Power supply failure alarm -designed by Naveen P N Click here for Circuit Diagram. |
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Most of the power supply failure indicator circuits
need a separate power supply for themselves. But the alarm circuit
presented here needs no additional supply source. It employs an
electrolytic capacitor to store adequate charge, to feed power to
the alarm circuit which sounds an alarm for a reasonable duration
when the supply fails. If there are any problems please contact naveen_pn@yahoo.com |
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