Dual output DC-DC converter with independently controllable outp

Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter

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363 21, 363 26, 363 79, 363 98, 363132, 363134, 336184, H02M 3335

Patent

active

046284265

ABSTRACT:
A single DC power switching converter feeds two DC load circuits from two transformer secondary windings. One winding is tightly coupled to the primary and its output voltage is controlled using pulse-width modulation. The other secondary winding is loosely coupled to the primary so that its leakage inductance resonates with a secondary capacitor such that its output is controlled by converter frequency adjustment. Thus, both output voltages are controlled using a single power switching stage.

REFERENCES:
patent: 4353113 (1982-10-01), Billings
patent: 4356542 (1982-10-01), Bruckner et al.
Kohno and Kuwabara, Single-Ended DC-to-DC Converter with Two Individually Controlled Outputs, Fujitsu Scientific and Tech. J. (Mar. 1980), 23-37.
Dauhajre and Middlebrook, Simple PWM-FM Control for an Independently-Regulated Dual Output Converter, Proceedings of Powercon 10 (Mar. 1983), 1-8.

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