER5jR8FuAD9_EBWTyUjkyLATLVDfDhAzYhpGdaTV_kni_MA5YWEoZJj3erAJtPIsLj4kx7Z56UXgbT3j5HL3Qhz5x8b6WahLtM1HPa_QEEF3Teknwz3qN0TMJYVAf1nQ8/s3264/IMG_3437.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4Gz4wfWE73fHdf3e_4RClAXMafTE1hP5kexdnvlpIXOKT7XYlmeEapTZ_sEbER5jR8FuAD9_EBWTyUjkyLATLVDfDhAzYhpGdaTV_kni_MA5YWEoZJj3erAJtPIsLj4kx7Z56UXgbT3j5HL3Qhz5x8b6WahLtM1HPa_QEEF3Teknwz3qN0TMJYVAf1nQ8/s320/IMG_3437.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUt7H9fwStf7etjp8-cFbJDspozK1wYIrB_q2TGQVI46kKfUqluOiO_PVSO9MW_XpCOb5Zni3DePzlH4gLaoB2s2xpFA9vMJYMn7bEgzYRWtwZqKTpOGN_jzokyY3tENdOKTimOBi9O4WmCt_MldXnTkTi-l1jafHtYgcbA-vuARPfxUiXWO7Q4HC5otas/s3264/IMG_3438.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUt7H9fwStf7etjp8-cFbJDspozK1wYIrB_q2TGQVI46kKfUqluOiO_PVSO9MW_XpCOb5Zni3DePzlH4gLaoB2s2xpFA9vMJYMn7bEgzYRWtwZqKTpOGN_jzokyY3tENdOKTimOBi9O4WmCt_MldXnTkTi-l1jafHtYgcbA-vuARPfxUiXWO7Q4HC5otas/s320/IMG_3438.JPG" width="320" /></a></div><br /><div>日光燈的波形已經接近方波了</div><div>雖然感覺上也是接近90度的相位差</div></div><div>但直接計算電壓向量總合為104.58V</div><div>量測值是114.9V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5qJLU57yjzm8m08r1QrtoBW_lsBpI70SPuEmKvPRMBJNmzk7Khkrpyg6wWngN-uL5zjV3PRdmZRGEXBltvxfZNVM0gdPkp7nx967bHH_3dVDCammSYbpqXyjlqgb-AXjjBCefd6cTtoe37ls98hf76tY2qpki5ic4Y6ba5rTwED2kVh_GVj1xtzR-hcdp/s3264/IMG_3400.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5qJLU57yjzm8m08r1QrtoBW_lsBpI70SPuEmKvPRMBJNmzk7Khkrpyg6wWngN-uL5zjV3PRdmZRGEXBltvxfZNVM0gdPkp7nx967bHH_3dVDCammSYbpqXyjlqgb-AXjjBCefd6cTtoe37ls98hf76tY2qpki5ic4Y6ba5rTwED2kVh_GVj1xtzR-hcdp/s320/IMG_3400.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjoCsesN60ptCn_gMRnU9q-VBzVuMZ2KdbjgoAYXo3JgQR-rRtFso4HzA_clcGSsk2omSLPzsyDgh55IXOnl7VqLlL7XOdLfIjujqGynvsJIY8uAmUwU1HdQMdSGV9tCRCjPwT141Zg9uK_G4toSHAHGHEk6kmBpGVZn0AvFWGK-WC91pkZqj5vj8ON17Q9/s3264/IMG_3401.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjoCsesN60ptCn_gMRnU9q-VBzVuMZ2KdbjgoAYXo3JgQR-rRtFso4HzA_clcGSsk2omSLPzsyDgh55IXOnl7VqLlL7XOdLfIjujqGynvsJIY8uAmUwU1HdQMdSGV9tCRCjPwT141Zg9uK_G4toSHAHGHEk6kmBpGVZn0AvFWGK-WC91pkZqj5vj8ON17Q9/s320/IMG_3401.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYJHtW624oiGwjL5BL31jQp-NoYz3sHfO7EOIkVkWmMb-ZKFN3k1duuh-dPnLuSlOMctexvGa5k4JkCAhxX8bSCSox58QCH9iL94QUK03jLSbxr308147h_WquU8eB04m93L27yR-UVlk-_e7QB9lHoQ9BBtolzFDa3JVQZV5D0F3nqc69kKfo3fdajbWG/s3264/IMG_3402.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYJHtW624oiGwjL5BL31jQp-NoYz3sHfO7EOIkVkWmMb-ZKFN3k1duuh-dPnLuSlOMctexvGa5k4JkCAhxX8bSCSox58QCH9iL94QUK03jLSbxr308147h_WquU8eB04m93L27yR-UVlk-_e7QB9lHoQ9BBtolzFDa3JVQZV5D0F3nqc69kKfo3fdajbWG/s320/IMG_3402.JPG" width="320" /></a></div><br /><div><br /></div><div>人生好難啊~~</div><div>我為什麼要在放假時搞這些</div></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-3476508332805485622024-01-29T11:04:00.003+08:002024-01-29T11:07:22.579+08:00不同阻抗的電壓總和_問題篇<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNX9NqQ0-m_eoLI0fLSn9gCSW50HRF3ikG2ZpRbde3ealznSDvNmZtIO8Zl0QfJF7dCFLo8pLFYbHnD_09MTOoXYdkEc97RGfGYe2kvmhZqQHKBb4CxvKW1U7IrnN3MCY0DkDBOlmvJhinPyGIEugWPKWhq_jt-0gprpSHBqUtyywx4Daec0cCNrawkEUN/s3264/IMG_3433.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNX9NqQ0-m_eoLI0fLSn9gCSW50HRF3ikG2ZpRbde3ealznSDvNmZtIO8Zl0QfJF7dCFLo8pLFYbHnD_09MTOoXYdkEc97RGfGYe2kvmhZqQHKBb4CxvKW1U7IrnN3MCY0DkDBOlmvJhinPyGIEugWPKWhq_jt-0gprpSHBqUtyywx4Daec0cCNrawkEUN/s320/IMG_3433.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這個簡單的串聯問題如果放在交流電系統</div><div style="text-align: left;">可能會搞死人了~~</div><div style="text-align: left;">我們一般認知的阻抗(impedance)就是電阻</div><div style="text-align: left;">但實際上在電路中會產生阻抗的原因還有容抗和感抗(合稱電抗)</div><div style="text-align: left;">細節可以<a href="https://l0930984547.blogspot.com/2019/10/blog-post_9.html" target="_blank">看這篇</a></div><div style="text-align: left;">因此在討論以上負載電壓總合的問題</div><div style="text-align: left;">尤其是在AC系統時,負載的種類就非常重要了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">1.阻性負載</div><div style="text-align: left;">我們串聯兩個一般燈泡,分別量測兩端電壓與總電壓</div><div style="text-align: left;">黃燈泡電壓42.03V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsdO_P9AyET42p-T9SW1EdTzF8ij5L9VD0HgO-IYzzGHYNgieaqXK855Q5dYnREfdKhng1StsxtTwzoqlhPeK3m_3myZUnoecCxFdvGrMYAYy1c-zVzvP5T0PTAgH8dUigeVfySPswVG7xIn8WjRXvv0SjT0KVjSUn8OG0SiLMJ1J4PeziN8IiAG4Me_UH/s3264/IMG_3397.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsdO_P9AyET42p-T9SW1EdTzF8ij5L9VD0HgO-IYzzGHYNgieaqXK855Q5dYnREfdKhng1StsxtTwzoqlhPeK3m_3myZUnoecCxFdvGrMYAYy1c-zVzvP5T0PTAgH8dUigeVfySPswVG7xIn8WjRXvv0SjT0KVjSUn8OG0SiLMJ1J4PeziN8IiAG4Me_UH/s320/IMG_3397.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">紅燈泡電壓73.52V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcQGm2dfL3YzdD8Uccf5vEi9F0-mNadfq80Z91bO1cIJhCswDpQrOZ_dt9YRYbUVU54a4AVURluJ4x2JkP3g9TzMK8QMpT_H-cIOEb6Pfp11I7ob20r939EPyzgg_XiXvfAVSw4SwhWmf2SGf8e_uWb898-Z6cwzAy5Apsq8q6AOF4WyCs00gVxOnO1_Z2/s3264/IMG_3396.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcQGm2dfL3YzdD8Uccf5vEi9F0-mNadfq80Z91bO1cIJhCswDpQrOZ_dt9YRYbUVU54a4AVURluJ4x2JkP3g9TzMK8QMpT_H-cIOEb6Pfp11I7ob20r939EPyzgg_XiXvfAVSw4SwhWmf2SGf8e_uWb898-Z6cwzAy5Apsq8q6AOF4WyCs00gVxOnO1_Z2/s320/IMG_3396.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">總電壓115.5V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkGThpgDq7xlTfOS3Tct5PfKnM37dwiuCrNx0NhV64ubkSm6I168VEnM51ieAiuuhE_nCDnta54ogFUzeYUqwwz7BzpZl3FAApdwiFxOAc78lWf_Mb334aG5Sv6a6vIFZo0ikM8SY5mTGX4LTPS3r0oN8ccssXycUULyiLVbmgPKeuLtipphhW-1X13kjc/s3264/IMG_3398.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkGThpgDq7xlTfOS3Tct5PfKnM37dwiuCrNx0NhV64ubkSm6I168VEnM51ieAiuuhE_nCDnta54ogFUzeYUqwwz7BzpZl3FAApdwiFxOAc78lWf_Mb334aG5Sv6a6vIFZo0ikM8SY5mTGX4LTPS3r0oN8ccssXycUULyiLVbmgPKeuLtipphhW-1X13kjc/s320/IMG_3398.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">結果就如同我們預期(世界真美好)</div><div style="text-align: left;">42.03+73.52=115.55</div><div style="text-align: left;"><br /></div><div style="text-align: left;">2.容性負載</div><div style="text-align: left;">若將交流電容和燈泡串聯</div><div style="text-align: left;">電容電壓58.44V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhD2QRPhNFsZOgIdR8gIKzxmOAMJbVj6T_yKX2M7uwujbR6ISbvN0dnVaQEwcoJabZ4W0-hb_cBQRhjXlN_fLfJSbhcLLIi0gTWIMidDnezmdennnYQdejJCHaeb3aOBZcM1QT1CidA9JvI3fZBOinNratXoTqdEHp6OQMoW35ZwdqAe0DxfI-T-7B182HK/s3264/IMG_3394.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhD2QRPhNFsZOgIdR8gIKzxmOAMJbVj6T_yKX2M7uwujbR6ISbvN0dnVaQEwcoJabZ4W0-hb_cBQRhjXlN_fLfJSbhcLLIi0gTWIMidDnezmdennnYQdejJCHaeb3aOBZcM1QT1CidA9JvI3fZBOinNratXoTqdEHp6OQMoW35ZwdqAe0DxfI-T-7B182HK/s320/IMG_3394.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">燈泡電壓99.34V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQZGsQmPO_QTMT1I3ZNYCNQE3PC_MXM77UyTVx5x98g37JczzgOh3FZTRYiIN1jM2ezqU9xdN5A6YhpNIjd0NwM_4EDYttOzOkm6qqRCq27lOa6deAj8BE8WH3vJQC_vjOFiC9Ro5woiE3rf7rB_6WajgySYMlWL97RkvAi2C0wbWivd3YQ2rnoQcBi0JA/s3264/IMG_3395.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgQZGsQmPO_QTMT1I3ZNYCNQE3PC_MXM77UyTVx5x98g37JczzgOh3FZTRYiIN1jM2ezqU9xdN5A6YhpNIjd0NwM_4EDYttOzOkm6qqRCq27lOa6deAj8BE8WH3vJQC_vjOFiC9Ro5woiE3rf7rB_6WajgySYMlWL97RkvAi2C0wbWivd3YQ2rnoQcBi0JA/s320/IMG_3395.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">總電壓115.1V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9Vyv9kWywx1a20eLc_FMB0UkxYnuQmoQGtOxWGVM8rNhlD8SU47vKqfWcQFzPsT2liuoFnv3q7HpMXnPC__K64txNB_aEqW26Sn7LpsXC40_iWK4UXtopZc2A7npbeSPnWXjmz9g_Uxpdz-9PDMhFxlaHGfn9AadR1fvIFnanxM7GpLYr_9KFwrm5AC4U/s3264/IMG_3399.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9Vyv9kWywx1a20eLc_FMB0UkxYnuQmoQGtOxWGVM8rNhlD8SU47vKqfWcQFzPsT2liuoFnv3q7HpMXnPC__K64txNB_aEqW26Sn7LpsXC40_iWK4UXtopZc2A7npbeSPnWXjmz9g_Uxpdz-9PDMhFxlaHGfn9AadR1fvIFnanxM7GpLYr_9KFwrm5AC4U/s320/IMG_3399.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">馬上就打回現實世界了~~</div><div style="text-align: left;">負載電壓相加比總電壓還大?</div><div style="text-align: left;">58.44+99.34=157.78</div><div style="text-align: left;"><br /></div><div style="text-align: left;">3.感性負載1</div><div style="text-align: left;"><div>若將電感(線圈)和燈泡串聯</div><div>電感電壓2.557V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgB-rWPww1BL1qJwQbt5TU5WHt2ErH1xWdM2SfBJF7AsiuFhyBdCDVYB8GRIvnsMK_t93CY_8K3n2eok5DGS9gSqdTitlKE41_NdIprvP_OMnypi7LX1F8NzjFXc9Evbo3wZ_z95cIbfLtWeAgNuwrvvx_ZfmMo7_T9l7036sViLJOg63ZovHdoLUtgugRK/s3264/IMG_3425.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgB-rWPww1BL1qJwQbt5TU5WHt2ErH1xWdM2SfBJF7AsiuFhyBdCDVYB8GRIvnsMK_t93CY_8K3n2eok5DGS9gSqdTitlKE41_NdIprvP_OMnypi7LX1F8NzjFXc9Evbo3wZ_z95cIbfLtWeAgNuwrvvx_ZfmMo7_T9l7036sViLJOg63ZovHdoLUtgugRK/s320/IMG_3425.JPG" width="320" /></a></div><br /><div><br /></div><div>燈泡電壓114.1V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0g5MkXpdU33Yr8YzxTSlYEyLvV6o8ZbCBYrguFBamdfeophkIRDSIg-1oNNfpuoA6pSoYQJH-30kja-bTWnaEGAWNbzVc0auCE1fCXYZrKaK89g6Q6G_mjpsZ3Oi17S8HoxN1y3XXCcMKD0UU4ussYhbKYkYsQNIF3EDhG_4MehaT1YIjPog_fa_wpDEd/s3264/IMG_3426.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0g5MkXpdU33Yr8YzxTSlYEyLvV6o8ZbCBYrguFBamdfeophkIRDSIg-1oNNfpuoA6pSoYQJH-30kja-bTWnaEGAWNbzVc0auCE1fCXYZrKaK89g6Q6G_mjpsZ3Oi17S8HoxN1y3XXCcMKD0UU4ussYhbKYkYsQNIF3EDhG_4MehaT1YIjPog_fa_wpDEd/s320/IMG_3426.JPG" width="320" /></a></div><br /><div><br /></div><div>總電壓114.3V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGLjibRKFZQu4ZWwfh5v7yRl9i7_Chk3Zkq45p6mKPjHNfrlpadc7pSR89M3xJoXLKnGocxieFoK5RML8nju86zErWVpJ7adjg2pgloxvtk-eUfuQNVet36K6minCY4Es3qhae5OOMxaSaBFFevQba7H9Hsk4n12m-BrT2OV5AP53ldqBRnuhe8_zIe57d/s3264/IMG_3424.