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Design for a Four-Stage DC/DC High-Voltage Converter with High Precision and a Small Ripple

Author

Listed:
  • Wei Zheng

    (Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Cong Hu

    (Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Bin Zhao

    (Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Xiaobao Su

    (Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Gang Wang

    (Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Xiaowan Hou

    (Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China)

Abstract

This paper presents a four-stage DC/DC converter with high precision and a small ripple utilized in an electronic power conditioner (EPC). The galvanically isolated four-stage topology contains four cascade connections: a buck circuit, a push–pull circuit, a power converter, and a voltage regulator. The push–pull switches, as well as the diodes in the output-side rectifier, operate in zero-voltage switching (ZVS) and zero-current switching (ZCS) modes at both switch off and switch on, which helps increase the efficiency. The maximum efficiency of the converter can reach 94.5%. The buck circuit and voltage regulator operate in a two-stage closed-loop condition and, thus, the precision is greater than 0.02%. Due to the voltage regulator, the ripple is less than 1 V when the output voltage reaches 7000 V.

Suggested Citation

  • Wei Zheng & Cong Hu & Bin Zhao & Xiaobao Su & Gang Wang & Xiaowan Hou, 2022. "Design for a Four-Stage DC/DC High-Voltage Converter with High Precision and a Small Ripple," Energies, MDPI, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:389-:d:1018954
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    References listed on IDEAS

    as
    1. Kiran Kumar Geddam & Elangovan Devaraj, 2022. "Real Time Hardware-in-Loop Implementation of LLC Resonant Converter at Worst Operating Point Based on Time Domain Analysis," Energies, MDPI, vol. 15(10), pages 1-19, May.
    2. Bin Zhao & Gang Wang, 2019. "PSO-Algorithm-Based Optimal Design of LCLC Resonant Converters for Space Travelling-Wave Tube Amplifiers Applications," Energies, MDPI, vol. 12(12), pages 1-16, June.
    3. Wei Zheng & Cong Hu & Bin Zhao & Xiao-Bao Su & Gang Wang & Xiao-Wan Hou & Bruce Gu, 2022. "A Two-Stage DC/DC Isolated High-Voltage Converter with Zero-Voltage Switching and Zero-Current Switching Applied in Electronic Power Conditioners," Energies, MDPI, vol. 15(17), pages 1-15, September.
    4. Mohammed Abdulla & Khalid A. Juhany, 2022. "A Rapid Solver for the Prediction of Flow-Field of High-Speed Vehicle Moving in a Tube," Energies, MDPI, vol. 15(16), pages 1-15, August.
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