Level test circuit using voltage comparator LM324

Published:2012/12/2 21:54:00 Author:Ecco | Keyword: Level test , voltage comparator | From:SeekIC

It is facilitate to test the threshold level adjustment, and the DTL, TTL, CMOS, and other logic level. It is known from voltage compator: when the voltage on non -inverting input terminal (positive side) is higher than inverting input terminal (negative side), the comparator output is high; in contrary, the output is low. RP is the comparison voltage adjustment potentiometer, when UIN is higher than the set voltage, the output of pin 7 is high, it displays 1 and the decimal point dp emit light.



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