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Parameters analysis and control strategy combined with synchronous rectification technology for bidirectional CLLC resonant converter by Xiaobo Liu; Xiaohua Wu; Hao Wang is a Engineering article available to read on EtoBox.

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Bidirectional CLLC resonant converter can realize the efficient two-way transmission of electric energy, which saves the design cost and reduces the volume of DC-DC converter. It is gradually applied in many electric energy conversion fields because of its advantages of high efficiency, high power density and high reliability. In this paper, the circuit structure and parameters of bidirectional CLLC resonant converter are analyzed, which can provide theoretical basis for the design of a circuit. In order to reduce the transmission power loss of the converter, the bidirectional CLLC resonant converter can adopt secondary-side synchronous rectification to improve the output efficiency of the system. According to the range of working frequency, a digital synchronous rectification method for adjusting the on phase and duty cycle of MOSFETs at the output side of the converter is applied, and its operation states are analyzed in detail. On this basis, the control strategy combined with synchronous rectification for bidirectional CLLC resonant converter is designed. In order to realize the conversion from 150 V to 95-120 V in some power converter applications, a 400-W bidirectional CLLC r

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Author

Xiaobo Liu; Xiaohua Wu; Hao Wang

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Engineering (Physical Sciences)