Electricity off and under-voltage automatical indicator protection circuit

Published:2011/6/4 12:51:00 Author:John | Keyword: automatical indicator | From:SeekIC

In this circuit, when the electricity is over the set upper limiting value of W1, LED2 lights. Door 2 locks to output 1 . J sucks and normally closed contacts break. Therefore, power failure protection can be temporarily achieved. When the electricity is under the set lower limiting value of W2, door 4 opens and LED1 lights. And door 3 outputs 0 so that J pulls. Power conservation can be again achieved.



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