Efficient power supply

Details Efficient power supply Efficient power supply

2007-02-26

2009-12-29

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C363S067000, C363S071000

Reexamination Certificate

active

07639520

ABSTRACT:
The present invention is a method and system for efficiently converting an alternating current (AC) supply to a direct current (DC) output. A power supply in accordance with the present invention may employ variable frequency constant on-time converters whereby switching losses of the converters are approximately proportional with a switching frequency, causing the power supply to be more efficient at light loads. Additionally, a power supply in accordance with the present invention may include multiple-phase converters in which each phase is designed for operation at a fraction of the total maximum load for the power supply.

REFERENCES:
patent: 5311419 (1994-05-01), Shires
patent: 5777864 (1998-07-01), Seong et al.
patent: 5894412 (1999-04-01), Faulk
patent: 6259613 (2001-07-01), Lee et al.
patent: 6275397 (2001-08-01), McClain
patent: 6307761 (2001-10-01), Nakagawa
patent: 2007/0139984 (2007-06-01), Lo

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