Small form factor power supply

Details Small form factor power supply Small form factor power supply

1994-04-26

1995-12-26

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 97, H02M 3335

Patent

active

054793319

ABSTRACT:
A new, small form factor power supply is disclosed that provides a regulated DC power supply in a package that radiates relatively little heat and that occupies 2.75" by 4.5" by 0.75". The secondary coil of the transformer is positioned at the summing node of the flux of the primary coils and the phase of the drive signals provided to the secondary coils is regulated to control the current and voltage provided by the secondary circuit. Preferably, all circuit components are surface mount devices and the transformer cores are E block planar cores mounted on the printed circuit board.

REFERENCES:
patent: 4257089 (1981-03-01), Ravis
patent: 4307441 (1981-12-01), Bello
patent: 4734839 (1988-03-01), Barthold
patent: 4885674 (1989-12-01), Varga et al.
patent: 4890214 (1989-12-01), Yamamoto
patent: 5019954 (1991-05-01), Bourgeault et al.
patent: 5146394 (1992-09-01), Ishii et al.
patent: 5177675 (1993-01-01), Archer
patent: 5309348 (1994-05-01), Lau

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