Constant current source employing power conversion circuitry

Details Constant current source employing power conversion circuitry Constant current source employing power conversion circuitry

1996-02-07

1998-02-10

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, H02M 3335, H02M 324

Patent

active

057175780

ABSTRACT:
An energy source for supplying power to a rechargeable battery or the like provides a constant current input to the front end of a transformer. In order to compensate for varying inductances found in the primary winding of the transformer, a special resistor network is provided to precisely control the duty cycle of the current output.

REFERENCES:
patent: 4672518 (1987-06-01), Murdock
patent: 4837495 (1989-06-01), Zansky
patent: 5390101 (1995-02-01), Brown
Integrated Circuits, Unitrode Application Note: "A 25 Watt Off-Line Flyback Switching Regulator".
Benchmarq -bq2004, Fast Charge IC booklet (Published by Benchmarq Microelectronics, Inc.)--Apr. 1994.
"High Power Flyback Switching Regulators", by Neil Kepple, Keltec Company, Ft. Walton, Fl. (Originally presented at Wescon 77, Sep. 20, 1977, San Francisco, California).
"A Simple, Secondary-Referenced Constant Power Regulator Design Aid DA-9", Power Integrations, Inc., Aug. 1994.

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