Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1986-06-03
1988-01-19
Beha, Jr., William H.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
323226, 363 56, 363 97, H02M 324
Patent
active
047207752
ABSTRACT:
A high frequency switching regulator drives plural loads by way of an output transformer. The transformer includes plural secondary windings connected to plural loads. One of the secondary windings is connected to a main output channel including a circuit for maintaining the current in the main channel above a predetermined minimum required for proper voltage regulation of the other channels. The circuit includes a current transformer in a line of the main channel. The current transformer contains a saturating core that saturates in response to a main channel current slightly above the predetermined minimum main channel current. An impedance responsive to current in the current transformer loads the main channel so that the main channel current is never less than the predetermined value regardless of the impedance between load terminals of the main channel. This assures proper inverter operation to maintain full voltage regulation of the other output channels.
REFERENCES:
patent: 3846675 (1974-11-01), Shimp
Electronics, "Transistor Replaces Bleeder and Regulates Power Supply", vol. 41, No. 2, pp. 70, 71, Jan. 22, 1968.
Beha Jr. William H.
Qualidyne Systems, Inc.
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