NULL_DETECTOR

Published:2009/7/6 2:52:00 Author:May | From:SeekIC

In this indicating comparator circuit， R2 setsthe hysteresis，If the 741 saturates at ±12 V. the current in R1 will be approximately±10 mA if 0.1 V hysteresis iS desired，Then 0.1 V/10 mA＝10Ω＝R2．



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