5_V_power_supply_monitor

Published:2009/7/24 20:20:00 Author:Jessie | From:SeekIC

This circuit uses an LM3914 bar/dot display driver and 10 LEDs to form a simple power-supply monitor.To calibrate,set VCC at 5.41V and adjust R6 until LED9 and LED 10 are equally illuminated.Disconnect R1 from VCC,but leave D1 connected to VCC.Connect R1 to 4.500V,and adjust R4 until LED 1 just barely turns on.Readjust R6 and R1 as necessary.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/5_V_power_supply_monitor.html

Print this Page | Comments | Reading(3)