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGLjibRKFZQu4ZWwfh5v7yRl9i7_Chk3Zkq45p6mKPjHNfrlpadc7pSR89M3xJoXLKnGocxieFoK5RML8nju86zErWVpJ7adjg2pgloxvtk-eUfuQNVet36K6minCY4Es3qhae5OOMxaSaBFFevQba7H9Hsk4n12m-BrT2OV5AP53ldqBRnuhe8_zIe57d/s320/IMG_3424.JPG" width="320" /></a></div><br /><div><br /></div><div>結果和串聯電容一樣,都比總電壓還大</div></div><div style="text-align: left;">2.557+114.3=116.857</div><div style="text-align: left;"><br /></div><div style="text-align: left;">4.感性負載2</div><div style="text-align: left;">上面的實驗感覺上差距不大</div><div style="text-align: left;">也許有人會覺得是測量的誤差</div><div style="text-align: left;">我們再看看以下的組合</div><div style="text-align: left;">將安定器(電感)和LED燈管串聯</div><div style="text-align: left;">電感電壓26.24V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD2lqkbl8yb40oYKNpexv5P27BZWANjx2Wydqyfwww06T9S6vXOciRqkt29cCvEgwy4OjzAjKXzPqalapgX4SLpjiOH7R3go9I45EjGcHrG7DEgRheuCkR9C_27Tr754OhRR-FvCL6zMFsEe9D_sdYrThxQx_WFJtqpnuj2NS8IJ8JbGpFO9GNd-ZncEPg/s3264/IMG_3404.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD2lqkbl8yb40oYKNpexv5P27BZWANjx2Wydqyfwww06T9S6vXOciRqkt29cCvEgwy4OjzAjKXzPqalapgX4SLpjiOH7R3go9I45EjGcHrG7DEgRheuCkR9C_27Tr754OhRR-FvCL6zMFsEe9D_sdYrThxQx_WFJtqpnuj2NS8IJ8JbGpFO9GNd-ZncEPg/s320/IMG_3404.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><div style="text-align: left;">燈管電壓111.2V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhA63jyidMlNoWjMWaNwJ0p43drJjU8uEw882fRjYHEp6ANKf9GWuSYjWf9n39kAl3vQFv_dLAQSYhPXZBk5wg8bapWtL04X2_GJUQ99fXE7LjL4biP42-jPTD4NoQGcgSx-m89oTLnJj21ZZFUuFVMGxTCAfb_uQct45lpfRB4OiN1iZ3u16mmU_0QVhR4/s3264/IMG_3403.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhA63jyidMlNoWjMWaNwJ0p43drJjU8uEw882fRjYHEp6ANKf9GWuSYjWf9n39kAl3vQFv_dLAQSYhPXZBk5wg8bapWtL04X2_GJUQ99fXE7LjL4biP42-jPTD4NoQGcgSx-m89oTLnJj21ZZFUuFVMGxTCAfb_uQct45lpfRB4OiN1iZ3u16mmU_0QVhR4/s320/IMG_3403.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><div style="text-align: left;">總電壓114.7V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1C_uN5DYuG1a8IBtE_ZtD3cTQ0FN__tiumPqXeM7WMC2l9HI0xdIhX82O6BvPgCse5DBIShWlLp0HpEULvW4RV4MV2ytZlXWlRtMXcSncd2AEk5x7XDrKVyu7NI9SscxFYUQOHnV26GDdi7QlLbYAiPQkCd-tzmziLwNmRrv2WCYeVLdCnTAiqnFYfpZz/s3264/IMG_3405.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1C_uN5DYuG1a8IBtE_ZtD3cTQ0FN__tiumPqXeM7WMC2l9HI0xdIhX82O6BvPgCse5DBIShWlLp0HpEULvW4RV4MV2ytZlXWlRtMXcSncd2AEk5x7XDrKVyu7NI9SscxFYUQOHnV26GDdi7QlLbYAiPQkCd-tzmziLwNmRrv2WCYeVLdCnTAiqnFYfpZz/s320/IMG_3405.JPG" width="320" /></a></div><br /><div style="text-align: left;">26.24+111.2=137.44</div><div style="text-align: left;">依舊比總電壓114.7V大了許多!!</div><div style="text-align: left;"><br /></div><div style="text-align: left;">這個結果有符合大家預期嗎?</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-79280298800917073702024-01-27T17:09:00.005+08:002024-01-27T17:09:56.575+08:00電線裡的寄生電容_DC篇<div style="text-align: left;">我們的AC基本上就是從台電來的</div><div style="text-align: left;">台電在發電時就是以大地當作參考電位(零電位)</div><div style="text-align: left;">因此火線對地一定有電位差</div><div style="text-align: left;">詳細請<a href="https://l0930984547.blogspot.com/2024/01/ac.html" target="_blank">參考AC篇</a></div><div style="text-align: left;">但如果是DC,情況就會複雜許多了</div><div style="text-align: left;">因為我們的DC至少可以有四種來源</div><div style="text-align: left;">1.隔離式:AC線性變壓(linear mode)轉DC</div><div style="text-align: left;">2.隔離式:AC開關變壓(switch mode)轉DC</div><div style="text-align: left;">3.非隔離式:容抗降壓轉DC</div><div style="text-align: left;">4.化學電池DC</div><div style="text-align: left;"><br /></div><div style="text-align: left;">先來看第3、4種比較簡單</div><div style="text-align: left;">3.非隔離式:容抗降壓轉DC</div><div style="text-align: left;">如下示意圖</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvoQNeBhDBij-dApJIWr90aFZnTqeevUwYTlXq-thqSj6JAUmJqsGjsGedsmer61qiGzm9aH0rQ2ARt6LCURM2On9buq6QzryrLiukp1wtjsXIwpLomERtQJ2vKfPlJZqO0sp3lN4iiLOmQEJ1fBDzWlHEZjS8xJvHfjpllhx81bp9OJfHxRgeAJG9mUsc/s3264/IMG_3387.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvoQNeBhDBij-dApJIWr90aFZnTqeevUwYTlXq-thqSj6JAUmJqsGjsGedsmer61qiGzm9aH0rQ2ARt6LCURM2On9buq6QzryrLiukp1wtjsXIwpLomERtQJ2vKfPlJZqO0sp3lN4iiLOmQEJ1fBDzWlHEZjS8xJvHfjpllhx81bp9OJfHxRgeAJG9mUsc/s320/IMG_3387.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">基本上非隔離式整流出來的DC,能量來源還是"直接"從火線</div><div style="text-align: left;">所以用非隔離式的DC,不管是正極還是負極其實對地都還是有電位</div><div style="text-align: left;">以這個非隔離電源(已有電容濾波)來說</div><div style="text-align: left;">正負極電位差約161V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3_l_wTyGpxCRckEpzdqJQoeU4shlWRZ-B7nnBLEIFbABX_4vx1A8wtJIro7I7SydDuqn7dCY8Ax31G8rFu87m3nqX_F1h_-7s0lWoJghBZYXk8Upaj2sY25ZESI2xIhAu6m3rBZh8u7McJI95JZgsjMfb79dfDUk_MMeioJMbkRmlvcnAE_F3oIzhWdn4/s3264/IMG_3345.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3_l_wTyGpxCRckEpzdqJQoeU4shlWRZ-B7nnBLEIFbABX_4vx1A8wtJIro7I7SydDuqn7dCY8Ax31G8rFu87m3nqX_F1h_-7s0lWoJghBZYXk8Upaj2sY25ZESI2xIhAu6m3rBZh8u7McJI95JZgsjMfb79dfDUk_MMeioJMbkRmlvcnAE_F3oIzhWdn4/s320/IMG_3345.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">但實際上正極對地電位約109V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmXnvJOc3xgTUdsRDxY6WN3C2k7aJ3CAXz3wk_ybpaZY34xoNGIx9vbracKOAcXfKP-iG164_MgCQ-RijLrbiluXTkpRl0vJEQ2JIISbcr_C-O_-b3Kl_aVVyUy_iGxQmhwC7WOpiFH3-Zi5tiHmSONJ6vEUuGcxEYFQ-BpiQkyb9XS6GFDsFSnvMyQfM-/s3264/IMG_3343.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmXnvJOc3xgTUdsRDxY6WN3C2k7aJ3CAXz3wk_ybpaZY34xoNGIx9vbracKOAcXfKP-iG164_MgCQ-RijLrbiluXTkpRl0vJEQ2JIISbcr_C-O_-b3Kl_aVVyUy_iGxQmhwC7WOpiFH3-Zi5tiHmSONJ6vEUuGcxEYFQ-BpiQkyb9XS6GFDsFSnvMyQfM-/s320/IMG_3343.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">負極對地電位約-50V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDmeT8pSMoQnX0Vq7lzub9sQZNG1mJ1kIIdef9upPUdmDOA5XD3DlQOrxYp-rn4go41wpR_mMsUtw3zim5fT5ROyXCRb1Sl9YC-6XRy1SvkiTYbM-3U-DpLnOwN39Wn_E8r45FZUCqY7QwR3OgvhvRUsNPbhT-_1SFl74dR8W0ja5pxN3c3VZ28OecTZ18/s3264/IMG_3347.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDmeT8pSMoQnX0Vq7lzub9sQZNG1mJ1kIIdef9upPUdmDOA5XD3DlQOrxYp-rn4go41wpR_mMsUtw3zim5fT5ROyXCRb1Sl9YC-6XRy1SvkiTYbM-3U-DpLnOwN39Wn_E8r45FZUCqY7QwR3OgvhvRUsNPbhT-_1SFl74dR8W0ja5pxN3c3VZ28OecTZ18/s320/IMG_3347.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這樣的DC雖然已經經過電容濾波</div><div style="text-align: left;">在示波器上的波形算是不錯的</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUBgloIUoP0Xonm58swlxPX28y-iSZw0zZ8-Fe0CKW1JhPUiMtpMCd9DCaF8_HPnaWCLLzsQOenBy5N2EipnV07VhJmc7CiN29WGbfbp30s7JA50JArkz0iCN3z10bV1AWcAfRbeM_BdeGxXF-xosBnlBU0Kds-bnninI4P3h-FP-NfopP7m9q3tNv2lNN/s3264/IMG_3385.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUBgloIUoP0Xonm58swlxPX28y-iSZw0zZ8-Fe0CKW1JhPUiMtpMCd9DCaF8_HPnaWCLLzsQOenBy5N2EipnV07VhJmc7CiN29WGbfbp30s7JA50JArkz0iCN3z10bV1AWcAfRbeM_BdeGxXF-xosBnlBU0Kds-bnninI4P3h-FP-NfopP7m9q3tNv2lNN/s320/IMG_3385.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglBmhsOJ-dKofhiPzZ_Z8e0ngPa543NM49GQ7eF9dTYBkbSaAdvAa4xGZeSEkY2CMe7_30dum7IFvjqRauijy8ytjRtHP4UZBANd85UJuQgMonxnJGk-wXjDvQPN_IOOySH_Ur5G0F8E6goW5vGn15MYPUaKjRIRdvfIYqNKTTzAf4bwH4DeTK5srV_stg/s3264/IMG_3386.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglBmhsOJ-dKofhiPzZ_Z8e0ngPa543NM49GQ7eF9dTYBkbSaAdvAa4xGZeSEkY2CMe7_30dum7IFvjqRauijy8ytjRtHP4UZBANd85UJuQgMonxnJGk-wXjDvQPN_IOOySH_Ur5G0F8E6goW5vGn15MYPUaKjRIRdvfIYqNKTTzAf4bwH4DeTK5srV_stg/s320/IMG_3386.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">但經過雙股長導線(有寄生電容)的過濾</div><div style="text-align: left;">對地的AC電壓還是現形出來了(電容的通交隔直)</div><div style="text-align: left;">連接正極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhr6rcGi5QddUxQ8S4RIUOXg6yTA3H_jAD7Mga5zoIG94HvuX1_vl1w3ZDiyXcLwqa8dLH-5z2-1_1TV2SgTtVzn1MRXdFLOHXPAo8fuXxoJZecBQXTD2NqT48QXVilJzDPMBtqF46F4t5stMd6FuHn0q6MaN8eBz-UfrllQUnhfW_N1pr0waFKdhKbTpWJ/s3264/IMG_3351.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhr6rcGi5QddUxQ8S4RIUOXg6yTA3H_jAD7Mga5zoIG94HvuX1_vl1w3ZDiyXcLwqa8dLH-5z2-1_1TV2SgTtVzn1MRXdFLOHXPAo8fuXxoJZecBQXTD2NqT48QXVilJzDPMBtqF46F4t5stMd6FuHn0q6MaN8eBz-UfrllQUnhfW_N1pr0waFKdhKbTpWJ/s320/IMG_3351.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-MRMwzw5N1-q08sjuWWktIW5d8WYBOhMp3lN79oVnq6VtYtVdGUgtNy-NRnbUDFVDVKdur0wxCXKkzYPV2Y7SsE2tVV6BaG6OUvRO12moD_zDu9vhEb0XcRUbT8utCfKGcZfdMvvqtnw0KusMKJKTfnjCutX0HBB5s5d-xnF1ZJUopPdBCZBCrfSgcybY/s3264/IMG_3352.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-MRMwzw5N1-q08sjuWWktIW5d8WYBOhMp3lN79oVnq6VtYtVdGUgtNy-NRnbUDFVDVKdur0wxCXKkzYPV2Y7SsE2tVV6BaG6OUvRO12moD_zDu9vhEb0XcRUbT8utCfKGcZfdMvvqtnw0KusMKJKTfnjCutX0HBB5s5d-xnF1ZJUopPdBCZBCrfSgcybY/s320/IMG_3352.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">連接負極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_j6sMH6VLDqs-pN-x49BipROwQaSq6E_bY5Z8Ylq5pQxkbpd_w4Y1-XkUTZIjiPgMQSw-TaLxrt2lojIRkiYVT1FaTYpxWFouiIFq2TfsyqQUtcGaU_2VXt1kFo7mszlUlLIELIUbDgkoLmiFV9sNOM1b40qZij1zDXfZYvtXFM6rvE6lWV5089OPFVz3/s3264/IMG_3349.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_j6sMH6VLDqs-pN-x49BipROwQaSq6E_bY5Z8Ylq5pQxkbpd_w4Y1-XkUTZIjiPgMQSw-TaLxrt2lojIRkiYVT1FaTYpxWFouiIFq2TfsyqQUtcGaU_2VXt1kFo7mszlUlLIELIUbDgkoLmiFV9sNOM1b40qZij1zDXfZYvtXFM6rvE6lWV5089OPFVz3/s320/IMG_3349.