Alternating current power control device

Details Alternating current power control device Alternating current power control device

1998-12-11

1999-11-30

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

323320, G05F 140

Patent

active

059948833

ABSTRACT:
An alternating current power control device for controlling the amount of power energy supplied to an electric load by controlling the cycle numbers of an alternating current power source in a predetermined cycle period is disclosed. The control device includes a voltage zero-crossing detecting circuit, a current detector, a power adjusting circuit, a control unit, an output driving circuit, and a switching circuit. The switching circuit is connected in series between the alternating current power source and the load. The control unit generates a control signal to control the switching circuit according to a voltage counting pulses generated by the voltage zero-crossing detecting circuit, a current counting pulse generated by the current detector, and a power adjusting signal generated by the power adjusting circuit to determine the cycle numbers of the alternating current power source supplied to the load.

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patent: 5614811 (1997-03-01), Sagalovich et al.
patent: 5818707 (1998-10-01), Seong et al.
patent: 5892391 (1999-04-01), Hughes

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