A Family of Zero-Voltage-Transition Magnetic Coupling Bidirectional DC/DC Converters

Shanshan Wang, Ming Gao and Jianjiang Shi ()
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Shanshan Wang: College of Electrical Engineering, Zhejiang University, Hangzhou 310007, China
Ming Gao: College of Electrical Engineering, Zhejiang University, Hangzhou 310007, China
Jianjiang Shi: College of Electrical Engineering, Zhejiang University, Hangzhou 310007, China

Energies, 2023, vol. 16, issue 12, 1-18

Abstract: In this paper, a family of zero-voltage-transition (ZVT) magnetic coupling bidirectional DC/DC converters (BDCs) is proposed. The coupling inductor has two functions: to serve as a filter; and to provide the auxiliary current. In addition, the phase-shifting control method is used to reduce the conduction loss of the auxiliary circuit. The auxiliary switches are all working under zero-current-switching (ZCS) conditions; thus, all the switches have no switching loss. Furthermore, compared with the traditional ZVT implementation method based on the coupled inductor, this topology avoids the input source current notch and has a smaller ripple. Finally, a prototype of 800 W BDC is built to verify the feasibility of the proposed topology.

Keywords: zero-voltage-transition; zero-current-switching; buck/boost converter; coupled inductor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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