Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1985-12-27
1986-12-02
Salce, Patrick R.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, H02M 3335
Patent
active
046269770
ABSTRACT:
A video display apparatus includes a regulated transformer power supply that provides power to an external load device, such as a computer, via one winding on the power supply transformer. Operation of the video display apparatus without the external circuit attached may cause degradation of the other transformer winding load circuits due to insufficient transformer power transfer as a result of decreased external power supply loading. A diode is connected from the external load supply to another load circuit to supply power to the other load circuit when the external device is not attached. When the external device is attached, the diode is reverse biased and does not conduct.
REFERENCES:
patent: 3660749 (1972-05-01), Kadri
patent: 4272805 (1981-06-01), Iguchi et al.
patent: 4315303 (1982-02-01), Snyder
patent: 4459651 (1984-07-01), Fenter
patent: 4481564 (1984-11-01), Balaban
Carnes Mark T.
Smith Lawrence E.
Hoff Marc S.
Laks Joseph
Rasmussen Paul J.
RCA Corporation
Salce Patrick R.
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