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作者 wisdom 在 PTT [ Electronics ] 看板的留言(推文), 共118則
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1F→:因為這條電源線跟很多負載並聯,你量到的是其他負載的電阻08/06 19:26
2F→:戴維寧轉換倒過來算而已,框外量到5v就告訴你等效電壓了07/03 12:48
3F→:然後知道總電流,就可以算等效電阻。07/03 12:49
2F→:電池發熱 = 放電流大。想辦法降低電池輸出電流06/24 22:50
3F→:如果降不下來,就再並一組電池分攤輸出06/24 22:51
7F→:降低耗電量當然就是提升效率囉。減少耗損06/25 22:05
7F→:100ohm太大,串一顆25ohm的試試03/20 16:57
2F→:高電壓易得,高電流難求02/11 16:34
1F→:補償電路,防止電路震盪。01/30 21:07
3F→:1uF 用來濾波也太小了點.02/07 22:00
1F→:可見紅光的波長是620~740nm,0.00062~0.00074mm12/27 19:37
2F→:甲安 = 3乙安。12/21 09:06
3F→:訊號全面無線化都還有很長的路要走。電力無線..難..10/08 23:19
6F推:就算沒跳電也不會觸電,電流會走最短路徑(阻抗最低)09/21 17:29
7F→:電流不會特地繞一大圈經過你身體再回到插座09/21 17:30
8F→:不過大多數狀況都會跳電就是了。09/21 17:30