Method and apparatus for power factor correction

Details Method and apparatus for power factor correction Method and apparatus for power factor correction

1998-04-06

2000-01-25

Han, Y. J.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 89, H02M 706

Patent

active

060184728

ABSTRACT:
A method and apparatus for power factor correction. The present invention provides passive power factor correction for power supplies that supply more than 200 Watts. In one embodiment, power factor correction is provided for over 500 Watt power supplies. A diode bridge circuit provides a rectified voltage output from an alternating current input. A correction circuit receives the rectified voltage and provides power factor correction. The output of the correction circuit is the input to a load circuit, such as an alternating current to direct current circuit.

REFERENCES:
patent: 4716512 (1987-12-01), Takamura et al.
patent: 5285370 (1994-02-01), Axer et al.
patent: 5532917 (1996-07-01), Hung
patent: 5543668 (1996-08-01), Fong
patent: 5748032 (1998-05-01), Baek
patent: 5781427 (1998-07-01), Moreau
A Viable Passive Power Factor Corrector For Bootstrap Modified Switchmode Converters, by J. Brian Matley, Protec Industries, Sep. 1991, pp. 278-296.

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