Power factor correction circuit

Details Power factor correction circuit Power factor correction circuit

2006-03-28

2006-03-28

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S300000

Reexamination Certificate

active

07019498

ABSTRACT:
A method of power factor control for a power regulation system connected for supplying electric power to a reactive load, the power factor being characterized by a phase difference between a voltage waveform and an induced current waveform, the method comprising the steps of identifying a peak of an AC current waveform and a peak of an AC voltage peak waveform, determining a time delay between a designated peak of a half cycle of the voltage waveform and a peak of a corresponding half cycle of the current waveform; and adjusting the voltage applied to the load in a manner to vary the time delay so as to bring the power factor towards unity.

REFERENCES:
patent: 4851635 (1989-07-01), Farrow

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