Switch power supply apparatus

Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter

Reexamination Certificate

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Details

C363S021040, C363S021120, C363S132000

Reexamination Certificate

active

06977823

ABSTRACT:
The present invention provides a power supply apparatus with a plurality of digital control units. Each digital control unit is used to control an independent output terminal for outputting a stable output voltage. The output voltage is not fed back to the primary side of the transformer.

REFERENCES:
patent: 5317498 (1994-05-01), Dhyandchand et al.
patent: 5710697 (1998-01-01), Cooke et al.
patent: 5742496 (1998-04-01), Tsutsumi
patent: 5815384 (1998-09-01), Hammond et al.

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