Circuits, systems, methods, and software for power factor...

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source

Reissue Patent

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C323S299000, C363S089000

Reissue Patent

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RE042946

ABSTRACT:
Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.

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Ashok Bindra; Power Supply Controller Keeps Efficiency HIGH Across All Loads; Electronic Design; Dec. 3, 2001, Covery Story; 3 pgs; Penton Publication.
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Hubertus Notohamiprodjo et al.; Method and Apparatus for Controlling Power Factor Correction; U.S. Appl. No. 10/804,660, Marvell Filed Mar. 19, 2004.

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