Resonant converter and burst mode starting method thereof

Details Resonant converter and burst mode starting method thereof Resonant converter and burst mode starting method thereof

2007-07-30

2010-06-08

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S017000

Reexamination Certificate

active

07733669

ABSTRACT:
A resonant converter and burst mode starting method thereof are provided. The resonant converter includes a converting stage, a transformer to induce the output of converting stage from the primary side to the secondary side, a rectifying stage to rectify the output of the transformer, a filtering and load stage to filter the output of the rectifying stage, and a charge pump circuit coupled to the transformer or the rectifying stage. The charge pump circuit is for raising a voltage level of the filtering and load stage to higher than a predetermined value so that a feedback voltage of the resonant converter varies. The burst mode of the resonant converter is than started in accordance with the variance.

REFERENCES:
patent: 6018467 (2000-01-01), Majid et al.

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