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Long Life Power Factor Corrected LED Driver with Capacitive Energy Mechanism for Street Light Applications

Author

Listed:
  • Muhammad Faizan

    (Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
    School of Microelectronics, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Jinshun Bi

    (Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
    School of Microelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
    Institute of Microelectronics of Tianjin, Tianjin 300451, China)

  • Mengxin Liu

    (Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
    School of Microelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
    Beijing Zhongke New Micro Technology Development Co., Ltd., Beijing 100029, China)

  • Lixin Wang

    (Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China)

  • Viktor Stempitsky

    (Faculty of Radioengineering and Electronics, Belarusian State University of Informatics and Radioelectroics, 220013 Minsk, Belarus)

  • Muhammad Zain Yousaf

    (School of Electrical and Information Engineering, Hubei University of Automotive Technology, Shiyan 442002, China)

Abstract

Conventional switch-mode LED drivers have problems such as poor performance in harmonic distortion, flickering, power factor correction, stresses on the switches, high switching losses, large size, and high cost. To resolve these problems, we propose a long-life LED driver with the ability of power factor correction. The proposed system is based on the integration of a half-bridge LLC resonant converter and two boundary-conducted boost converters. Both boost converters share a common inductor designed in such a way that both boost converters work in boundary conduction mode to attain the natural power factor correction. Half-bridge LLC resonant converter has soft switching characteristics, which assure the zero-voltage switching (ZVS) of primary-side switches and zero-current switching (ZCS) of diodes on the secondary side. This significantly reduces switching losses and improves the overall efficiency of the system. Voltage divider capacitors are used on the input side, which minimizes the bus voltages. The proposed system has two identical secondary windings with a coupled inductor to eliminate the mismatch between them, which powers two independent LED strings. The simulation of a 100-watt 240 V AC converter yields the approximate sinusoidal shape of the input current. It shows that the switches on the primary side are operated in ZVS and the diodes in ZCS. At 240-volt AC input, the efficiency is 87.4%, the total harmonics distortion (THD) is 10.98%, and the power factor (PF) is 0.98.

Suggested Citation

  • Muhammad Faizan & Jinshun Bi & Mengxin Liu & Lixin Wang & Viktor Stempitsky & Muhammad Zain Yousaf, 2023. "Long Life Power Factor Corrected LED Driver with Capacitive Energy Mechanism for Street Light Applications," Sustainability, MDPI, vol. 15(5), pages 1-15, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:3991-:d:1076838
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    Citations

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    Cited by:

    1. Kuo-Ing Hwu & Jenn-Jong Shieh & Chien-Ting Lin, 2023. "Universal Input Single-Stage High-Power-Factor LED Driver with Active Low-Frequency Current Ripple Suppressed," Energies, MDPI, vol. 17(1), pages 1-23, December.
    2. Xiaoqing Bai & Chun Wei & Peijie Li & Dongliang Xiao, 2023. "Editorial for the Special Issue on Sustainable Power Systems and Optimization," Sustainability, MDPI, vol. 15(6), pages 1-3, March.

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