DC transformer with an output inductance integrated on a...

Details DC transformer with an output inductance integrated on a... DC transformer with an output inductance integrated on a...

2008-04-02

2009-02-10

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S024000, C363S026000, C363S098000, C363S132000

Reexamination Certificate

active

07489527

ABSTRACT:
A DC/DC converter includes an input filter, a half-bridge converter without PWM (Pulse Width Modulation) control function, a synchronous rectifier, an output capacitor, and a DC transformer. The DC transformer includes a magnetic core, a primary winding, a first secondary winding, and a second secondary winding. The magnetic core of the DC transformer includes a first leg, a second leg having a first air gap, and a third leg having a second air gap. The first secondary winding is wound on the first leg and the second leg, and induces a first inductance by the first air gap. The second secondary winding is wound on the first leg and the third leg, and induces a second inductance by the second air gap.

REFERENCES:
patent: 2173905 (1939-09-01), Kalbskopf
patent: 5555494 (1996-09-01), Morris
patent: 6765810 (2004-07-01), Perry
patent: 7102898 (2006-09-01), Brkovic
patent: 7136293 (2006-11-01), Petkov et al.
patent: 2002/0141206 (2002-10-01), Brkovic

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