Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1985-02-06
1986-05-06
Salce, Patrick R.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 28, 363 65, 363 71, 323271, 307 82, 307 87, H02M 3335
Patent
active
045876045
ABSTRACT:
A power supply is provided for supplying regulated power to an output from an unregulated DC voltage source. The supply includes low and high power series resonant converters, each including a pair of power switches which are alternately turned on and off for completing a series resonant circuit with the source and with a primary winding of a transformer coupled to the output. A switch control responds to loading of the output and drives the switches on and off at an operating frequency that varies with the loading. A converter control monitors the operating frequency and controls operation of the converters such that one or both converters operate in dependence upon loading to avoid operation within a particular frequency range.
REFERENCES:
patent: 4502152 (1985-02-01), Sinclair
D. Azzis and J. L. Baret, "Parallel Identical Direct-Mode DC-DC Converters", Jul. 1982, IBM Technical Disclosure Bulletin, vol. 25 pp. 624-625.
R. H. Baker, "High Frequency Power Conversion with FET-Controlled Resonant Charge Transfer", Apr. 1983, PCI Proceedings, pp. 130-133.
Reliance Electric Company
Rickin Michael M.
Salce Patrick R.
Sundheim Robert B.
Todd Voeltz Emanuel
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