Precise light diode comparator circuit

Published:2011/6/22 3:26:00 Author:TaoXi | Keyword: Precise, light diode, comparator | From:SeekIC

The R1 sets the comparison level. When it is comparing, the voltage drop of the light diode is lower than 5mV, the dark current reduces a magnitude. The integrated circuit is LM111/211/311.



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