Power factor correction circuit

Details Power factor correction circuit Power factor correction circuit

2007-02-27

2007-02-27

Patel, Rajnikant B. (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C363S095000, C363S089000

Reexamination Certificate

active

10521477

ABSTRACT:
A power factor correction circuit includes; a series circuit connected to a positive-electrode output terminal P1and negative-electrode output terminal P2of a full-wave rectifying circuit B1, which rectifies an having current power-supply voltage of an alternating current power-supply Vac1, and including a booster winding5aand a wind-up winding5bwound on a booster reactor L1, a diode D1and a smoothing capacitor C1; a series circuit, connected between the positive-electrode output terminal P1and the negative-electrode output terminal P2and having the booster winding5a, a ZCS reactor L2and a switch Q1; a diode D2connected between a junction, between the switch Q1and the ZCS reactor L2, and the smoothing capacitor C1; and a control circuit10that controllably turns the switch Q1on and off for controlling an output voltage of the smoothing capacitor C1to a given voltage.

REFERENCES:
patent: 4977493 (1990-12-01), Smith
patent: 5001620 (1991-03-01), Smith
patent: 5654626 (1997-08-01), Karlsson
patent: 0 351 144 (1990-01-01), None
patent: 2000-37072 (2000-02-01), None
patent: WO 00/03473 (2000-01-01), None

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