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRvPLs66HpL01dGbVBbcKm_isSscEwnu9CzrPQ-nLezpw8OTHG6RyCrMX13tP85S1FyLuWEIpbvscqOOfRUdNnRAHwuNyulhuIFk1T2j__EctEacZiTQ0YIrRo2qzg02YYOXGeYdyVjZe7d8vmX16yrIDWf_PuCZpfkeBXQR_kj0qoNuCu26aJwFW5HvXR/s3264/IMG_3350.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRvPLs66HpL01dGbVBbcKm_isSscEwnu9CzrPQ-nLezpw8OTHG6RyCrMX13tP85S1FyLuWEIpbvscqOOfRUdNnRAHwuNyulhuIFk1T2j__EctEacZiTQ0YIrRo2qzg02YYOXGeYdyVjZe7d8vmX16yrIDWf_PuCZpfkeBXQR_kj0qoNuCu26aJwFW5HvXR/s320/IMG_3350.JPG" width="320" /></a></div><div><br /></div><div>我們再用一個335J的CBB電容來做對照</div><div>正極連接電容,測量另一端對地波形</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivGviUHU1FvEiRjGrfL__b75V6aNg6c_GV52uAgGQ4MXpeukMkmZ82UE15YeaepK01vzf0fmHtRxIL874ym0oSPbH99Cw-y38KItFDmotKtEunJDYMkwk4suZUCbDOyoKv5gS-iVQwTmsyV2w-ZRxu9tO5B5B0zhU6tWaoI0LA7b9CjpyJxmQl_KCvDWyw/s3264/IMG_3388.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivGviUHU1FvEiRjGrfL__b75V6aNg6c_GV52uAgGQ4MXpeukMkmZ82UE15YeaepK01vzf0fmHtRxIL874ym0oSPbH99Cw-y38KItFDmotKtEunJDYMkwk4suZUCbDOyoKv5gS-iVQwTmsyV2w-ZRxu9tO5B5B0zhU6tWaoI0LA7b9CjpyJxmQl_KCvDWyw/s320/IMG_3388.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEho2AenFCOem_RU_T4tNXnYDcztrtg7jL0Cu1vL9d5-O8xDxgfqiLcj6uVtEPZMmSmg3rOfgFdO1UPqWo1RLd_xR1Ec1yPU59HRCgFC-FyjzY89BX6TZRSYyOARyAgtJmx70pcnXfIFajipvhxiHrSubZ6JvIWoWtzN4e2acya3cevkdOC6Qu0Mef6yEIUh/s3264/IMG_3389.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEho2AenFCOem_RU_T4tNXnYDcztrtg7jL0Cu1vL9d5-O8xDxgfqiLcj6uVtEPZMmSmg3rOfgFdO1UPqWo1RLd_xR1Ec1yPU59HRCgFC-FyjzY89BX6TZRSYyOARyAgtJmx70pcnXfIFajipvhxiHrSubZ6JvIWoWtzN4e2acya3cevkdOC6Qu0Mef6yEIUh/s320/IMG_3389.JPG" width="320" /></a></div><br /><div><br /></div><div>正極連接電容,測量另一端對地波形</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEic-T0oQUvuf-8fHawp9hyG_AonRf7ZiTTXIg5XG-5yEl5uF5pjG81aYByj8zc1-UnzbL5HZ8UCTtKYTaHV6zfvl1vmB73Cb2s0N-JZ_S6MM37n8zlKP254c-zWEfpq0-RoPXruU8gOveUhn-q8svKKMxbhZDoi4x1Ev5__ielk4S9Ucrl6HTtbZF_24w5I/s3264/IMG_3390.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEic-T0oQUvuf-8fHawp9hyG_AonRf7ZiTTXIg5XG-5yEl5uF5pjG81aYByj8zc1-UnzbL5HZ8UCTtKYTaHV6zfvl1vmB73Cb2s0N-JZ_S6MM37n8zlKP254c-zWEfpq0-RoPXruU8gOveUhn-q8svKKMxbhZDoi4x1Ev5__ielk4S9Ucrl6HTtbZF_24w5I/s320/IMG_3390.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmp8Vh_qEjcKA1HDVP7I051GC9ywP2ZZ_xGTsiqrTz4P2YaJVSr2BdK-d8e24RGeYAo21GeGSuvOtbdDR1N9X6EWRpUgs5nQRKs1N15YiQ963JpkcX2HNlI-Fr6X5H2GcpPNAOSeLSOBv9V-2Hc8Pohxlo45uSVdDr2Ar5Tr7Jda4hYccXYD_ds6KD6lxy/s3264/IMG_3391.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmp8Vh_qEjcKA1HDVP7I051GC9ywP2ZZ_xGTsiqrTz4P2YaJVSr2BdK-d8e24RGeYAo21GeGSuvOtbdDR1N9X6EWRpUgs5nQRKs1N15YiQ963JpkcX2HNlI-Fr6X5H2GcpPNAOSeLSOBv9V-2Hc8Pohxlo45uSVdDr2Ar5Tr7Jda4hYccXYD_ds6KD6lxy/s320/IMG_3391.JPG" width="320" /></a></div><br /><div><br /></div><div>都是呈現明顯的AC</div><div><br /></div><br /><div style="text-align: left;">因此我們用氖燈檢測</div><div style="text-align: left;">不管是正極還是負極連接雙股導線的紅線端</div><div style="text-align: left;">黑線端的另一側依舊可以點亮氖燈</div><div style="text-align: left;">如同連接AC一樣,但亮度明顯下降許多</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9DHxsHm9hLLmGNCbaq2PzGJPYCRqaoGXIAcKtRJZ0SbVnwxDmLK_zUqkwNqhmLmG6PCghGbt99V64_v2nCYo9iNjwVymSvUAClPFAPa0s2BosSdNoDjxIqREEYW_HaABBNy5qvMoetRwc9wJTTD3MdySGvlollAHh3OC7QSVftFyRaRwaKl4KUqi-UoPZ/s3264/IMG_3332.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9DHxsHm9hLLmGNCbaq2PzGJPYCRqaoGXIAcKtRJZ0SbVnwxDmLK_zUqkwNqhmLmG6PCghGbt99V64_v2nCYo9iNjwVymSvUAClPFAPa0s2BosSdNoDjxIqREEYW_HaABBNy5qvMoetRwc9wJTTD3MdySGvlollAHh3OC7QSVftFyRaRwaKl4KUqi-UoPZ/s320/IMG_3332.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTpbLxk2H5euwJO0EWDa29uduCqU_tpeO2_eZAebfiKDGeKvoWQF0ZtbAdk-twdeNK-BU0tpUHzH7AOGYMJ1zwxeZ4LJR_Vxrfx0PnFUaw39-lA01YA1zo_2oGGwR-D-upj8AUhcP1DhHvR27rqfu34GJteTa2emFASSLx2n6ZUPqS64hY_pD-SfZxkm4g/s3264/IMG_3333.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTpbLxk2H5euwJO0EWDa29uduCqU_tpeO2_eZAebfiKDGeKvoWQF0ZtbAdk-twdeNK-BU0tpUHzH7AOGYMJ1zwxeZ4LJR_Vxrfx0PnFUaw39-lA01YA1zo_2oGGwR-D-upj8AUhcP1DhHvR27rqfu34GJteTa2emFASSLx2n6ZUPqS64hY_pD-SfZxkm4g/s320/IMG_3333.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtVJwX2a4pGoHIgHY9RoVrfs-fn0CRNo0V-OHK5J5us2n2fYzvTGcuYvMMdM4ICitTAD3qEtg3j7TwHuKAn3YZ9Un7j6NaLu_gBO1fRxNVaI2DsyEqY5eAQ3OZV9HBYwpB2vPNeDf4-5dpKnfGh9cpzX8Kr6VzxrKu96ZC2gFA0cUCGMb2T6S4YxBTCieL/s3264/IMG_3334.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtVJwX2a4pGoHIgHY9RoVrfs-fn0CRNo0V-OHK5J5us2n2fYzvTGcuYvMMdM4ICitTAD3qEtg3j7TwHuKAn3YZ9Un7j6NaLu_gBO1fRxNVaI2DsyEqY5eAQ3OZV9HBYwpB2vPNeDf4-5dpKnfGh9cpzX8Kr6VzxrKu96ZC2gFA0cUCGMb2T6S4YxBTCieL/s320/IMG_3334.JPG" width="320" /></a></div><br /><div style="text-align: left;">4.化學電池DC</div><div style="text-align: left;">了解電源參考電位的概念之後</div><div style="text-align: left;">化學電池經過雙股導線對地沒有電位就很容易可以理解了</div><div style="text-align: left;">因為化學電池必須在正負極同時產生化學反應才會產生電子的流動</div><div style="text-align: left;">因此以電子來說,參考電位就是正極</div><div style="text-align: left;">電流的參考電位就是負極</div><div style="text-align: left;">對電池來說,不管正極還是負極對地都不會有電位</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijbR1Iwp96XuOEq7HDydxZn8mQQV7aFicypev2J9G1J3rbiHnKzXMmFPvZJ-zAEWY6BXS7QZdhZqmxKaiD4aEtzkHJ5UpC15MjQkEgfx_WHwx_N06bIJB_Pnyfqe3iQ2J3Lmub0pHxUacFsdEtuEGDF2Ycs8rPx7cKPoiRPJE10_bGXOrlkDYXiPRV3Wbg/s3264/IMG_3353.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijbR1Iwp96XuOEq7HDydxZn8mQQV7aFicypev2J9G1J3rbiHnKzXMmFPvZJ-zAEWY6BXS7QZdhZqmxKaiD4aEtzkHJ5UpC15MjQkEgfx_WHwx_N06bIJB_Pnyfqe3iQ2J3Lmub0pHxUacFsdEtuEGDF2Ycs8rPx7cKPoiRPJE10_bGXOrlkDYXiPRV3Wbg/s320/IMG_3353.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXV_d4ps0333PHYwMfnURj6hOHX41saa46Tu3DBab5THtAlaU2Aco49wNO0BV_sW3F917DhMCCYqexrDAZys5AchuzCQCrbXb_c59y8kmI75MG47Lc0SssVAmZdQlkkZSuFgo-VWQF8lfSLYZTm6eaqEE2xRM8KaJWi8QBfdPaQIhcJHr2JgqELBlIHE-D/s3264/IMG_3354.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXV_d4ps0333PHYwMfnURj6hOHX41saa46Tu3DBab5THtAlaU2Aco49wNO0BV_sW3F917DhMCCYqexrDAZys5AchuzCQCrbXb_c59y8kmI75MG47Lc0SssVAmZdQlkkZSuFgo-VWQF8lfSLYZTm6eaqEE2xRM8KaJWi8QBfdPaQIhcJHr2JgqELBlIHE-D/s320/IMG_3354.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvwn0zriWN8Q7gzPQmRBLt448LFNElN3s-x5vPQrPdh5xpKEocuujwzambrKPSiTYPrNplrsJolQbIra0qk8iwH0X0MnyS66e2PKDud8x8oDl7LshQ9TYVeZr6erKJ9djVM7imY2ziSSHeHdMkkFWgSYW3xXNIC1KOVSOK8okah7ZJUee3kxybGuOUcdWt/s3264/IMG_3355.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvwn0zriWN8Q7gzPQmRBLt448LFNElN3s-x5vPQrPdh5xpKEocuujwzambrKPSiTYPrNplrsJolQbIra0qk8iwH0X0MnyS66e2PKDud8x8oDl7LshQ9TYVeZr6erKJ9djVM7imY2ziSSHeHdMkkFWgSYW3xXNIC1KOVSOK8okah7ZJUee3kxybGuOUcdWt/s320/IMG_3355.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">因為這根本是兩個不同的系統</div><div style="text-align: left;">除非電池內部大量電子分布不均,但這種情況幾乎不可能發生</div><div style="text-align: left;"><br /></div><div style="text-align: left;">至於第1、2種隔離式的DC</div><div style="text-align: left;">複雜多了~~</div><div style="text-align: left;">以後再說吧(因為我也不會...)</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-34942027190977652782024-01-26T20:23:00.002+08:002024-01-27T16:00:25.866+08:00電線裡的寄生電容_AC篇回到如下圖的問題<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEib_U4968TtqGBiU4F_ypuFOEph-sgQrLWco614Wn0IncPWTDif0Am3fsfR9_egu3qtzuR8fW2AP0mPYvkEdjF2Wc3D9-CyxoCFO7NmAKHe8zLOFNIAqa78PgKlSPtF8MgMAt9oNd6F3_JvLVmQ1oX0sir3p0GFeUZoVn_VD7qoImamLSXA-CwOZ9r7wfdN/s3264/IMG_3348.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEib_U4968TtqGBiU4F_ypuFOEph-sgQrLWco614Wn0IncPWTDif0Am3fsfR9_egu3qtzuR8fW2AP0mPYvkEdjF2Wc3D9-CyxoCFO7NmAKHe8zLOFNIAqa78PgKlSPtF8MgMAt9oNd6F3_JvLVmQ1oX0sir3p0GFeUZoVn_VD7qoImamLSXA-CwOZ9r7wfdN/s320/IMG_3348.JPG" width="320" /></a></div><br /><div><br /><div>為什麼將雙股導線其中一股(紅色)插入AC110V的火線端(或中性線端)</div><div>另外一股(黑色)的尾端會有電!!</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9R308v3u76NI6GkTI5NrjVHp-L5SLBxxOTnqZ8RGNZQRsAIEsz6Ry099Kigmk7wIrZh2boreOe-QS59YCtXYYAqsGoXvSf9acEg0mVZc1oW4SQz4flIJ4sMO2mfUHJRUTvnIOxb2y8IzaSPZm9AtHTil5-WtKdwVb2xOUzbOEXK-gbiCfbhgHP9foKt9v/s3264/IMG_3324.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9R308v3u76NI6GkTI5NrjVHp-L5SLBxxOTnqZ8RGNZQRsAIEsz6Ry099Kigmk7wIrZh2boreOe-QS59YCtXYYAqsGoXvSf9acEg0mVZc1oW4SQz4flIJ4sMO2mfUHJRUTvnIOxb2y8IzaSPZm9AtHTil5-WtKdwVb2xOUzbOEXK-gbiCfbhgHP9foKt9v/s320/IMG_3324.JPG" width="320" /></a></div><br /><div><br /></div><div>這件事如果回到原點來看,就會比較簡單了</div></div><div>雙股導線的構造基本上和電容非常類似,就像兩面隔離的金屬</div><div>實際測量約有2.7nF的電容量</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEja8VBWlbEGLv157HU9dAD9xuk8Oa37Rfsur5teyEaXKZLSzQiJW2NULH3hfrOa6SKSqrRDqTzmeJcjwUHlSeBvGk9LlqVboem6eXRlgFcFpgL-JujV6kd-ECIKc6uC51fNgwi7MeepLz6ruWHOKd6EVidqSiRy48sgpyknGrPAfyaMxNvGnwAHZgRyvh_A/s3264/IMG_3327.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEja8VBWlbEGLv157HU9dAD9xuk8Oa37Rfsur5teyEaXKZLSzQiJW2NULH3hfrOa6SKSqrRDqTzmeJcjwUHlSeBvGk9LlqVboem6eXRlgFcFpgL-JujV6kd-ECIKc6uC51fNgwi7MeepLz6ruWHOKd6EVidqSiRy48sgpyknGrPAfyaMxNvGnwAHZgRyvh_A/s320/IMG_3327.JPG" width="320" /></a></div><br /><div><br /></div><div>所以如果其中一股通入60Hz的電流</div><div>這條雙股導線(電容)就會導通(電容的通交隔直效應)</div><div>另一股導線當然就會有電了</div><div>示意圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6KiX2CS018oidyBUaNM6pYbfwWQgEdwo9hgxGwN5M9GyTixXyFyBmcaLeJ_sKAjJEJ3jHN4PZAsYfLReqCXeoy6-se8-mRQk-7FyvpX_PYQ5mXikux4XD1gm-adWMZdyAXgwlGJ24tgJ-MelhMLSv1pbgLHnit3A8DSwvHSodTI7lrCusTuQ0tz-qmxuk/s3264/IMG_3360.