Method and device for controlling power supply

Details Method and device for controlling power supply Method and device for controlling power supply

2005-08-02

2005-08-02

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

C363S040000

Reexamination Certificate

active

06924992

ABSTRACT:
The invention relates to a power supply control device comprising a configuration comprising a voltage source, a resonant inverter circuit powered by said source and comprising a plurality of switch half-bridges connected to the terminals of capacitor means, said configuration also comprising means for controlling the opening and closing of said switches and means for modifying the chopper frequency, a bridge of diode-forming elements connected between the source and the half-bridges of the inverter circuit, and resonant capacitor means connected between the midpoints of the branches of the diode bridge and the midpoints of the half-bridges of the inverter circuit, the device being characterized in that the resonant means further comprise inductor means connected on either side of the bridge of diode-forming elements.

REFERENCES:
patent: 5283727 (1994-02-01), Kheraluwala et al.
patent: 5410221 (1995-04-01), Mattas et al.
patent: 5510974 (1996-04-01), Gu et al.
patent: 5682086 (1997-10-01), Moo et al.
patent: 5917717 (1999-06-01), Arts et al.
patent: 6034489 (2000-03-01), Weng
patent: 6107753 (2000-08-01), Qian
patent: 6570780 (2003-05-01), Furukawa et al.
1998 IEEE; “New Charge Pump Power Factor Correction Electronic Ballast with a Wide Range of Line Input Voltage”, XP-000873670, J. Qian, et al., 4 pages.

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