An Adaptive Synchronous Rectification Driving Strategy for Bidirectional Full-Bridge LLC Resonant Converter

Chun-Yu Liu, Yi-Hua Liu, Shun-Chung Wang, Zong-Zhen Yang and Song-Pei Ye
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Chun-Yu Liu: Department of Electrical Engineering, National Taiwan University of Science and Technology (NTUST), No. 43, Sec. 4, Keelung Road, Taipei 106, Taiwan
Yi-Hua Liu: Department of Electrical Engineering, National Taiwan University of Science and Technology (NTUST), No. 43, Sec. 4, Keelung Road, Taipei 106, Taiwan
Shun-Chung Wang: Department of Electrical Engineering, Lunghwa University of Science and Technology (LHU), No. 300, Sec. 1, Wanshou Road, Guishan District, Taoyuan City 33306, Taiwan
Zong-Zhen Yang: Department of Electrical Engineering, Ming Chi University of Technology (MCUT), 84 Gungjuan Rd., Taishan Dist, New Taipei City 24301, Taiwan
Song-Pei Ye: Department of Electrical Engineering, National Taiwan University of Science and Technology (NTUST), No. 43, Sec. 4, Keelung Road, Taipei 106, Taiwan

Energies, 2021, vol. 14, issue 8, 1-16

Abstract: In this study, an adaptive driving method for synchronous rectification in bidirectional full-bridge LLC resonant converters used in railway applications is proposed. The drain to source voltage of the synchronous rectifier is utilized to detect the conduction of the body diode, and a suitable driving signal for synchronous rectification is generated accordingly. The proposed driving scheme is simple and can be realized using a low-cost digital signal processor (DSP). According to the experimental results, which averaged 0.4625% and 1.097%, improvement can be observed under charging and discharging mode, respectively.

Keywords: adaptive driving strategy; synchronous rectifier; bidirectional full-bridge LLC resonant converters (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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