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6KiX2CS018oidyBUaNM6pYbfwWQgEdwo9hgxGwN5M9GyTixXyFyBmcaLeJ_sKAjJEJ3jHN4PZAsYfLReqCXeoy6-se8-mRQk-7FyvpX_PYQ5mXikux4XD1gm-adWMZdyAXgwlGJ24tgJ-MelhMLSv1pbgLHnit3A8DSwvHSodTI7lrCusTuQ0tz-qmxuk/s320/IMG_3360.JPG" width="320" /></a></div><br /><div><br /></div><div>當然,還有一個可能的原因</div><div>那就是中性線產生的感應電</div><div>但實際測量黑線(可視為N)尾端對地的電壓約有112V</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjky7jHYZa6YS3nznAqW3HbYT6ax7GImRmHCaMYYr43B0rjrvpaOL-p7PFlnMnZ9KRG-VVTTSnWwXJuaF6Jhuel0tvt9T7IaA5gSj3m1uwkGRcMlP6xabVudjBMJVy6ub3lZrtmlpGT1_VI7m8Io2ZDC5VNafCdOOsaQgqL8TUv0nFt6kZFKDcecn-WdDma/s3264/IMG_3383.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjky7jHYZa6YS3nznAqW3HbYT6ax7GImRmHCaMYYr43B0rjrvpaOL-p7PFlnMnZ9KRG-VVTTSnWwXJuaF6Jhuel0tvt9T7IaA5gSj3m1uwkGRcMlP6xabVudjBMJVy6ub3lZrtmlpGT1_VI7m8Io2ZDC5VNafCdOOsaQgqL8TUv0nFt6kZFKDcecn-WdDma/s320/IMG_3383.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div><br /></div><div>如果是感應電一般不會那麼高</div><div>所以應該還是電線產生的電容效應造成的可能性較大</div><div><br /></div><div>那整捆線圈造成的電感效應呢?</div><div>我們將電線捲在一起,確實會產生極明顯的電感效應</div><div>實測紅線兩端的感值高達1.3mH</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhW1FXni4cjaAgAYWy-ACUqmfSzN43TXCcw1V7_litW-VLn2cVX8GJwi84mTFb1i9ODzJKiRAsshowbK47ikTGnB4IFErlpm-vfV0JSbjaUiobFo2oqgBU7930IKcwnwWpV9dEOuQKboioNnCT_OkXWWWuMdTmfghrvJGCOCIK4qA6HYJ5imzV1hTgfpFWM/s3264/IMG_3361.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhW1FXni4cjaAgAYWy-ACUqmfSzN43TXCcw1V7_litW-VLn2cVX8GJwi84mTFb1i9ODzJKiRAsshowbK47ikTGnB4IFErlpm-vfV0JSbjaUiobFo2oqgBU7930IKcwnwWpV9dEOuQKboioNnCT_OkXWWWuMdTmfghrvJGCOCIK4qA6HYJ5imzV1hTgfpFWM/s320/IMG_3361.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvU2gKLwxW6-oxYZvIIOzfQYxiy_aVmVMxFJFuErrE94Qs5f1xkcGQkiPg9kcHTK3wxgKVFncP7gv42mkV-JKho_xoy8Cx2dslGV6qb0xExR-AtzsC1q6GTJshssVJeFosL6aHTsA9SmqnJne11LiAwa7Wrv5MTDlGFL_5PC8ovso_IjrYhjpsSbRxPFmr/s3264/IMG_3362.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvU2gKLwxW6-oxYZvIIOzfQYxiy_aVmVMxFJFuErrE94Qs5f1xkcGQkiPg9kcHTK3wxgKVFncP7gv42mkV-JKho_xoy8Cx2dslGV6qb0xExR-AtzsC1q6GTJshssVJeFosL6aHTsA9SmqnJne11LiAwa7Wrv5MTDlGFL_5PC8ovso_IjrYhjpsSbRxPFmr/s320/IMG_3362.JPG" width="320" /></a></div><br /><div><br /></div><div>但電感效應必須在同一條電線上才會產生感抗</div><div>所以在這邊應該是可以忽略電感所造成的影響</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-62041206070859441462024-01-26T15:11:00.007+08:002024-01-26T15:11:52.895+08:00電線裡的寄生電容_問題篇<div style="text-align: left;">去年差不多這個時候寫了電路中的寄生電感</div><div style="text-align: left;">前幾天FB跳了回顧給我</div><div style="text-align: left;">應該就是鞭策我,還有下一篇還沒寫吧...</div><div style="text-align: left;"><br /></div><div style="text-align: left;">先來看看以下這個有趣的實驗</div><div style="text-align: left;">我們拿了一條50公尺長的雙股導線</div><div style="text-align: left;">單股電阻約3.6歐</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6GOsT1uI79WFhZrw5b1yjHn6esnj_sRr0sd5mAjepv8QqaqbR7QqTDxcJ_T9EnjlNw9cWQdQFabgIjgx12a0FWqchkC0Bfjll5VG0SVP0LocCbkrSlYm811LygBr4p0hCypbDSZt-qo84keAKLatV7T5LwTddZ6f39wukuZBg_BCOST6iuQppkmu6zdyT/s3264/IMG_3357.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6GOsT1uI79WFhZrw5b1yjHn6esnj_sRr0sd5mAjepv8QqaqbR7QqTDxcJ_T9EnjlNw9cWQdQFabgIjgx12a0FWqchkC0Bfjll5VG0SVP0LocCbkrSlYm811LygBr4p0hCypbDSZt-qo84keAKLatV7T5LwTddZ6f39wukuZBg_BCOST6iuQppkmu6zdyT/s320/IMG_3357.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">其中一端(紅色)插入AC110V的火線端(或中性線端)</div><div style="text-align: left;">另外一條(黑色)尾端會有電嗎?</div><div style="text-align: left;">如下圖示</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7uzLn-DdgoLLNyA6ZBbxpaaNcnUfqEGfMoiBFsFyWciN-adkj1cMOc_aEhF8pVKjj9tLk54BjDIyYs0l7Jx9nAqPwVYkWRhipfalhvcFVfB1cszkJ9NHow3InvM40ItzRpw5jTE5V6DMo8iXSGaro1iLIdN_JN14-DO1Bd7EbfFQh5f5XWc8y4-15SNCL/s3264/IMG_3348.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7uzLn-DdgoLLNyA6ZBbxpaaNcnUfqEGfMoiBFsFyWciN-adkj1cMOc_aEhF8pVKjj9tLk54BjDIyYs0l7Jx9nAqPwVYkWRhipfalhvcFVfB1cszkJ9NHow3InvM40ItzRpw5jTE5V6DMo8iXSGaro1iLIdN_JN14-DO1Bd7EbfFQh5f5XWc8y4-15SNCL/s320/IMG_3348.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">我們利用氖燈接地來測試</div><div style="text-align: left;">會亮應該就表示有電</div><div style="text-align: left;">結果...</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjy5z7HNeX71yWhkWdjHZOCSxa6KwrkfKR5_lpjarEs09CmcCYqdYV2ba4cYrQ2g3iL09vjJ-qz5QSEBZRfdrZWv2iu2WROnZ1QXZaIJgBcM-6N6rGJTRwPfSBGRw-3NgK-7Qcjx5wpd725DRkJjd51pWRWuaziFBtrDCjvBNnKHMt31UYc60sXrIh4iJze/s3264/IMG_3329.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjy5z7HNeX71yWhkWdjHZOCSxa6KwrkfKR5_lpjarEs09CmcCYqdYV2ba4cYrQ2g3iL09vjJ-qz5QSEBZRfdrZWv2iu2WROnZ1QXZaIJgBcM-6N6rGJTRwPfSBGRw-3NgK-7Qcjx5wpd725DRkJjd51pWRWuaziFBtrDCjvBNnKHMt31UYc60sXrIh4iJze/s320/IMG_3329.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>1. 連接L<br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjwDTJSxAWki0rnwMgMLXw5i658W58vFHZPiawDywJRFq5t58lDSD_Iu9I0xnydh_dfmdfgtJztxQMqSWTPQrYa3h-X64OwNw_9buZRUWumJLiBNbNHJyLOUTeh_Au-scGFaNRRR3dG94ycNr3Q7C9IQqHDKwzKlLVxi33Z2dm2XCHIIGoRTt5vYNb9v29a/s3264/IMG_3323.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjwDTJSxAWki0rnwMgMLXw5i658W58vFHZPiawDywJRFq5t58lDSD_Iu9I0xnydh_dfmdfgtJztxQMqSWTPQrYa3h-X64OwNw_9buZRUWumJLiBNbNHJyLOUTeh_Au-scGFaNRRR3dG94ycNr3Q7C9IQqHDKwzKlLVxi33Z2dm2XCHIIGoRTt5vYNb9v29a/s320/IMG_3323.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_CEqmevfUhRaZmaLDvwzI9KBkXwf8U-CQATLW8SIqjfmlaEzHwSSq1mE_K4XWXaf3XAgf2tau1bbu_1bmOK-GcjShnzCbjB-aPb1ODRObFuTiVZ-6Bv0ExPhNF5S7ntMpnLEEHZNDTYZ56r1y6kSJNz7EATP9giLuYOQcJtPT6kQEOuXxq_FyC2tqY5IP/s3264/IMG_3325.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_CEqmevfUhRaZmaLDvwzI9KBkXwf8U-CQATLW8SIqjfmlaEzHwSSq1mE_K4XWXaf3XAgf2tau1bbu_1bmOK-GcjShnzCbjB-aPb1ODRObFuTiVZ-6Bv0ExPhNF5S7ntMpnLEEHZNDTYZ56r1y6kSJNz7EATP9giLuYOQcJtPT6kQEOuXxq_FyC2tqY5IP/s320/IMG_3325.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">2. 連接N</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZ0UEF_XMmZPZqjr8SiyLkKjFAtbwRLBfyZgfM6M5zAKimNy7anbefL2LdJvhdpmDvsC8WSGijTMf9txRLvgv6tcAOK_togHYxcLoBqFGIwwBlreRRptCa2XeJcRXwo4Y3TxQqodY-z6dQWdOpv_xOYD1uOPRXr5MVUS7ED3xHCHK2JexUcBsJ91LGVSiw/s3264/IMG_3358.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZ0UEF_XMmZPZqjr8SiyLkKjFAtbwRLBfyZgfM6M5zAKimNy7anbefL2LdJvhdpmDvsC8WSGijTMf9txRLvgv6tcAOK_togHYxcLoBqFGIwwBlreRRptCa2XeJcRXwo4Y3TxQqodY-z6dQWdOpv_xOYD1uOPRXr5MVUS7ED3xHCHK2JexUcBsJ91LGVSiw/s320/IMG_3358.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiERkDJmqmQvkUmboxtiNXyEAthaxqkdJ_gL-An_LVoIWPpTUe2VT59CVshLKU30VQv3lp2ujXA5RqV0PXGaIQwlpsoegpR0cnG871lOrP7t4em0omf1JCVXx-C6ZUSJaz4ZChBYB2FY-mY7eY7RA4F8oxLAxuUdX8jqfAExnqSfTGM_XqwJQ4q6gGq7wvL/s3264/IMG_3359.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiERkDJmqmQvkUmboxtiNXyEAthaxqkdJ_gL-An_LVoIWPpTUe2VT59CVshLKU30VQv3lp2ujXA5RqV0PXGaIQwlpsoegpR0cnG871lOrP7t4em0omf1JCVXx-C6ZUSJaz4ZChBYB2FY-mY7eY7RA4F8oxLAxuUdX8jqfAExnqSfTGM_XqwJQ4q6gGq7wvL/s320/IMG_3359.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">那如果改為連接市電整流濾波之後的高壓直流電(160V)正負極呢?</div><div style="text-align: left;">結果...</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhL4Bx1pAXnVdSiyNwFEBNSHKFP6QwPHqgjetP4Bk3SPvwQiXDb3oI33dRxmZdnhl7fU-fZI-OOW4MVZv9sHvIPb_glD35gn2kCNGudemXIKt6uyAJDpC5TLkLY_U9a1HQypJ9UkbGg9OLWrqepai58ysgsTGjEZJVaVkBc1p7U8cSrCc3WoAgV3hipusik/s3264/IMG_3345.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhL4Bx1pAXnVdSiyNwFEBNSHKFP6QwPHqgjetP4Bk3SPvwQiXDb3oI33dRxmZdnhl7fU-fZI-OOW4MVZv9sHvIPb_glD35gn2kCNGudemXIKt6uyAJDpC5TLkLY_U9a1HQypJ9UkbGg9OLWrqepai58ysgsTGjEZJVaVkBc1p7U8cSrCc3WoAgV3hipusik/s320/IMG_3345.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">1. 連接正極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4IYbR2J1IQqdBti6YEtf32nD3TugrTdT1kob0NuiXkH66R_F-r7YWwQut__Wqf-jVEOwOBXz2aUnwlllpbBIgBgx-Fza8dHxpfHgBU6XkOi0JBqtE0zF8xZ7Xec64aKePtoVTr9oyPSi9FVEkgqdCdflH-5gmO9VUEhRwTww0jqi2E-4KZZjbULT4X6cn/s3264/IMG_3334.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4IYbR2J1IQqdBti6YEtf32nD3TugrTdT1kob0NuiXkH66R_F-r7YWwQut__Wqf-jVEOwOBXz2aUnwlllpbBIgBgx-Fza8dHxpfHgBU6XkOi0JBqtE0zF8xZ7Xec64aKePtoVTr9oyPSi9FVEkgqdCdflH-5gmO9VUEhRwTww0jqi2E-4KZZjbULT4X6cn/s320/IMG_3334.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">2. 連接負極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjA6150HgfEmQ6jv2f-cQ8ouvmRG8mKtYt4gHq6RS6cOmnZJBIBFJEghcGZ5769tnhKwFV1ZikyHb_5LGIGsYxqOf3enf1uykFJ6jCMaym4wgEtWnL8QMbe4Cm17dVo04D5W-3mksmC3ox1NYYA7A5Ot59YO54U0Ze7r9ZAdt_pPxTjK4waXvMLp2mMLVSF/s3264/IMG_3333.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjA6150HgfEmQ6jv2f-cQ8ouvmRG8mKtYt4gHq6RS6cOmnZJBIBFJEghcGZ5769tnhKwFV1ZikyHb_5LGIGsYxqOf3enf1uykFJ6jCMaym4wgEtWnL8QMbe4Cm17dVo04D5W-3mksmC3ox1NYYA7A5Ot59YO54U0Ze7r9ZAdt_pPxTjK4waXvMLp2mMLVSF/s320/IMG_3333.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;"><div>那如果連接電池的標準直流電(54V)正負極呢?</div><div>結果...</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3YPzdRM3yii43JTgl3N8xBnL0_3CJVa7OtK9LFrHS3C0G44LJRkhlKGh5ppG6qzyQmgRoWxl2fOI0ytqMuWHRYZ4RK-1RI5Q9YlwFVVjY9zcWqSLnuydnhxHkypl13Ppjl74jP66g_eVhoBBXFVT6rOp7hwV3wodMIXodqYlwatZWGl4yXcTHwa1xRQW8/s3264/IMG_3353.