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匯榮鋁業(yè)
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樓主  發(fā)表于: 2011-07-05 11:37
圖片：
大伙看看。
z4131246
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1樓  發(fā)表于: 2011-07-05 12:35
很簡(jiǎn)單啊如果你的PLC是繼電器輸出（PLC輸出點(diǎn)電阻在1歐姆一下的話(huà)）那那你這電路輸出電壓為12V電，你這電路的輸出電壓關(guān)鍵是要知道你的PLC輸出點(diǎn)上的壓降 然后用24V（電源電壓）減掉PLC輸出點(diǎn)的壓降除掉2就是了；當然這是理論值因為還有那電容是否能充分充電要是能充分充電的話(huà)那就本上就是我上面的那個(gè)算法。
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