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; Song-Pei Ye

doi:10.3390/en14082298

Energies (Apr 2021)

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,
Song-Pei Ye

Affiliations

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

DOI: https://doi.org/10.3390/en14082298
Journal volume & issue: Vol. 14, no. 8
p. 2298

Abstract

Read online

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.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

About the journal

Abstract

Keywords