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3YPzdRM3yii43JTgl3N8xBnL0_3CJVa7OtK9LFrHS3C0G44LJRkhlKGh5ppG6qzyQmgRoWxl2fOI0ytqMuWHRYZ4RK-1RI5Q9YlwFVVjY9zcWqSLnuydnhxHkypl13Ppjl74jP66g_eVhoBBXFVT6rOp7hwV3wodMIXodqYlwatZWGl4yXcTHwa1xRQW8/s320/IMG_3353.JPG" width="320" /></a></div><br /><div><br /></div><div>1. 連接正極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKo2CvED9i7MHcOmZdMpHmdNG0ApSu_Dbf3ctCm0hZjMqkBgsz9Dpig6ecU1yQ2x5uhwul4eRwKYG9A8p7DqIHZaBBOdvJ3YiTyVaCCKQeV1ytqEDdHm5_sQHHspCqmH8zJs6_8gHNA9pSIafbSaZuxLF1p21A2RNv0GRAVG9P7VhsbWQGk4DdhZYCiddM/s3264/IMG_3354.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKo2CvED9i7MHcOmZdMpHmdNG0ApSu_Dbf3ctCm0hZjMqkBgsz9Dpig6ecU1yQ2x5uhwul4eRwKYG9A8p7DqIHZaBBOdvJ3YiTyVaCCKQeV1ytqEDdHm5_sQHHspCqmH8zJs6_8gHNA9pSIafbSaZuxLF1p21A2RNv0GRAVG9P7VhsbWQGk4DdhZYCiddM/s320/IMG_3354.JPG" width="320" /></a></div><br /><div><br /></div><div>2. 連接負極</div></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinQgBWbXSMeQAwqcKZZP8o-lIBxybUwA96YT7yu3HrWDxxI_PWQ-azEXHpnNz8UCxZGjA2ZmbSQ8bkYLgonwiHxX6jetHXvXBPQLZXWJ8T_MNDAX7Q4_mb2OkG2OzkDmrfAtdG0U1svzLmeQSok6r6HWLzpgSuC-SDqZAoXyro2kFp5sbM_qWtGMyKZ0sv/s3264/IMG_3355.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinQgBWbXSMeQAwqcKZZP8o-lIBxybUwA96YT7yu3HrWDxxI_PWQ-azEXHpnNz8UCxZGjA2ZmbSQ8bkYLgonwiHxX6jetHXvXBPQLZXWJ8T_MNDAX7Q4_mb2OkG2OzkDmrfAtdG0U1svzLmeQSok6r6HWLzpgSuC-SDqZAoXyro2kFp5sbM_qWtGMyKZ0sv/s320/IMG_3355.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQwU4T0aOqXYclv7LCR-w1skaMy9Ug1b3aNq4B_RmPMsxHQWQhYryXd63fjyM6MesvJbDS1lku4AUbSRv7vJqOJ1K_Ae4Q6uxno56U0w2AD5oR_1CtC4E5nEv9RAReQHvVHAUCz9TVieVq_H3ZjaKEDJB0yW_YQmz-71bS5mjHjzpyAXwsvv6ztMLfkDo4/s3264/IMG_3356.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQwU4T0aOqXYclv7LCR-w1skaMy9Ug1b3aNq4B_RmPMsxHQWQhYryXd63fjyM6MesvJbDS1lku4AUbSRv7vJqOJ1K_Ae4Q6uxno56U0w2AD5oR_1CtC4E5nEv9RAReQHvVHAUCz9TVieVq_H3ZjaKEDJB0yW_YQmz-71bS5mjHjzpyAXwsvv6ztMLfkDo4/s320/IMG_3356.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">這三個實驗有符合大家的預期嗎?</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-38134627424107736602024-01-25T12:24:00.004+08:002024-01-25T12:24:59.539+08:00高靈敏磁場檢測器<div style="text-align: left;">這件事也是擱了好幾年</div><div style="text-align: left;">之前<a href="https://l0930984547.blogspot.com/2017/09/ns.html" target="_blank">簡單利用霍爾來檢驗磁場方向</a></div><div style="text-align: left;">但受限霍爾本身的特性</div><div style="text-align: left;">在通電之後,內部PN結的電子還是會稍微偏轉</div><div style="text-align: left;">因此即使附近沒有磁場,一樣會有一個輸出</div><div style="text-align: left;">所以偵測S會比較明顯一點</div><div style="text-align: left;">也需要兩個霍爾來分別偵測NS</div><div style="text-align: left;">這件事遲早要解決,但一拖就是7年了...</div><div style="text-align: left;"><br /></div><div style="text-align: left;">要提高靈敏度就不能只靠霍爾的電位來驅動</div><div style="text-align: left;">要給他一個基準來比較才可以</div><div style="text-align: left;">能用TL431當然最好</div><div style="text-align: left;">但測試的結果似乎直接用OPA就可以</div><div style="text-align: left;">LM358有兩組比較器</div><div style="text-align: left;">把這兩組的正向和反向並聯</div><div style="text-align: left;">當輸入某個電位時,兩組比較器剛好一個輸出高電位,一個輸出低電位</div><div style="text-align: left;">這樣就可以當作顯示器了</div><div style="text-align: left;">另外一組正反向也並聯</div><div style="text-align: left;">用精密電阻來調整兩組比較器的基準電位</div><div style="text-align: left;">LM356至少要5V才穩定</div><div style="text-align: left;">所以直接用鋰電掛boost</div><div style="text-align: left;">這樣VCC就會很穩,偵測也會更準</div><div style="text-align: left;">電路圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguXkd3tXn7sJleb4HhC5heXlxPyaEhzJaLjT0FZNtilAxVkWfuWVlLrvQ7QOh06uNJoRJ7SvYTyZ_gI0_MsZShM2TkodEJ9RBF7lQWO8Jl-BwWpIhLZ6Jzcj3AarUeWRw2Qj-wpXf7TxW03nXOOSspr-0hLqXEGnMD_JwBKX-L1CoYuFr_kVUrz5YwokQI/s3264/IMG_3320.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguXkd3tXn7sJleb4HhC5heXlxPyaEhzJaLjT0FZNtilAxVkWfuWVlLrvQ7QOh06uNJoRJ7SvYTyZ_gI0_MsZShM2TkodEJ9RBF7lQWO8Jl-BwWpIhLZ6Jzcj3AarUeWRw2Qj-wpXf7TxW03nXOOSspr-0hLqXEGnMD_JwBKX-L1CoYuFr_kVUrz5YwokQI/s320/IMG_3320.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">初步測試效果非常好</div><div style="text-align: left;">一開始先調整兩組比較器的電位</div><div style="text-align: left;">兩個指示LED都亮就是基準了</div><div style="text-align: left;">VCC越高會越好調整,但會犧牲靈敏度</div><div style="text-align: left;">一般小磁鐵在距離5-10公分就偵測得到</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpIKR0AWgBRrNT_2tWlCKj0FOxYMNpDAEmQBlRM8i8djO-hLvVKY4bD4zaQKGOKvYtgWf2neH8Aetqvn_Q9HeqVUeeaRqY4yPqo1fLiojq-ykRZzZ_g9zhK-rQyzHZwN4w_B4FYK2CkQH27DPOeA6mx4cloxHFGpvPUveuXu94oXwloZhLLjx6ReSTXX2S/s3264/IMG_3307.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpIKR0AWgBRrNT_2tWlCKj0FOxYMNpDAEmQBlRM8i8djO-hLvVKY4bD4zaQKGOKvYtgWf2neH8Aetqvn_Q9HeqVUeeaRqY4yPqo1fLiojq-ykRZzZ_g9zhK-rQyzHZwN4w_B4FYK2CkQH27DPOeA6mx4cloxHFGpvPUveuXu94oXwloZhLLjx6ReSTXX2S/s320/IMG_3307.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGbXAnVPaBmqmF6GDOx9Xpcak5BxLxmspvtK9R_YCHZp1ou4yOZn5rYqQ544N7IOvBgZPGZjAycFI4temR73j7-UOdtf3AiZJB83C_4oQir2qfSi0tmDgFXFC4zLHt-j6lpvSLSY4Zn5vbABrHP2wnHl9_ZK3-xAISyW7uocreArmdBIwgWWIdSLEaYfae/s3264/IMG_3308.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGbXAnVPaBmqmF6GDOx9Xpcak5BxLxmspvtK9R_YCHZp1ou4yOZn5rYqQ544N7IOvBgZPGZjAycFI4temR73j7-UOdtf3AiZJB83C_4oQir2qfSi0tmDgFXFC4zLHt-j6lpvSLSY4Zn5vbABrHP2wnHl9_ZK3-xAISyW7uocreArmdBIwgWWIdSLEaYfae/s320/IMG_3308.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4Akkj6NlKbu_Lxh8oC7ImW88Wb5OGAm67z5eKf5XeowTqcxjCJDcfArmGj8HP7h57Pj4NxBK6hQp8S12wNmHcUqpnd0-jCr2XM76H-HWKSjJhRG7kgiNXrGD6NV4xkzolZsOPfNG5ebNcYFHLb-yosCj5kNNuEchA8a_2OIP9gwUI9QOflCOka33voT5t/s3264/IMG_3309.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4Akkj6NlKbu_Lxh8oC7ImW88Wb5OGAm67z5eKf5XeowTqcxjCJDcfArmGj8HP7h57Pj4NxBK6hQp8S12wNmHcUqpnd0-jCr2XM76H-HWKSjJhRG7kgiNXrGD6NV4xkzolZsOPfNG5ebNcYFHLb-yosCj5kNNuEchA8a_2OIP9gwUI9QOflCOka33voT5t/s320/IMG_3309.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/zQZpwvAWNa8" width="320" youtube-src-id="zQZpwvAWNa8"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">理論OK就可以集成了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbGb_Rqmys43GHhVBYobeQ-X1BTyYbt0VMWe0F1pJRelp9FPlJnHxFwVQL5c8E-3XPYjrP10bbDExjERYvblIBJFrDpQepOyHE5At3rhOIoBhhaPmERozLy1XUT5PokBZjoGZYwIfdvmbKnbqBTkbFQcceLnmGc_Q14HVOWIrCV1axpgHclC7hTlzRpsXM/s3264/IMG_3310.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbGb_Rqmys43GHhVBYobeQ-X1BTyYbt0VMWe0F1pJRelp9FPlJnHxFwVQL5c8E-3XPYjrP10bbDExjERYvblIBJFrDpQepOyHE5At3rhOIoBhhaPmERozLy1XUT5PokBZjoGZYwIfdvmbKnbqBTkbFQcceLnmGc_Q14HVOWIrCV1axpgHclC7hTlzRpsXM/s320/IMG_3310.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDfMnzZIxlqeEf3jVJV5Pw7WlQrL1gD5XDzh5pfRlkQR6UHn6_b6wA7HUJC4Dz_A6x47xfhwQyRCa5p7Eg9civePD5yvy-NGVsRG5sW1YLerou340x2VWQnPzwXh8yhIOr5yVSd9tGWk5JlosxRMhnqvDND5CigW6IQ9cbe19k_ftRUJgu38QxqdmaoacH/s3264/IMG_3311.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDfMnzZIxlqeEf3jVJV5Pw7WlQrL1gD5XDzh5pfRlkQR6UHn6_b6wA7HUJC4Dz_A6x47xfhwQyRCa5p7Eg9civePD5yvy-NGVsRG5sW1YLerou340x2VWQnPzwXh8yhIOr5yVSd9tGWk5JlosxRMhnqvDND5CigW6IQ9cbe19k_ftRUJgu38QxqdmaoacH/s320/IMG_3311.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXk-cuVQbmXndhqDOM-XQv3JL2CXw95LQeJo8ByU4TzavyoHUJIO-IEQXW2dqLtNGDXT_EePqrLzsBuaDmnKhsvA2uWeLEBzOz4ff82AvFoyt__UDGcffKQl4FHnqABlFxiwqL2NRiZtZVmqmD0WfNydZcvTL5P1VaBEPiXaLO6oa6xR8q8DrLqtw6tY7C/s3264/IMG_3312.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXk-cuVQbmXndhqDOM-XQv3JL2CXw95LQeJo8ByU4TzavyoHUJIO-IEQXW2dqLtNGDXT_EePqrLzsBuaDmnKhsvA2uWeLEBzOz4ff82AvFoyt__UDGcffKQl4FHnqABlFxiwqL2NRiZtZVmqmD0WfNydZcvTL5P1VaBEPiXaLO6oa6xR8q8DrLqtw6tY7C/s320/IMG_3312.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6Of1V50TX1uzjRahZTiTHDyRmbAzCilmY7Trh9HKlH_zTaeSM92oYeF_2guqSu-PzsAZCDFs5xg_fVCVihc9LxB9HalXe9lCecdFwd4wVh0BoUGGunagEUUo9vJWROX13NxxyTZpge3xXxmhyphenhyphenFCk5aOY55pbmhgblyWYpZg0HYNzFBuVKeJ6f24r7yFVC/s3264/IMG_3313.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6Of1V50TX1uzjRahZTiTHDyRmbAzCilmY7Trh9HKlH_zTaeSM92oYeF_2guqSu-PzsAZCDFs5xg_fVCVihc9LxB9HalXe9lCecdFwd4wVh0BoUGGunagEUUo9vJWROX13NxxyTZpge3xXxmhyphenhyphenFCk5aOY55pbmhgblyWYpZg0HYNzFBuVKeJ6f24r7yFVC/s320/IMG_3313.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCisZH5P6Ob6DPAF1lpYWcPmtqU_ZojoakPcqaySyOXj-aUilyhVo8da253moHYd4hUC0DDxCNdP8XY7r09sP817ZtSeglm0zusT0Z0wpxGLi67T6G-zizdXsA6Yh5RlTEkeXzj9_wyWqjt1ipKuBXwAA2n874ya6d-mkuuK_hx3qycE0Ok91aPaT0c3SW/s3264/IMG_3314.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCisZH5P6Ob6DPAF1lpYWcPmtqU_ZojoakPcqaySyOXj-aUilyhVo8da253moHYd4hUC0DDxCNdP8XY7r09sP817ZtSeglm0zusT0Z0wpxGLi67T6G-zizdXsA6Yh5RlTEkeXzj9_wyWqjt1ipKuBXwAA2n874ya6d-mkuuK_hx3qycE0Ok91aPaT0c3SW/s320/IMG_3314.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBXyRnO3_30SGHbq3ELIFdP8oIBITzEEYf9ffZZy2MnSsgL2LF2P3jWxZAVVT6OAYbrvImPb0_QUwGortBj2dosa8uT_M4IsRhNwQAItizy8_H4ti5mcxbBl6uVaM43TYzAUejQOBzoFhEgLaOJYXWC_qFWDf8k0alfhW-jV5qaiE0fF_4GV1szRV4MJ5T/s3264/IMG_3315.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBXyRnO3_30SGHbq3ELIFdP8oIBITzEEYf9ffZZy2MnSsgL2LF2P3jWxZAVVT6OAYbrvImPb0_QUwGortBj2dosa8uT_M4IsRhNwQAItizy8_H4ti5mcxbBl6uVaM43TYzAUejQOBzoFhEgLaOJYXWC_qFWDf8k0alfhW-jV5qaiE0fF_4GV1szRV4MJ5T/s320/IMG_3315.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7ZMnyxTUKIP9scrY7Xn69mbMTZqiwGjdfc6iZMh63c1U7WErgqyWnn8dn2okk6r0NsvNM5lc6nyLhKf08BiwFkqvQLLQZPVmDtGMsHHgSrh_S5VlK_lYeXDC7E_tKnA2AwIxoPPiOcS4Ibusbsi_O2Xall_eRSJjYA8FCCmlYvNoh1lhIofLO5wfg2wHr/s3264/IMG_3316.