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mdayan
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樓主  發(fā)表于: 2011-02-20 11:39
PNP傳感器如何改成NPN傳感器,NPN傳感器如何改成PNP傳感器,請教各位.說(shuō)細點(diǎn).
冰糖
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1樓  發(fā)表于: 2011-02-20 19:36
簡(jiǎn)單點(diǎn)加個(gè)1.5K-2K的電阻，然后信號取反就可以了
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