Resonant converter system with hybrid control apparatus and controlling method thereof having relatively better efficiency
AssigneeDelta Electronics, Inc.
InventorsJianping Ying, Yiqing Ye, Chao Yan, Jianhong Zeng
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Abstract
The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter and a hybrid control apparatus coupled to the resonant converter for generating a driving signal to adjust a phase angle and a frequency of the resonant converter such that the resonant converter would reach a relatively lower voltage gain and have a relatively lower loss during an abnormal operation.
Claims42
A resonant converter system, comprising:
- a resonant converter receiving an input voltage for outputting an output voltage and having a switching device;
- and
- a hybrid control apparatus coupled to the resonant converter for generating a driving signal to adjust a combination of a phase angle and a frequency of the switching device s.
A hybrid control apparatus for controlling a resonant converter, comprises:
- a first modulator generating a first signal representing a frequency of the resonant converter;
- a second modulator generating a second signal representing a phase angle of the resonant converter;
- and
- a phase-shift generator receiving the first signal and the second signal for generating a hybrid output signal representing a combination of the phase angle and the frequency of the resonant converter for controlling the resonant converter.
A controlling method for a resonant converter system, wherein the resonant converter system comprises a switching device and a hybrid control apparatus coupled to the switching device, the method comprising the steps of:
- (a) allowing the switching device to receive an input voltage for outputting a first output voltage;
- and
- (b) generating a driving signal through the hybrid control apparatus so as to adjust a combination of a phase angle and a frequency of the switching device.
A controlling method for a resonant converter, comprising the steps of:
- (a) generating a first signal representing a frequency of the resonant converter;
- (b) generating a second signal representing a phase angle of the resonant converter;
- and
- (c) combining the first signal and the second signal for generating a hybrid output signal to adjust a combination of the phase angle and the frequency of the resonant converter.
Dependencies are inferred from the claim text.