Efficient power supply post regulation

Details Efficient power supply post regulation Efficient power supply post regulation

1991-10-11

1992-06-02

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

307 34, 363 26, 363 67, 363 90, H02M 114

Patent

active

051192845

ABSTRACT:
High efficiency, post regulation of auxiliary outputs in multiple output-power supplied is provided by connecting a regulating switching device in parallel with a filter inductor connected in the current path from the rectifiers to the output terminal. For minimum output power for that auxiliary output, the switching device is held off at all times. When increased power is required, the switching device is turned on for a short period during each cycle of the inductor voltage. The switching system may be configured to conduct current from the output end of the inductor to the input end of the inductor or vice versa or either one selectively, in accordance with the particular regulation scheme chosen. Efficiency is maximized since current flows in the switching device for only a small portion of each cycle of the inductor voltage.

REFERENCES:
patent: 3890557 (1975-06-01), Bogdanov et al.
patent: 4628430 (1986-12-01), Mastner

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