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zlq2000
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樓主  發(fā)表于: 2008-10-09 12:37
ＰＬＣ輸出接點(diǎn)原來(lái)是繼電器輸出可否改成晶體管輸出？有一個(gè)ＰＬＣ繼電器輸出，可否把繼電器去掉，采用繼電器線(xiàn)圈電壓信號去驅晶體管電路？這樣的動(dòng)作響應時(shí)間是不是和采用晶體管輸出的ＰＬＣ相同？
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  • 下載積分:+1(YMMFA) 可以的，我改過(guò)
    kawasakilu
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    1樓  發(fā)表于: 2008-10-13 19:42
    可以的，我做過(guò)這事。要注意的事：你選的晶體管驅動(dòng)電流要小，開(kāi)路輸出電阻也要小。否則帶不了額定負載。

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