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A new method to suppress voltage stress of switches and transformers is proposed for phase shift controlled dc-dc converter. In the proposed method, two transformers are used and secondary windings are connected in series, which allows zero voltage switching of the switches. Since switching nodes are coupled together by transformer, the locations of them do not matter, so series connection of power...
This paper presents a new LLC converter combined with switched capacitor for high voltage applications. In the proposed converter, the flying capacitor of the switched capacitor is divided into two parts, and they are used as resonance capacitors of an LLC converter. The proposed method reduces the switch voltage stress to a half of the input voltage, and the current in switches are a half of that...
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