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US09444346B2 Apparatus and efficiency point tracking method for high efficiency resonant converters 有权
高效率谐振变换器的装置和效率点跟踪方法

Apparatus and efficiency point tracking method for high efficiency resonant converters
Abstract:
A converter comprises an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches, a resonant tank coupled to the plurality of power switches, a transformer coupled to the resonant tank, an output stage coupled to the transformer, an efficiency point tracking indicator coupled to the converter, a detector coupled to the efficiency point tracking indicator and a control circuit configured to receive an efficiency point tracking signal from the detector and adjust a switching frequency of the power switches based upon the efficiency point tracking signal.
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