Switching power supply circuit

Details Switching power supply circuit Switching power supply circuit

2007-03-01

2010-02-02

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S097000

Reexamination Certificate

active

07656686

ABSTRACT:
There is provided a switching power supply circuit which may include a rectifying and smoothing section for converting an alternating input voltage from an alternating-current power supply into a primary side direct-current voltage; a converter section for converting the primary side direct-current voltage from the rectifying and smoothing section into an alternating voltage and further converting the alternating voltage into a secondary side direct-current voltage; and a power factor improving section for improving a power factor.

REFERENCES:
patent: 6310786 (2001-10-01), Yasumura
patent: 6396717 (2002-05-01), Yasumura
patent: 6839245 (2005-01-01), Yasumura
patent: 7423887 (2008-09-01), Yasumura
patent: 2003/0095419 (2003-05-01), Yasumura
patent: 2005/0281059 (2005-12-01), Yasumura
patent: 2007/0195560 (2007-08-01), Yasumura
patent: 2008/0025052 (2008-01-01), Yasumura
patent: 06-327246 (1994-11-01), None

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