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7ZMnyxTUKIP9scrY7Xn69mbMTZqiwGjdfc6iZMh63c1U7WErgqyWnn8dn2okk6r0NsvNM5lc6nyLhKf08BiwFkqvQLLQZPVmDtGMsHHgSrh_S5VlK_lYeXDC7E_tKnA2AwIxoPPiOcS4Ibusbsi_O2Xall_eRSJjYA8FCCmlYvNoh1lhIofLO5wfg2wHr/s320/IMG_3316.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2pP8hHnagp1h786gy-tKtkYpbBxMtYQQNg4azb8vR7NB8Kci9tmBmpVsrwRmtaWectIU3B9RlkUk7AtlQle2U9Pll82_1zf5N_TfOfGtn0RnYQS6NY2wB6-AaAs9vN2eMiX6Y-glf7xaCvw8tQqinvzTlt5yluy_Adp8IXL_CvJp728cT-dzAqStZ1Nky/s3264/IMG_3317.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2pP8hHnagp1h786gy-tKtkYpbBxMtYQQNg4azb8vR7NB8Kci9tmBmpVsrwRmtaWectIU3B9RlkUk7AtlQle2U9Pll82_1zf5N_TfOfGtn0RnYQS6NY2wB6-AaAs9vN2eMiX6Y-glf7xaCvw8tQqinvzTlt5yluy_Adp8IXL_CvJp728cT-dzAqStZ1Nky/s320/IMG_3317.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-CT8VxTfrdMbLCh6s7tFskE3Yh6-PZTB3zNbQ8JkuE4ST4OY4uNm37Y-wjVhv-ymGoHpMJQKma2_YMf_AwlxP5NywMwCUBgYGT8uzMoQGy-G9f7JpEiK3sEWbDeMmSyxRQLZFElyb3cz3Cyq3sAJ325MDpJjPa7ZVSubjpFU7P8jOyqQWTf60nYda_Cxj/s3264/IMG_3318.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-CT8VxTfrdMbLCh6s7tFskE3Yh6-PZTB3zNbQ8JkuE4ST4OY4uNm37Y-wjVhv-ymGoHpMJQKma2_YMf_AwlxP5NywMwCUBgYGT8uzMoQGy-G9f7JpEiK3sEWbDeMmSyxRQLZFElyb3cz3Cyq3sAJ325MDpJjPa7ZVSubjpFU7P8jOyqQWTf60nYda_Cxj/s320/IMG_3318.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">7年...不晚不晚!!</div><div style="text-align: left;"><br /></div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-17259943307602962252024-01-21T12:16:00.003+08:002024-01-21T12:16:44.801+08:00吹氣燈<div style="text-align: left;">這個吹氣燈等了好久才開始第二階段實驗</div><div style="text-align: left;">原本利用熱電阻和光藕的概念來作</div><div style="text-align: left;">可以<a href="https://l0930984547.blogspot.com/2021/01/blog-post_9.html" target="_blank">參考這篇</a></div><div style="text-align: left;">當然也有其他的方法</div><div style="text-align: left;">氣壓是一個不作的選擇</div><div style="text-align: left;">手邊只有電容式麥克風</div><div style="text-align: left;">基本上就是利用氣壓改變電容內部的電極距離來控制電壓</div><div style="text-align: left;">因此應該可以當作sensor</div><div style="text-align: left;">簡單來說就是利用兩個電晶體將訊號放大</div><div style="text-align: left;">再輸入4017的單鍵開關</div><div style="text-align: left;">電路圖如下</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEju9RdQQpMSXFJtBrHuLPNIycUqq16Y7z9FJUKDhDkia4Cepegp99Q08pkaWlVVtw_W4VWz0QF2SlEkmmGasXKuoBZBWf5maSKow_AWnW_x716mtu0f9ZLYqCTu97k6pi3UCtBT302rEkFA0RcA6cTMmieQtP5RERuu9GDBN0sfLWWlTAxcyKHAlZAOup0a/s3264/IMG_3291.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEju9RdQQpMSXFJtBrHuLPNIycUqq16Y7z9FJUKDhDkia4Cepegp99Q08pkaWlVVtw_W4VWz0QF2SlEkmmGasXKuoBZBWf5maSKow_AWnW_x716mtu0f9ZLYqCTu97k6pi3UCtBT302rEkFA0RcA6cTMmieQtP5RERuu9GDBN0sfLWWlTAxcyKHAlZAOup0a/s320/IMG_3291.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjELZvZRX8USCds9hDPW-Z4vn3D8eOcVHjB55jUu8NCyDwV0MX_BeZ8NtaX2TLGJ3HBEcTfg2NY0bMUkNpOykX3R7piAmVyjvIy0tcaF1NERQniiTUJ1ZTEtMq3LbSEW4vcKFktdelAzvjFfiVVyDnTP4BuB4N5AAGCJ1PAZqGJTCnVhYVQRCdxqPil_usM/s3264/IMG_3289.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjELZvZRX8USCds9hDPW-Z4vn3D8eOcVHjB55jUu8NCyDwV0MX_BeZ8NtaX2TLGJ3HBEcTfg2NY0bMUkNpOykX3R7piAmVyjvIy0tcaF1NERQniiTUJ1ZTEtMq3LbSEW4vcKFktdelAzvjFfiVVyDnTP4BuB4N5AAGCJ1PAZqGJTCnVhYVQRCdxqPil_usM/s320/IMG_3289.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhP0s1lJsWqu7C_b-R8ET9tLksZ7zYH_ofOzgjJuZPVHYx1hohTWuza0Al-Vnhh2fhQQ8WCse79pzEpnUSRdD3Jcte8zLsYLNRT0up6H8xkg69TvOuUgIoEBtgJe2RmUBXnEG9Be2mZjGXzxkP_oEut-5Sin88K8mZbR5-EcWh5KhkIK4hNm7x0HRhMkeZ6/s3264/IMG_3290.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhP0s1lJsWqu7C_b-R8ET9tLksZ7zYH_ofOzgjJuZPVHYx1hohTWuza0Al-Vnhh2fhQQ8WCse79pzEpnUSRdD3Jcte8zLsYLNRT0up6H8xkg69TvOuUgIoEBtgJe2RmUBXnEG9Be2mZjGXzxkP_oEut-5Sin88K8mZbR5-EcWh5KhkIK4hNm7x0HRhMkeZ6/s320/IMG_3290.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">R1和C1需要匹配,才能調整到mic最佳的靈敏度</div><div style="text-align: left;">4017的pin14是脈衝訊號,不能持續高電位</div><div style="text-align: left;">所以要有R2當作C2的放電電阻</div><div style="text-align: left;">LED1在pin3當作電源指示燈</div><div style="text-align: left;">LED2才是主要的燈</div><div style="text-align: left;">pin15連接pin4就可以讓pin3和pin2循環</div><div style="text-align: left;">影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/MwTDkhDnd7M" width="320" youtube-src-id="MwTDkhDnd7M"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">mic有點小,所以有時會吹不準</div><div style="text-align: left;">但意思到了</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-71986246290654762892024-01-16T14:47:00.003+08:002024-01-16T14:47:30.957+08:00安培計的分壓電路_維修小電表貪便宜在網路上買了這個電表<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRm5-6DQNED5PFLdABqF7V1xv3BBjNb9ZF3QyPIEo97Fa-GwXtdLcCDaDBY9oJfOkR8ktXj5d9-GIhsTCui8WVEKFpp0VQ0GsXHlFI5uTzAuj_fqHu90RUFqP-D_fUhABFHOkpkqBAggIkICkbd7HVFUkbVdzgk3gypdMKTM8Xg0qKjZi8IU20p1wquV3Z/s3264/IMG_3282.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRm5-6DQNED5PFLdABqF7V1xv3BBjNb9ZF3QyPIEo97Fa-GwXtdLcCDaDBY9oJfOkR8ktXj5d9-GIhsTCui8WVEKFpp0VQ0GsXHlFI5uTzAuj_fqHu90RUFqP-D_fUhABFHOkpkqBAggIkICkbd7HVFUkbVdzgk3gypdMKTM8Xg0qKjZi8IU20p1wquV3Z/s320/IMG_3282.JPG" width="320" /></a></div><br /><div><br /></div><div>果然就吃鱉了...</div><div>相對誤差竟然將近100% !!</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVVBPThOqzjGU-Z2xYyD9zUQ2yf8HG29Ook8c7HJzaMIPpfKv5-SXP3KufCBY2O3jHIjmr4Td6tlX3sSSW7Fk9GBRJepEBuNNlDGX1wA4qOfhxbX4emV5gJJDVRQ-HWtCIrbcIjgZxjtAOxxL6KLTjKS5Ycqu-02YLOeCMfAXJ_naUBROXfnY7xXHcGL-T/s3264/IMG_3263.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVVBPThOqzjGU-Z2xYyD9zUQ2yf8HG29Ook8c7HJzaMIPpfKv5-SXP3KufCBY2O3jHIjmr4Td6tlX3sSSW7Fk9GBRJepEBuNNlDGX1wA4qOfhxbX4emV5gJJDVRQ-HWtCIrbcIjgZxjtAOxxL6KLTjKS5Ycqu-02YLOeCMfAXJ_naUBROXfnY7xXHcGL-T/s320/IMG_3263.JPG" width="320" /></a></div><br /><div><br /></div><div>雖然可以從背後微調進入電流的分壓值</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhn7Le5f5avKHREMQtov_s3Z2glMyJ1TgU9bkDu5_Mx6COxMJBTottLyyVDIKRakNyng_1Ib0RJl-mGfqe7fUtceqtyuyNla5UFc5teeRZBL1dzP4joUBElUBV9biqm39wU45XwMdQBQVAJvfgUAI4fLt_8VIDOaXEB5qcIPHDm1IMlvpEtuc5pOeIy8jQp/s3264/IMG_3265.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhn7Le5f5avKHREMQtov_s3Z2glMyJ1TgU9bkDu5_Mx6COxMJBTottLyyVDIKRakNyng_1Ib0RJl-mGfqe7fUtceqtyuyNla5UFc5teeRZBL1dzP4joUBElUBV9biqm39wU45XwMdQBQVAJvfgUAI4fLt_8VIDOaXEB5qcIPHDm1IMlvpEtuc5pOeIy8jQp/s320/IMG_3265.JPG" width="320" /></a></div><br /><div><br /></div><div>但通常只有誤差在10%以內才有效</div><div>如果有重要需求,真的要考慮清楚啊~~</div><div>實體店家一定比較貴,但良率絕對是100%</div><div>丟也不是,用也不是</div><div>就修修看了</div><div><br /></div><div>基本上伏特計沒問題</div><div>問題出在安培計</div><div>要維修就要先知道原理</div><div>有關電表的電路原理可以<a href="https://l0930984547.blogspot.com/2019/02/blog-post_19.html" target="_blank">先看這篇</a></div><div>這種串聯式的安培計通常都是用分流的模式</div><div>比較少用取樣(取樣的方法可以<a href="https://l0930984547.blogspot.com/2023/01/ntc_12.html">參考這篇</a>)</div><div>在額定10A的情況下,分流電路的電阻非常小</div><div>小到無法用一般三用電表測量</div><div>只要有細微差別,分流出來的電流就會差很多</div><div>所以可以看到有些電表的分流電路會有缺角或是焊接</div><div>這不是缺陷或是瑕疵,其實是工程師在微調分路電阻</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXqUmsZ8S1LC1cn2tZbg8r9oOV12xggIun8sI0eBwT_oCSxwPoHhQWPV5ilnvZTWkNy2xGwW6gXGaATDJ4L1uz7VHDtNa39_VoKe7RUUC3CnH6jJ_kcVrBZ92BnRyzwHHoMfYIpDIHruHTzRUVlMCNOO4nWtenvQULZX8Z2y8w30UcZs24E4k-P66w4bwY/s3264/IMG_3283.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXqUmsZ8S1LC1cn2tZbg8r9oOV12xggIun8sI0eBwT_oCSxwPoHhQWPV5ilnvZTWkNy2xGwW6gXGaATDJ4L1uz7VHDtNa39_VoKe7RUUC3CnH6jJ_kcVrBZ92BnRyzwHHoMfYIpDIHruHTzRUVlMCNOO4nWtenvQULZX8Z2y8w30UcZs24E4k-P66w4bwY/s320/IMG_3283.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbs6tXs0_JQZk6yk9hDJkM5hHFL_x0N2nyFphnwgHCDYp73CjVN-zv-F61O07k_MdK2ZZdRb041lyKA8AYy50jPuYOt90H5drxRnfgrnRLq823Pvha1apL2pTj02wxdGU5s6vAeFqo4dwJyn1AJvhG-MCZITuneCi1A8XEflhtzhPghP6AhF56GSKUymQ3/s3264/IMG_3285.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbs6tXs0_JQZk6yk9hDJkM5hHFL_x0N2nyFphnwgHCDYp73CjVN-zv-F61O07k_MdK2ZZdRb041lyKA8AYy50jPuYOt90H5drxRnfgrnRLq823Pvha1apL2pTj02wxdGU5s6vAeFqo4dwJyn1AJvhG-MCZITuneCi1A8XEflhtzhPghP6AhF56GSKUymQ3/s320/IMG_3285.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfHh1db_Gngpu9cgC94vWX-dzuVJmxhQXm0mIxEiz5x12JGIU69IXD1wvoRfETPZQW3lkVb4v8lRKC5fhY4sOqR4VyRTgxWD_zmCsDuWSIatF5UJTUo6Wvfm864gJF6CQ9bzK53nSLQC6_7tBOGtldt6HIkw4cD1emYDIWNHbh5spSmjUdO5ft1udN4uRa/s3264/IMG_3286.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3264" data-original-width="2448" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfHh1db_Gngpu9cgC94vWX-dzuVJmxhQXm0mIxEiz5x12JGIU69IXD1wvoRfETPZQW3lkVb4v8lRKC5fhY4sOqR4VyRTgxWD_zmCsDuWSIatF5UJTUo6Wvfm864gJF6CQ9bzK53nSLQC6_7tBOGtldt6HIkw4cD1emYDIWNHbh5spSmjUdO5ft1udN4uRa/s320/IMG_3286.JPG" width="240" /></a></div><br /><div><br /></div><div>原本的電表測出來的電流太小</div><div>表示分路電阻太小了,那就想辦法加大電阻</div><div>一般電表會用缺角或焊接的方法來做細微調整</div><div>所以先嘗試將分路缺角還是只增加了一點點</div><div>只好重新安裝一條電阻相對較大的分路</div><div>順便就作個實驗吧</div><div>結果如下</div><div>原先的分路電線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjJaiuF7VD_XSjNSwNH5q7sx86w2lAIfC05DHLG1luhRzv1XRf0QbGm8jaPsrTnxzBVxAxMy-6AclSLGQzmb7IpSTG8GL8frO61Sydw6F-8geJaSKKbe0722Fsu5ZscX__5dlQk6dXjtOHBqNEjqDWnMjJt3rCdsXjpOmOO91wuDIvMLuPvf2DNGZkwnj1/s3264/IMG_3264.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjJaiuF7VD_XSjNSwNH5q7sx86w2lAIfC05DHLG1luhRzv1XRf0QbGm8jaPsrTnxzBVxAxMy-6AclSLGQzmb7IpSTG8GL8frO61Sydw6F-8geJaSKKbe0722Fsu5ZscX__5dlQk6dXjtOHBqNEjqDWnMjJt3rCdsXjpOmOO91wuDIvMLuPvf2DNGZkwnj1/s320/IMG_3264.JPG" width="320" /></a></div><br /><div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-z6w_h6bTMwGwbzP1FGilGJa6H1GGqU2AXTlLpZ4J5pwmid0wnIXuF0E-EG-5obW7mj6eHv2JZXpRoIdwo4P1fJ9Tr6v0zfqj3nd06tEJtlz_9e1Kd49fLClH1-Q-QcvylNXOEVU_hZ4-KDRrw4KhD40Y5_8q8v8e6pc3ytyTQ-3SAnNhyphenhyphen5mwD4D0qvsM/s3264/IMG_3263.