Power supply device

Details Power supply device Power supply device

2008-04-22

2008-04-22

Vu, Bao Q. (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S123000, C363S125000, C363S132000, C307S044000, C307S045000, C307S046000, C307S048000, C307S066000, C307S087000

Reexamination Certificate

active

07362601

ABSTRACT:
A power supply device includes two input ports, two output ports, a transformer having primary and secondary windings, a switch device, and a controller. The switch device includes a switching element connected in series with the primary winding, and a capacitor. The controller switches the switching element to energize the transformer and charge the capacitor. When an AC power failure such as instantaneous interruption occurs, energy stored in the capacitor is discharged to flow through the primary winding. Accordingly, the transformer is energized to maintain generating an output power from the power supply device for a certain time period. The capacitor is provided on a primary side of the transformer, generally higher voltage side, in the power supply device, so that a smaller capacitance of the capacitor can be used.

REFERENCES:
patent: 5019952 (1991-05-01), Smolenski et al.
patent: 6288920 (2001-09-01), Jacobs et al.
patent: 6407934 (2002-06-01), Ishii et al.
patent: 6788557 (2004-09-01), Phadke
patent: 7167384 (2007-01-01), Yasumura
patent: 2007/0076446 (2007-04-01), Shiga et al.
patent: A 5-260750 (1993-10-01), None
patent: A 8-298769 (1996-11-01), None
patent: A 2003-116233 (2003-04-01), None
patent: A 2004-048938 (2004-02-01), None

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