DC/DC power conversion device

Details DC/DC power conversion device DC/DC power conversion device

2008-04-01

2010-06-01

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C323S272000, C323S284000, C323S285000

Reexamination Certificate

active

07729144

ABSTRACT:
A DC/DC power conversion device with smoothing capacitors including three column circuits share the smoothing capacitors to be connected in parallel, each column circuit have a plurality of circuits connected in series where two MOSFETs are connected in series between both ends of respective smoothing capacitors and LC serial bodies of capacitors and inductors with the same resonant cycle are disposed between the circuits at two middle terminals. Driving signals for the respective column circuits have the same driving cycle identical with the resonant cycle of the LC serial bodies, and are out of phase with each other by 2π/3(rad), and thus charge-discharge currents towards the smoothing capacitors are circulated among the column circuits and ripple currents flowing through the smoothing capacitors are reduced.

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