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Clock Alarms Circuits
Designed by David A. Johnson, P.E.

Last Updated on: Monday, April 21, 2008 04:19 AM

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  • LINE POWERED 60Hz CLOCK GENERATOR
    This circuit is connected to the 120vac power line and transfers 60Hz clock pulses to a logic circuit. The optoisolator used provides 5000 volts of isolation between the power line and the logic side of the circuit.


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