Electric power conversion systems – Current conversion
Patent
1991-08-09
1992-09-08
Beha, Jr., William H.
Electric power conversion systems
Current conversion
320 1, 363 16, H02M 307
Patent
active
051463954
ABSTRACT:
The present invention provides a power supply for supplying electrical power to a load. The power supply includes first and second tank circuits having a common resonant frequency, and functions repetitively in two "major periods." In the first major period, the first tank is disconnected from powering the load and the second tank supplies power to the load while charging the first tank. In the second major period, the second tank is disconnected from powering the load, and the first tank supplies power to the load while charging the second tank. The tank circuits are arranged with constant current controllers and switches to function so that the major periods each include first and second minor "intervals." The first minor interval of the first major period defines a time during which the second tank's capacitor is providing power to the load and is charging the first tank circuit; the second minor interval of the first major period defines a time during which the second tank's inductor is charging the first tank circuit and providing power to the load. During the second major period's two minor intervals, the tank circuits perform functions identical to those performed in the first two minor intervals.
REFERENCES:
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patent: 4319315 (1982-03-01), Keeney, Jr. et al.
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patent: 4542440 (1985-09-01), Chetty et al.
patent: 4628284 (1986-12-01), Bruning
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patent: 4748311 (1988-05-01), Thomas et al.
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