VOLTAGE_LEVEL_LATCH

Published:2009/7/14 22:09:00 Author:Jessie | From:SeekIC

Circuit uses comparator to latch after input reaches predetermined threshold level. Output of IC1 then goes high and enables input of strobe Q2 to prevent output from going low. High level on reset input will turn off Q1, removing supply voltage from open collector output of IC1 and removing latch condition Comparator will operate on supplies ranging from single 5-V level to dual ±15V. – M. W Bair, IC Comparator Doubles as a Latch, EDN Magazine，April 20，1975，p 72．



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