Resonant-type switching power supply device

Details Resonant-type switching power supply device Resonant-type switching power supply device

2008-06-20

2009-11-24

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C363S069000, C363S071000

Reexamination Certificate

active

07623363

ABSTRACT:
There is provided a switching power supply device having one half-wave rectifying circuit made up of switching elements complementarily turned on or off, a reactor, a current resonance capacitor, a transformer, and a rectifying diode and another half-wave rectifying circuit made up of switching elements complementarily turned on or off, a reactor, a current resonance capacitor, a transformer, and a rectifying diode and configured so that the half-wave rectifying circuits commonly charges a smoothing capacitor. The switching elements are turned on or off according to a voltage of the smoothing capacitor and other switching elements are turned on or off based on a difference between a charging voltage of the current resonance capacitor and a charging voltage of the current resonance capacitor. As a result, power energy fed from the half-wave rectifying circuits connected in parallel is made equal.

REFERENCES:
patent: 5946206 (1999-08-01), Shimizu et al.
patent: 6738275 (2004-05-01), Beland
patent: 7035125 (2006-04-01), Yoshida
patent: 7054176 (2006-05-01), Moussaoui et al.
patent: 10-229676 (1998-08-01), None

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