HVIC power supply controller with primary-side edge detector

Details HVIC power supply controller with primary-side edge detector HVIC power supply controller with primary-side edge detector

1986-12-04

1987-09-15

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 41, 363 98, G05F 156, H02M 3335

Patent

active

046943846

ABSTRACT:
A digital data detector is part of the primary side control electronics in a high voltage integrated circuit for regulating a power supply secondary side output potential; the detector output is responsive to the transitions of digital error data received from the supply secondary side via an electrically-isolated data transmission means. Only the transition edges are utilized by the detector, so that any non-linearity after each transition of the transmission means is immaterial. If the isolation device is a pulse transformer, the transformer core can be of relatively small volume, as full-pulse reproduction is unimportant and pulse saturation is tolerable. A multiplexer allows the primary side control electronics to initiate power supply operation; control is switched to the secondary side responsive to signal edges therefrom being detected by the digital data detector.

REFERENCES:
patent: 4455526 (1984-06-01), Miller
patent: 4458194 (1984-07-01), Geppert et al.
patent: 4502105 (1985-02-01), Jessee
patent: 4574342 (1986-03-01), Runyan
patent: 4617622 (1986-10-01), Fox
patent: 4644240 (1987-02-01), Horie et al.

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