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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→:你需要1pg05/15 19:16
1F→:你用哪台PLC?05/06 19:14
2F→:需要幫忙的話我會寫三菱跟Open PLC05/06 19:22
4F→:絕大多數的家用交流馬達都是感應式的。找直流馬達04/30 22:45
1F→:不行,LED的逆向崩潰電壓很低04/15 20:45
1F→:直流馬達直接用電壓控制轉速。再串一顆二極體囉01/04 13:48
4F→:所以延長線有電流限制,電流太大的話NFB會跳掉12/22 23:39
14F→:0.3V很小,先用OP把訊號放大,推電晶體當開關。12/15 00:24
17F→:0.3v這個訊號端的電流未必推得動SSR12/15 00:44
15F→:如果重點在選擇電路,要不要改成兩組光源12/14 13:10
16F→:用環境光源來選擇要用高亮度跟低亮度。兩組太陽能板的作法12/14 13:11
17F→:說實話實在蠻蠢的12/14 13:11
1F→:簡單就用溫度開關自動斷電。複雜就用溫度sensor+PID控制12/05 22:34
5F→:架兩架固定鏡頭,先知道球場大小,鏡頭位置。剩下就是數學10/20 23:39