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

Author

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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)

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.

Suggested Citation

  • Chun-Yu Liu & Yi-Hua Liu & Shun-Chung Wang & Zong-Zhen Yang & Song-Pei Ye, 2021. "An Adaptive Synchronous Rectification Driving Strategy for Bidirectional Full-Bridge LLC Resonant Converter," Energies, MDPI, vol. 14(8), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:8:p:2298-:d:539133
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    References listed on IDEAS

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    1. Yeu-Torng Yau & Kuo-Ing Hwu & Jenn-Jong Shieh, 2020. "Simple Structure of Soft Switching for Boost Converter," Energies, MDPI, vol. 13(20), pages 1-17, October.
    2. Hwa-Pyeong Park & Mina Kim & Jee-Hoon Jung, 2020. "A Comprehensive Overview in Control Algorithms for High Switching-Frequency LLC Resonant Converter," Energies, MDPI, vol. 13(17), pages 1-17, August.
    3. Guowei Cai & Duolun Liu & Chuang Liu & Wei Li & Jiajun Sun, 2017. "A High-Frequency Isolation (HFI) Charging DC Port Combining a Front-End Three-Level Converter with a Back-End LLC Resonant Converter," Energies, MDPI, vol. 10(10), pages 1-23, September.
    4. Junhao Luo & Junhua Wang & Zhijian Fang & Jianwei Shao & Jiangui Li, 2018. "Optimal Design of a High Efficiency LLC Resonant Converter with a Narrow Frequency Range for Voltage Regulation," Energies, MDPI, vol. 11(5), pages 1-17, May.
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    Cited by:

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    2. An-Yeol Ko & Seong-Yun Kang & Il-Kuen Won & Junsin Yi & Chung-Yuen Won, 2022. "Development of a Resonant Auxiliary Power Supply Control Algorithm and Resonant Destruction Detecting for Railway Vehicles," Energies, MDPI, vol. 15(21), pages 1-21, October.

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