Resonant circuit and resonant power converter with a narrow...

Details Resonant circuit and resonant power converter with a narrow... Resonant circuit and resonant power converter with a narrow...

2009-03-12

2011-10-18

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S017000

Reexamination Certificate

active

08040697

ABSTRACT:
A resonant circuit has two parallel resonant branches and one assistant inductor connecting the two resonant branches. Each resonant branch has a series capacitor and a series inductor connected in series. The other end of the series inductor is for connecting to a primary side of a transformer unit. The resonant circuit can provide two characteristic resonant frequencies fr and fm, so that a resonant power converter using the resonant circuit has an operating frequency fs that satisfies fs>fr or fm<fs<fr. The combination of the two resonant branches and the assistant inductor can reduce the frequency switch range of the resonant power converter within a specific voltage gain.

REFERENCES:
patent: 7286373 (2007-10-01), Liu et al.

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