改善全桥LLC变换器轻载效率的混合谐振频率控制

This letter introduces a mixed resonant frequency control improving the light-load efficiency of a full-bridge LLC converter. The proposed control significantly decreases the switching frequency under light-load condition, by inserting the subresonant freewheeling period caused by the magnetizing inductor of the transformer. By doing so, the operation of LLC converter becomes like a continuously o...