automobile-voltage monitoring circuit

Published:2011/5/15 6:16:00 Author:chopper | Keyword: automobile-voltage, monitoring circuit | From:SeekIC

This circuit is applied to monitor the 12V power supply voltage of automobile to make sure the voltage is right.If the voltage is between 12V and 14.5V,it is regular;if the voltage is lower than 12V or higher than 14.5V,the indicator will turn on.A1，A2 is a indicator comparator,which is used to adjust potentiometer W1,W2.When power supply voltage is higher than 14.5V,B will turn on;When the voltage is lower than 12V,A will turn on;two of them is dark.



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