LLC multi-level LLC resonant converter and electronic device

摘要

An LLC resonant converter and an electronic device are disclosed. The LLC resonant converter of the present invention includes a multi-input transformer, first and second converter units connected to the primary side of the multi-input transformer, an input voltage part, a first balance capacitor, and an output connected to the secondary side of the multi-input transformer. Each of the converter units includes a first part having one switch and one resonant capacitor connected in series and a second part having the other switch and the other resonant capacitor connected in series. The first part, the second part and the primary input side wire of the transformer are connected in parallel. Each of the switches is connected. Each of the resonant capacitors is connected. The first balance capacitor is connected to a node between the switches of each of the converter units. It is possible to improve high frequency drive and efficiency.