Dual feedback switching power supply regulator for isolated chas

Details Dual feedback switching power supply regulator for isolated chas Dual feedback switching power supply regulator for isolated chas

1985-10-31

1987-04-14

Beha, Jr., William H.

Electric power conversion systems

Current conversion

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

315411, 363 97, H02M 3335

Patent

active

046583424

ABSTRACT:
A regulating switched mode power supply for a video display apparatus provides electrical isolation between the load circuits and the AC line. A power transformer incorporates a regulator winding referenced to AC line ground potential. First and second feedback circuits develop first and second feedback signal components that are applied to a regulator control circuit which controls the conduction of the power supply switching transistor. The two feedback circuits have different time constants to accurately monitor load circuit loading conditions in order to maintain load circuit voltage level regulation.

REFERENCES:
patent: 3388309 (1968-06-01), Banks et al.
patent: 3419781 (1968-12-01), Jullien-Davin
patent: 4172276 (1979-10-01), Kameya
patent: 4266268 (1981-05-01), Tkacenko
patent: 4488210 (1984-12-01), Shono
patent: 4525739 (1985-06-01), Fitzgerald

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