Power factor corrected rectifying circuit

Details Power factor corrected rectifying circuit Power factor corrected rectifying circuit

1994-08-05

1996-07-02

Wong, Peter S.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 69, 323208, H02M 708, G05F 170

Patent

active

055329179

ABSTRACT:
A power factor corrected rectifying circuit is disclosed. The invention may be implemented using only passive elements and, in such an embodiment, achieves a power factor of about 80%. The invention comprises two rectifying circuits for providing two rectified current paths from an AC input port to an output port. The coupling of current along one of the rectified current paths is delayed. As the sum of the delayed and undelayed currents, the input current pulse is widened to approximate a sinusoid, thereby increasing the power factor.

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James J. Spangler, Motorola Semiconductor Products, Inc., Schaumburg, Illinois, "A Power Factor Corrected, MOSFET, Multiple Output, Flyback Switching Supply" 18 pages May 1994.

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