Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1998-12-15
2000-05-09
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 27, 363 97, 363134, H02M 3335, H02M 3315, H02M 324, H02M 7538
Patent
active
060612525
ABSTRACT:
A switching power supply device has a configuration in which a series combination of a first switching circuit and an input power source is connected in series with a series combination of a primary winding of a transformer and an inductor, a series combination of a second switching circuit and a capacitor is connected in parallel to the series combination of the primary winding of the transformer and the inductor, and the secondary winding of the transformer is provided with a rectifying smoothing circuit including a rectifying element. The first switching circuit is made up of a parallel connection circuit including a first switching element, a first diode, and a first capacitor. The second switching circuit is made up of a parallel connection circuit including a second switching element, a second diode, and a second capacitor. A switching controlling circuit is provided adapted to turn the first and second switching elements on and off alternately, with a period of time when both switching elements are off is interposed, and a capacitor is connected in parallel to the rectifying diode in the rectifying smoothing circuit.
REFERENCES:
patent: 4336587 (1982-06-01), Boettcher, Jr. et al.
patent: 4441146 (1984-04-01), Vinciarelli
patent: 4809148 (1989-02-01), Barn
patent: 5325283 (1994-06-01), Farrington et al.
patent: 5570278 (1996-10-01), Cross
patent: 5684678 (1997-11-01), Barrett
patent: 5946206 (1999-08-01), Shimizu
Murata Manufacturing Co. Ltd.
Vu Bao Q.
Wong Peter S.
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