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-z6w_h6bTMwGwbzP1FGilGJa6H1GGqU2AXTlLpZ4J5pwmid0wnIXuF0E-EG-5obW7mj6eHv2JZXpRoIdwo4P1fJ9Tr6v0zfqj3nd06tEJtlz_9e1Kd49fLClH1-Q-QcvylNXOEVU_hZ4-KDRrw4KhD40Y5_8q8v8e6pc3ytyTQ-3SAnNhyphenhyphen5mwD4D0qvsM/s320/IMG_3263.JPG" width="320" /></a></div><br /></div><div><br /></div><div>缺角的分路電線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRhTiQGdvMJMZv1f_XXAsS3h0KhWrOhh_3YH0aiae0zJvGx4xyAZUTVADoOYDOsH9OpAXBK5VzEwnzHROl0l9zRHrZchMq7TONdrVPn1Q1qwNC_S4PqrJE9wx7eASycFXAvj90kbY1vOeqOV2E65d700T1M_N3MD60noziUxm0i2W40YZHkvRGlvFwQDrC/s3264/IMG_3268.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRhTiQGdvMJMZv1f_XXAsS3h0KhWrOhh_3YH0aiae0zJvGx4xyAZUTVADoOYDOsH9OpAXBK5VzEwnzHROl0l9zRHrZchMq7TONdrVPn1Q1qwNC_S4PqrJE9wx7eASycFXAvj90kbY1vOeqOV2E65d700T1M_N3MD60noziUxm0i2W40YZHkvRGlvFwQDrC/s320/IMG_3268.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjy3_s7GsbvtWZDCYlCXPbsnE46lV5Lgj58a2XVUZK0KJZ-dLBhc-SvG0pt1fYESdBfWl6-qPq1QRCVVKq_0o3mrxoXtBzPzhmMTGHXvHbuhiuf7UXC7yXmCVRWO8AIXQJEmuV5ECqlF4fsxevMZPYl3uVNZrfKIpN5vyEOD1RZLkgoYJ8TXMM6tpJ0b_fs/s3264/IMG_3267.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjy3_s7GsbvtWZDCYlCXPbsnE46lV5Lgj58a2XVUZK0KJZ-dLBhc-SvG0pt1fYESdBfWl6-qPq1QRCVVKq_0o3mrxoXtBzPzhmMTGHXvHbuhiuf7UXC7yXmCVRWO8AIXQJEmuV5ECqlF4fsxevMZPYl3uVNZrfKIpN5vyEOD1RZLkgoYJ8TXMM6tpJ0b_fs/s320/IMG_3267.JPG" width="320" /></a></div><br /><div><br /></div><div>0.15mm,4公分漆包線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAgfmeyTAWz3YKKwwSq45KmGtFlkha5yENfxyxjMpPsy-ZgbFMw9ez-TzqB9xQ1bJe3jw8GLL_pVVj1p52iJR9jRzVaDP1ahwHFNvDX33Tu5ud_Fej_felNZU0ANFPFzVxV7NbvC588R-ENvhVL9uyXVs6jgDU09AHjRPE9okBbNMwIfW_EZTiWG-1bi2N/s3264/IMG_3272.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAgfmeyTAWz3YKKwwSq45KmGtFlkha5yENfxyxjMpPsy-ZgbFMw9ez-TzqB9xQ1bJe3jw8GLL_pVVj1p52iJR9jRzVaDP1ahwHFNvDX33Tu5ud_Fej_felNZU0ANFPFzVxV7NbvC588R-ENvhVL9uyXVs6jgDU09AHjRPE9okBbNMwIfW_EZTiWG-1bi2N/s320/IMG_3272.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw5KEsJdHeU-2vIuLV88kYB2hxWed2K5JRDNOS8U8VqhVQN0Uvj0iJioDn-fXw7g8Dos60oFDbsjYxSMS7FZLlISZyQkFSrwubtNrY4090YKoXazPCWT81h8XDsCgwJo0Z2l7VzUu_FWfepNOx_nIAyOI5XLPZgSOGakd7WI5NkAC556AfLRzJhnuITWmK/s3264/IMG_3273.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw5KEsJdHeU-2vIuLV88kYB2hxWed2K5JRDNOS8U8VqhVQN0Uvj0iJioDn-fXw7g8Dos60oFDbsjYxSMS7FZLlISZyQkFSrwubtNrY4090YKoXazPCWT81h8XDsCgwJo0Z2l7VzUu_FWfepNOx_nIAyOI5XLPZgSOGakd7WI5NkAC556AfLRzJhnuITWmK/s320/IMG_3273.JPG" width="320" /></a></div><br /><div><br /></div><div>0.15mm,2公分漆包線</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWy4gUG_IfWvXy_NxZfVZqk6xX_djx3EZ3OHIpfQKBglZerDS5A6PDZ4nQXVcCbX1UcVDKVpyz3nPNN_X-qfCag2c5TKQ_D7RwV60ZIurYS9Q7BAkxwpTZ2jmmxlUUBRggLcqhs5QyPGoqw7orHG8TtTrLHJUs7AhSrsEuHF7juBbYnHNwC91B1IoW-EHD/s3264/IMG_3274.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWy4gUG_IfWvXy_NxZfVZqk6xX_djx3EZ3OHIpfQKBglZerDS5A6PDZ4nQXVcCbX1UcVDKVpyz3nPNN_X-qfCag2c5TKQ_D7RwV60ZIurYS9Q7BAkxwpTZ2jmmxlUUBRggLcqhs5QyPGoqw7orHG8TtTrLHJUs7AhSrsEuHF7juBbYnHNwC91B1IoW-EHD/s320/IMG_3274.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEge8_vvZCvGEEBOW3EKgeOga8Wo32Ok_kvZz9jfKhx5o-DYvtJ0OJXWvHMomHzxXX1iEs3fdysYGenqiMEAQfv2lxnBeIVEyXj7AhK1aM0kOfMkhHPlM7M1baXiZh_JpHVMc5EHf2jOIMzHsONhj0G2-6zy3Cf-4acd2INZq0SN69QiIR2pooe6pqULxC0x/s3264/IMG_3275.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEge8_vvZCvGEEBOW3EKgeOga8Wo32Ok_kvZz9jfKhx5o-DYvtJ0OJXWvHMomHzxXX1iEs3fdysYGenqiMEAQfv2lxnBeIVEyXj7AhK1aM0kOfMkhHPlM7M1baXiZh_JpHVMc5EHf2jOIMzHsONhj0G2-6zy3Cf-4acd2INZq0SN69QiIR2pooe6pqULxC0x/s320/IMG_3275.JPG" width="320" /></a></div><br /><div><br /></div><div>可以觀察到分路電線越細,越長(電阻越大)</div><div>電表呈現的電流就越大</div><div>慢慢嘗試,找到0.15mm,0.8公分漆包線</div><div>測出來的電流和我的三用電表幾乎一致</div><div>那就是她了~~</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDTpsdochzaXqIj5QgzQIz0EDFd8VZ9LzWKqj0C4PnZV0nRTJ5f3LFjK94XSrEcVkfPKo8sre1237AZ2UNiNUtfeZv4g4O85XuHJ0CWu2zrJODaSjN2Smd10FvYHw0GKtEwqpzSWTClfcYGMfhQI3R-8DqrkJMreWzaA_Gf1hTNJ8PaXYisagT1q1LpD_G/s3264/IMG_3277.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDTpsdochzaXqIj5QgzQIz0EDFd8VZ9LzWKqj0C4PnZV0nRTJ5f3LFjK94XSrEcVkfPKo8sre1237AZ2UNiNUtfeZv4g4O85XuHJ0CWu2zrJODaSjN2Smd10FvYHw0GKtEwqpzSWTClfcYGMfhQI3R-8DqrkJMreWzaA_Gf1hTNJ8PaXYisagT1q1LpD_G/s320/IMG_3277.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7ywHyW2xVYem0xlQNf6BexKVTAUBqHNF58yb1G628rBO2PYSMgI0-s1nxEUvMdyapLB4ko1GKgpeKvgdLcU4HBARND_R_lRYq8Nt8z6NpMHvJeMgq_1eZ-vbNIU1pYiBZThx5d3PWkv3ZB9t8djyjCbMAcNW-lINaZV6c5bDzB237Yh_qv140o1U4I3yP/s3264/IMG_3278.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7ywHyW2xVYem0xlQNf6BexKVTAUBqHNF58yb1G628rBO2PYSMgI0-s1nxEUvMdyapLB4ko1GKgpeKvgdLcU4HBARND_R_lRYq8Nt8z6NpMHvJeMgq_1eZ-vbNIU1pYiBZThx5d3PWkv3ZB9t8djyjCbMAcNW-lINaZV6c5bDzB237Yh_qv140o1U4I3yP/s320/IMG_3278.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgO4V24GYtaF3rfEF6ewvwN7fzmL9p8aQ_n4Am19kR4aBV0GmO5fQn2k9pKyA4FpQE-EDRKzFVxVb9HIy5bBXSgn4mLxAP8cRTeswztOZcS_-UBXU35Ow2eePXNiW8hZeqervq1WFhYY61NrX0JnZMhtZBKdl95e-DIBntl9OCwm1NoqjYGs6MHtfXR3LHa/s3264/IMG_3279.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgO4V24GYtaF3rfEF6ewvwN7fzmL9p8aQ_n4Am19kR4aBV0GmO5fQn2k9pKyA4FpQE-EDRKzFVxVb9HIy5bBXSgn4mLxAP8cRTeswztOZcS_-UBXU35Ow2eePXNiW8hZeqervq1WFhYY61NrX0JnZMhtZBKdl95e-DIBntl9OCwm1NoqjYGs6MHtfXR3LHa/s320/IMG_3279.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVyskDF8tM3WmErL2qme3uLAS496QbkvfR6-bHw1vzxq9Qa3osZMzhLgfDqCG8dUXDTKk4uAzOIapY0T_JvPAO-TGds5AEyxOIbbWziR0IxwXgFrJT3DDmuRPz_ZwWCwIUMjc4T3zNiEP0bAnbi-vkKNRxCbCoIBPL9xkWCI6oK1APpaGscBU-lRs5p-CD/s3264/IMG_3280.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVyskDF8tM3WmErL2qme3uLAS496QbkvfR6-bHw1vzxq9Qa3osZMzhLgfDqCG8dUXDTKk4uAzOIapY0T_JvPAO-TGds5AEyxOIbbWziR0IxwXgFrJT3DDmuRPz_ZwWCwIUMjc4T3zNiEP0bAnbi-vkKNRxCbCoIBPL9xkWCI6oK1APpaGscBU-lRs5p-CD/s320/IMG_3280.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipEbTCDyp9OApQXRwdXekD8kd2qp8j5gss3XkSUMnflwZIDXSyS2VSPBlouLFcPb9QkLZglauRcIe4_nL5SNp7kcTX1Ub0hf1glC8uAKhk-1sl8x67z_D_geSg3VkJxfkY2M2MT8Y_Eq9iW525KTk12c8L_fO2f5AQqKSsYAwW4Bnu9psxRx8m49-PkKXV/s3264/IMG_3281.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipEbTCDyp9OApQXRwdXekD8kd2qp8j5gss3XkSUMnflwZIDXSyS2VSPBlouLFcPb9QkLZglauRcIe4_nL5SNp7kcTX1Ub0hf1glC8uAKhk-1sl8x67z_D_geSg3VkJxfkY2M2MT8Y_Eq9iW525KTk12c8L_fO2f5AQqKSsYAwW4Bnu9psxRx8m49-PkKXV/s320/IMG_3281.JPG" width="320" /></a></div><br /><div><br /></div><br />Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-45433047313200041022024-01-14T17:12:00.003+08:002024-01-15T10:14:57.458+08:00馬達的功率_電路篇<div style="text-align: left;">搞定整體的<a href="https://l0930984547.blogspot.com/2024/01/blog-post_13.html" target="_blank">原理</a>和<a href="https://l0930984547.blogspot.com/2024/01/blog-post_71.html" target="_blank">概念</a>之後</div><div style="text-align: left;">再來解決最無聊的問題,就是這個控制電路是如何設計的</div><div style="text-align: left;">一般電腦風扇的電路因為只要旋轉就好</div><div style="text-align: left;">所以通常都很簡單</div><div style="text-align: left;">電路圖如下所示</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwz4LITdX-tK3yQiOPnwpMuHVBZxSBK3p5WboRaZ0-zbsar0yrxU2sqY1IfZDt5GTr5usS6nR32pgSTg5jXzE6P6qqaGSxJmx5zwIuxgEFxjwgqctkBSsO1_St03hLPdcRyc6z9CecETgWbXod4dESacU-Zuj6BNl3V7uZYG5Twyre4ZtFC25LVQy7BsUB/s3264/IMG_3260.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwz4LITdX-tK3yQiOPnwpMuHVBZxSBK3p5WboRaZ0-zbsar0yrxU2sqY1IfZDt5GTr5usS6nR32pgSTg5jXzE6P6qqaGSxJmx5zwIuxgEFxjwgqctkBSsO1_St03hLPdcRyc6z9CecETgWbXod4dESacU-Zuj6BNl3V7uZYG5Twyre4ZtFC25LVQy7BsUB/s320/IMG_3260.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">我們為了方便演示,把線圈換成LED</div><div style="text-align: left;">R1電阻是霍爾的限流</div><div style="text-align: left;">R2、R3主要是要分壓給控制LED1的電晶體</div><div style="text-align: left;">R4是LED2電晶體的限流</div><div style="text-align: left;">在沒有外磁影響霍爾的情況下</div><div style="text-align: left;">霍爾一樣會有一個電壓輸出</div><div style="text-align: left;">調整R2、R3、R4的比例,就可以平均兩組線圈(LED)的輸出功率</div><div style="text-align: left;">因此這也是為甚麼我們當初把風扇拿掉的時候有一個很大電流輸出的原因</div><div style="text-align: left;">因為這個時候兩組線圈都是導通的</div><div style="text-align: left;">當S接近霍爾的時候,霍爾輸出高電位</div><div style="text-align: left;">LED1的電晶體導通,電流不會經過R4</div><div style="text-align: left;"><br /></div><div style="text-align: left;">當N接近霍爾的時候,霍爾輸出低電位</div><div>LED1的電晶體不導通</div><div>電流經過R4導通LED2的電晶體</div><div>如此就可以藉由NS極的接近分別導通兩組線圈了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTMFhZwJm8K79glJ05xRCjY1aFr0IOgeU168URZ6lGpVvBCRmvaJ12ZcsyXi3lodZVmozX3B01A7-MXvAvfia3CEB4rVX_mBA1LezH_Ti5vOZHtgww1ePRNWk4jSUbbs90DRdiS7NoL8M73arihlWg4E77vwdfbzv_p2G9zT6Vq4fglxE0BqKLwqy-SEZ-/s3264/IMG_3262.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTMFhZwJm8K79glJ05xRCjY1aFr0IOgeU168URZ6lGpVvBCRmvaJ12ZcsyXi3lodZVmozX3B01A7-MXvAvfia3CEB4rVX_mBA1LezH_Ti5vOZHtgww1ePRNWk4jSUbbs90DRdiS7NoL8M73arihlWg4E77vwdfbzv_p2G9zT6Vq4fglxE0BqKLwqy-SEZ-/s320/IMG_3262.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0nkB7vFRHAzg0JHfsoim1UXMIQGZ06II9BIdAIL2FiUaXhOcg04VnyIalYL5n_rM8qkKMHqzwMyx9kp5PQls_dvwkWG_kro34u2ve3zOd4ciFwOkz9qkumSuI-c9ngC7SsUAVmOoP0k0TyVGL13f3QwMSmZ7ZnO39-A3Py0aUbLgfoKfV6CQYW88L-sdl/s3264/IMG_3258.