UNDERVOLTAGE_DETECTOR

Published:2009/7/10 3:29:00 Author:May | From:SeekIC

The output goes high when the supply falls below a value determined by zener diode D1. If D1 is a 5.6-V zener, the op amp will switch high when the supply voltage falls below approximately 11 V. The precise trip point can be varied by replacing R3 with an 820-kΩ resistor in series with a 470-k0 potentiometer.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Measuring_and_Test_Circuit/UNDERVOLTAGE_DETECTOR.html

Print this Page | Comments | Reading(3)