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Patent Searching and Data


Title:
ENHANCED CONDUCTION ANGLE POWER FACTOR CORRECTION TOPOLOGY
Document Type and Number:
WIPO Patent Application WO2002080347
Kind Code:
A3
Abstract:
The invention in the simplest form is an improved AC inductor circuit design that is ideal for single boost, or split phase dual boost topologies, and other poly-phase systems improving input power factor and total harmonic distortion. The implementation is efficient, reliable, and flexible, utilizing a wide range of input voltages and currents (including synthesized input voltage waveforms other than sinusoids), and variable frequency voltage sources such as flywheels or micro-turbines, switches, such as IGBT, MOSFET, in combination with AC inductors and typical high frequency rectifier diodes, high frequency rectifiers, or even some line frequency rectifier diodes. The present invention is applicable to power supplies, motor drives, power conditioners, power generation equipment, hybrid power conditioning and distribution equipment, appliances, and flywheels.

Inventors:
WELCHES RICHARD
Application Number:
PCT/US2002/010135
Publication Date:
November 28, 2002
Filing Date:
April 01, 2002
Export Citation:
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Assignee:
YOUTILITY INC (US)
International Classes:
H02M1/00; H02M1/42; (IPC1-7): H02M7/217
Foreign References:
US5235504A1993-08-10
US5414613A1995-05-09
US6043997A2000-03-28
US6115274A2000-09-05
US6137701A2000-10-24
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