Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
2000-01-11
2000-12-26
Berhane, Adolf Deneke
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, H02M 3335
Patent
active
061669261
ABSTRACT:
In a tuned switch mode power supply, a supply inductance is coupled to a capacitance to form a tuned, resonant circuit. A transistor switch is coupled to the resonant circuit for generating current pulses in the inductance, coupled to a load circuit to provide an output of the power supply. Resonant voltage pulses are developed between a pair of main current conducting terminals of the transistor switch. A controller is coupled to the transistor switch for generating a switch control signal, during a run mode of operation. The transistor switch is turned on periodically, when the resonant voltage pulses reaches a zero voltage, to provide for zero voltage switching. The generation of the current pulses is disabled to provide for a burst mode operation, in a standby mode operation.
REFERENCES:
patent: 4631652 (1986-12-01), Wendt
patent: 4685041 (1987-08-01), Bowman et al.
patent: 4845605 (1989-07-01), Steigerwald
patent: 5146395 (1992-09-01), McKie
patent: 5424933 (1995-06-01), Illingworth
patent: 5559478 (1996-09-01), Athas et al.
patent: 5608613 (1997-03-01), Jansen
Fitzgerald William Vincent
Nath Gautam
Berhane Adolf Deneke
Henig Sammy S.
Laks Joseph J.
Thomson Licensing S.A.
Tripoli Joseph S.
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