Over-voltage protection circuit with the automatic reset function

Published:2011/6/24 21:51:00 Author:TaoXi | Keyword: Over-voltage, protection circuit, automatic, reset function | From:SeekIC

This circuit is composed of the power supply circuit, the trigger starting circuit and the control circuit, it controls the load RL to turn on and off the power through the two-way thyristor ZN*6. Once the voltage of the AC power supply is too high, the A point voltage of the current stabilization component 1N5314 will increase to conduct the unidirectional thyristor 2N5060 and cut off the transistor 2N6239, so the main two-way thyristor cuts off to make the load away from the overvoltage damage.



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