A Bi-directional Switch Based High Step-Up Resonant Converter with Voltage-Quadrupler

초록

This paper introduces a novel bi-directional switch converter that leverages a voltage quadrupler circuit and a resonant topology to achieve both high voltage gain and high efficiency. Utilizing a voltage quadrupler rectifier allows the proposed converter to perform a high voltage step-up characteristic, while minimizing the reliance on a high turns-ratio transformer. By incorporating a bi-directional switch, the circuit's voltage gain is enhanced and the output voltage can be adjusted by altering the duty ratio of the switch. The series-resonant tank provides soft-switching operation resulting, lower switching loss for switches and diodes. A 400-W prototype is presented to validate the performance of the introduced high step-up converter. © 2023 The Korean Institute of Power Electronics.

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