Power supply device

Details Power supply device Power supply device

2008-07-29

2008-07-29

Sterrett, Jeffrey L. (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S020000, C307S046000, C307S048000

Reexamination Certificate

active

07405952

ABSTRACT:
A power supply device has first and second terminals, a transformer, a switching element and an auxiliary power supply element. The first and second terminals receive input power having an input voltage. The transformer has a primary winding and a secondary winding. The primary winding has a pair of winding terminals. One of the pair of winding terminals is connected to the first terminal. The switching element is connected between the second terminal and the other of the pair of winding terminals of the primary winding. The auxiliary power supply element feeds electric power to the transformer when the input voltage decreases to or less than a predetermined value. The auxiliary power supply element has a capacitor and a second switching element for storing energy from the primary winding into the first capacitor during a normal operation of the power supply device.

REFERENCES:
patent: 5862043 (1999-01-01), Youn et al.
patent: 6166924 (2000-12-01), Assow
patent: 6519164 (2003-02-01), Weng et al.
patent: 6788557 (2004-09-01), Phadke
patent: 6954366 (2005-10-01), Lai et al.
patent: 7038922 (2006-05-01), Diallo et al.
patent: A 63-290166 (1988-11-01), None
patent: A-05-260750 (1993-10-01), None
patent: A 08-033341 (1996-02-01), None
patent: A-08-298769 (1996-11-01), None
patent: A 2002-125367 (2002-04-01), None

Affiliated with

Also associated with

Rating

Power supply device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power supply device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2755251