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0nkB7vFRHAzg0JHfsoim1UXMIQGZ06II9BIdAIL2FiUaXhOcg04VnyIalYL5n_rM8qkKMHqzwMyx9kp5PQls_dvwkWG_kro34u2ve3zOd4ciFwOkz9qkumSuI-c9ngC7SsUAVmOoP0k0TyVGL13f3QwMSmZ7ZnO39-A3Py0aUbLgfoKfV6CQYW88L-sdl/s320/IMG_3258.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpfiP2cXZyHMj-iAFJccX1pwJee-OnjwCHYYBFqObn09HcaMjPU0HynIGhJsSrv3sykwilKv4jiDISKsrzbIV9qdDS_Uvm_bc-M_SbAoZIGNbioI90wqTedUXI8Zb2GNX7UUm-JzZoNZaZJXeghwghx9fet86cTKbAcO4KzWpiFkftUXQE11gPILZgjq9Y/s3264/IMG_3259.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpfiP2cXZyHMj-iAFJccX1pwJee-OnjwCHYYBFqObn09HcaMjPU0HynIGhJsSrv3sykwilKv4jiDISKsrzbIV9qdDS_Uvm_bc-M_SbAoZIGNbioI90wqTedUXI8Zb2GNX7UUm-JzZoNZaZJXeghwghx9fet86cTKbAcO4KzWpiFkftUXQE11gPILZgjq9Y/s320/IMG_3259.JPG" width="320" /></a></div><br /><div><br /></div><div>影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/qpm6v8HuX8M" width="320" youtube-src-id="qpm6v8HuX8M"></iframe></div><br /><div><br /></div><div>那有沒有辦法可以讓拿掉風扇時(沒有外磁)不要輸出這麼大的功率?</div><div>有了電路原理,要改當然就沒問題了</div><div>最根本的方法就是降低待機電壓(用運轉電流來設計)</div><div>或用較簡單的方法,增加coil1(LED1)的驅動電壓</div><div style="text-align: left;">我們在LED1正極前方再增加一條二極體增加0.7V的電壓</div><div style="text-align: left;">可以看出沒有外磁時,LED亮度減弱了</div><div style="text-align: left;">但必須犧牲的就是風扇上去之後</div><div style="text-align: left;">線圈的磁場也會比較小,轉速會稍稍下降</div><div style="text-align: left;">影片如下</div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="266" src="https://www.youtube.com/embed/b77CDRZK1eQ" width="320" youtube-src-id="b77CDRZK1eQ"></iframe></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">不過正常不會有人拿下風扇</div><div style="text-align: left;">工程師就不會考量這種無聊的待機設計了</div>Unknownnoreply@blogger.comtag:blogger.com,1999:blog-6646693892946240141.post-22692093528044996062024-01-13T20:15:00.008+08:002024-01-15T09:56:36.113+08:00馬達的功率_解決篇<div style="text-align: left;">了解了<a href="https://l0930984547.blogspot.com/2024/01/blog-post_13.html" target="_blank">無刷馬達的工作原理</a>之後</div><div style="text-align: left;">這個功率的問題應該就比較容易理解了</div><div style="text-align: left;">當我們把風扇拿起來</div><div style="text-align: left;">基本上霍爾在沒有外磁影響的情況下線圈還是會過電</div><div style="text-align: left;">綠色線圈產生N極,紫色線圈產生S極</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhk_tgOxGjiNjr6K3e2y68bOp-gbBiANuHt_QfiANJpPDuhmx46tHacLhp3ZrtGUdisfbM3VsOKfQxww3DnAc7VWJ1DI-TKehE5hZcnK36cOdk4pMpLBrLDJK7suWanGmjHwk1aR5F1lPfK0woi3nAYUs7ncoezC8en6Gqy7iavi-Lnnb6pm4GAGtcZqlO6/s3264/IMG_3257.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3264" data-original-width="2448" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhk_tgOxGjiNjr6K3e2y68bOp-gbBiANuHt_QfiANJpPDuhmx46tHacLhp3ZrtGUdisfbM3VsOKfQxww3DnAc7VWJ1DI-TKehE5hZcnK36cOdk4pMpLBrLDJK7suWanGmjHwk1aR5F1lPfK0woi3nAYUs7ncoezC8en6Gqy7iavi-Lnnb6pm4GAGtcZqlO6/s320/IMG_3257.JPG" width="240" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">為甚麼?這是霍爾特性和電路設計的問題</div><div style="text-align: left;">以後再說</div><div style="text-align: left;">因此我們直接對無刷馬達通電(沒有風扇)</div><div style="text-align: left;">會有一個0.19A的電流</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGEQN0__nT_nBkd1FR07Hu2gUZ4RrUeHGzb2VLiWmkznyNNg7P8VKQbZs5yRDAXyV_Do0gBISGRoHXTMIq36Wab-FRiyOxGC9SEk4-qCP1Aw59-3Z9K4EzwYY6Kz57S6h7HaxXE3MXDfG6qvZEFzG6xyhkdyx7iAAZwKffjqrtmnANhU7e4VUwczlWYObo/s3264/IMG_3228.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGEQN0__nT_nBkd1FR07Hu2gUZ4RrUeHGzb2VLiWmkznyNNg7P8VKQbZs5yRDAXyV_Do0gBISGRoHXTMIq36Wab-FRiyOxGC9SEk4-qCP1Aw59-3Z9K4EzwYY6Kz57S6h7HaxXE3MXDfG6qvZEFzG6xyhkdyx7iAAZwKffjqrtmnANhU7e4VUwczlWYObo/s320/IMG_3228.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">但如果這時候加入風扇</div><div style="text-align: left;">風扇(外加磁場)的移動會讓線圈產生一個反向的電動勢(黃色部分)</div><div style="text-align: left;">如下示意圖</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNJ-rDnL3HHelbX5PLqTLpiwHD8sfKiUpsiIU6wS_eF9uVTLrgBQboxIh5XE_T2JFe1O9VFDdkT47GAEQSKu9Gs2SuaYhzI6DxQtj6U_vDxJxYv-F5ZibpwVU2ejXfD1mBYUmtWqe4LcXpVFYK2zhn2Y2UNiVOE2vg9AoZ-yzJZj6FHknAP2-fJz8dysoA/s3264/IMG_3245.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNJ-rDnL3HHelbX5PLqTLpiwHD8sfKiUpsiIU6wS_eF9uVTLrgBQboxIh5XE_T2JFe1O9VFDdkT47GAEQSKu9Gs2SuaYhzI6DxQtj6U_vDxJxYv-F5ZibpwVU2ejXfD1mBYUmtWqe4LcXpVFYK2zhn2Y2UNiVOE2vg9AoZ-yzJZj6FHknAP2-fJz8dysoA/s320/IMG_3245.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">綠色是原先通入線圈的0.19A電流</div><div style="text-align: left;">黃色是因為外加磁場對線圈產生的反向電動勢</div><div style="text-align: left;">因此反而削弱了原本通入線圈的電流,實際測量約0.11A</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2cwbWwbpc4OFIxJEBt-8l29y7RPQowJySYKqpUHke4xzBEZIkZt1S-6x1cuSkvryykWKHjFkTWLqXVKtleaH5YSpocCVImpvCa9d3unJfkEbmtHehnhQdjojdBisncCtTRGgN7_8aeSFf_6kpQIEY53uPnXRHnDZuPCWP4xSgHNHUy8epeCqJ0NppBCRA/s3264/IMG_3229.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2cwbWwbpc4OFIxJEBt-8l29y7RPQowJySYKqpUHke4xzBEZIkZt1S-6x1cuSkvryykWKHjFkTWLqXVKtleaH5YSpocCVImpvCa9d3unJfkEbmtHehnhQdjojdBisncCtTRGgN7_8aeSFf_6kpQIEY53uPnXRHnDZuPCWP4xSgHNHUy8epeCqJ0NppBCRA/s320/IMG_3229.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">但這時候如果按住風扇(如同增加了轉子的負載)</div><div style="text-align: left;">轉子轉速下降,外加磁場對線圈的磁通量變化率也減少</div><div style="text-align: left;">產生的反向感應電動勢當然也跟著變小</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQCgR_cjQcaX7ESJYJgpUyG5rC49menQZrGIC2QKgAN-gSAneoHvRaSxFNJ81KiKIxxm5AE9FTvUfhuFYTd6e12DsR3n1L7rq4ErNZMChT-Iry1PDB-zk31v-Wy2rGnDO0tZDx2eWT_w8Z8wlIzAK3s4xLtlvJ_1kkIHEKXOcx0i6CaHSr8oL3hcnP8ifT/s3264/IMG_3231.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQCgR_cjQcaX7ESJYJgpUyG5rC49menQZrGIC2QKgAN-gSAneoHvRaSxFNJ81KiKIxxm5AE9FTvUfhuFYTd6e12DsR3n1L7rq4ErNZMChT-Iry1PDB-zk31v-Wy2rGnDO0tZDx2eWT_w8Z8wlIzAK3s4xLtlvJ_1kkIHEKXOcx0i6CaHSr8oL3hcnP8ifT/s320/IMG_3231.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilK5cabhs_DRkqrSAuzceF-7LX_rhQXFI-MSkdvnujQ2kpqM4soeJa7CEKv9Xh3alFt61PjprApaRhQ74ZJp6NZ6lPqSvvfmFTH_ieakfcKi0gpPlXo5kugSk4Dqq0s_hidFxRZlha2epoWTPosat-R52c3U9dpVVzD4UcMZqjtJNFhhaBYa4hNv2qYkRJ/s3264/IMG_3232.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilK5cabhs_DRkqrSAuzceF-7LX_rhQXFI-MSkdvnujQ2kpqM4soeJa7CEKv9Xh3alFt61PjprApaRhQ74ZJp6NZ6lPqSvvfmFTH_ieakfcKi0gpPlXo5kugSk4Dqq0s_hidFxRZlha2epoWTPosat-R52c3U9dpVVzD4UcMZqjtJNFhhaBYa4hNv2qYkRJ/s320/IMG_3232.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">所以又會恢復好像沒有放入風扇(外加磁場)的情況</div><div style="text-align: left;">電流就會跟著增加了</div><div style="text-align: left;"><br /></div><div style="text-align: left;">所以相同的概念也適用有刷馬達</div><div style="text-align: left;">只不過正常情況下我們不會將轉子(線圈)取出</div><div style="text-align: left;">因此在無負載(空轉)的情況下轉速較高</div><div style="text-align: left;"><div>場磁鐵對線圈產生較高的反向感應電動勢</div><div>輸入的電流就會比加上風扇(有負載,轉速下降)來得小</div></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4xxvwr_DhCHZyQzGvpIk1i2pbXZlOZ3LlQQEx7XGKqyCQQgrXXoT1WX0UdKFVD_aZvnmrQinVHQs9Tlu93Nh3w_j55bJGonUqpjUmavlFT1hQNAgrjDUx-sJfe0Fj8qcZSml_ucAfwRXFQJA7ZjsDMZ7zixmjfEY8orBOVsyAUW7llfk4IkweqarjPbco/s3264/IMG_3253.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4xxvwr_DhCHZyQzGvpIk1i2pbXZlOZ3LlQQEx7XGKqyCQQgrXXoT1WX0UdKFVD_aZvnmrQinVHQs9Tlu93Nh3w_j55bJGonUqpjUmavlFT1hQNAgrjDUx-sJfe0Fj8qcZSml_ucAfwRXFQJA7ZjsDMZ7zixmjfEY8orBOVsyAUW7llfk4IkweqarjPbco/s320/IMG_3253.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEginAHyeHKtCKUwESmvw-YpGgC34tHX7vMap4AL_eb0XD5hZZ3ZRzCiu-Lzik07jLHhmwOVORYO0faJZQQpONMN6kbwW8KO4dyH_FU_vkCjDU9NVDiffHBkTMOp66F3ny9ylXxLc0HbDHKEmJt20I9DMcizI3VGJ0tWYSky-CMYOC_2FXWvx9feul2m-8Sd/s3264/IMG_3254.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEginAHyeHKtCKUwESmvw-YpGgC34tHX7vMap4AL_eb0XD5hZZ3ZRzCiu-Lzik07jLHhmwOVORYO0faJZQQpONMN6kbwW8KO4dyH_FU_vkCjDU9NVDiffHBkTMOp66F3ny9ylXxLc0HbDHKEmJt20I9DMcizI3VGJ0tWYSky-CMYOC_2FXWvx9feul2m-8Sd/s320/IMG_3254.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">若這樣的理論正確</div><div style="text-align: left;">我們將轉子取出直接通電</div><div style="text-align: left;">果然電流又更大了</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_Nph3_Eqe4vr2DN3A0pWNTpssHhIoOwCBXX-6ro6Z4Dixv_9tA33bfT2mcg5atrD5dwG_mxzZ3M_srLtlvXDyPdIUvyn-RyFgHMc9451NcTQ99T92nlCYpDNph2cJCdA9tsnQM5uKgk0PJXIymJnWtAgc2p5wFvVOnVRyKJt6xw8sEKzhef5vRwbDyAdP/s3264/IMG_3256.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_Nph3_Eqe4vr2DN3A0pWNTpssHhIoOwCBXX-6ro6Z4Dixv_9tA33bfT2mcg5atrD5dwG_mxzZ3M_srLtlvXDyPdIUvyn-RyFgHMc9451NcTQ99T92nlCYpDNph2cJCdA9tsnQM5uKgk0PJXIymJnWtAgc2p5wFvVOnVRyKJt6xw8sEKzhef5vRwbDyAdP/s320/IMG_3256.JPG" width="320" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmuGvr_T_55CU8_eZ0GPCsPBBNKmWVp64jIh61h_QRFiWx-Ufvgk9j3ULF2EnNGxAAd_sw09uhQCf18SMH7TfGX03LDkCEeR5j9UVIdcfm8d0KQl3zhGqzzDfH9pxTNTzRYSqnD7bttCB9enOVbj7ZTgebjuYj8IT_fHDwmRox0GU4RcVkiKtgW1Ky6qr_/s3264/IMG_3255.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2448" data-original-width="3264" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmuGvr_T_55CU8_eZ0GPCsPBBNKmWVp64jIh61h_QRFiWx-Ufvgk9j3ULF2EnNGxAAd_sw09uhQCf18SMH7TfGX03LDkCEeR5j9UVIdcfm8d0KQl3zhGqzzDfH9pxTNTzRYSqnD7bttCB9enOVbj7ZTgebjuYj8IT_fHDwmRox0GU4RcVkiKtgW1Ky6qr_/s320/IMG_3255.JPG" width="320" /></a></div><br /><div style="text-align: left;"><br /></div><div style="text-align: left;">如此,這個功率的問題就解決了</div><div style="text-align: left;">其實就是比較的基準點不同產生的誤會而已</div>Unknownnoreply@blogger.com