Power supply monitoring circuit

Published:2011/5/16 19:03:00 Author:Christina | Keyword: Power supply, monitoring | From:SeekIC

The low-level voltage logic part is separated with the power supply by the optocoupler. If there is something wrong with the citcuit, the output voltage level reduces to the logic voltage level to adjust the output of the trigger and to close the whole circuit. The response time of this circuit is 2ms, when the AC grid voltage passes zero normally, there is on influence to the circuit. The power consumption of this circuit is 50 mW.



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