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Resonant Bridgeless Boost LED Driver Based on Passive Current Balancing
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Xu SHI, Xueshan LIU, Qun ZHOU, Chuntao WANG
Journal of Power Supply | 2024, 22(2) : 369 - 377
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Journal of Power Supply | 2024, 22(2): 369-377
• Lighting Power Supply •
Resonant Bridgeless Boost LED Driver Based on Passive Current Balancing
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Xu SHI, Xueshan LIU, Qun ZHOU, Chuntao WANG
Affiliations
  • College of Electrical Engineering Sichuan University Chengdu 610065 China
Published: 2024-03-30 doi: 10.13234/j.issn.2095-2805.2024.2.369
Outline
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For a traditional Boost power factor correction (PFC) converter, its output voltage must be greater than its input voltage, which limits its applications in light emitting diode (LED) drivers to a certain degree. Meanwhile, due to the existence of a rectifier bridge at the input end of the traditional LED driver, the improvement of its efficiency is also confined. In this paper, a bridgeless Boost LED driver based on passive current balancing is proposed, which is based on the topology of a resonant Boost PFC converter. With the introduction of a resonant capacitive current-balancing network, the output current of each LED string can be balanced. In addition, the elimination of the rectifier bridge further improves the system efficiency. Finally, a 140 W prototype with a peak efficiency of 93.64% was built, and experimental results verified the correctness and feasibility of theoretical analysis.

Bridgeless converter  /  light emitting diode (LED) driver  /  power factor correction (PFC)  /  passive current balancing
Xu SHI, Xueshan LIU, Qun ZHOU, Chuntao WANG. Resonant Bridgeless Boost LED Driver Based on Passive Current Balancing[J]. Journal of Power Supply, 2024 , 22 (2) : 369 -377 . DOI: 10.13234/j.issn.2095-2805.2024.2.369
Funding
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  • Sichuan University and Zigong Cooperation(2019CDZG-14)
  • Sichuan Provincial Regional Innovation Cooperation Project(2021YFQ0006)
Appendix
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Year 2024 volume 22 Issue 2
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256
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.2.369
  • Receive Date：2021-05-28
  • Online Date：2025-07-21
  • Published：2024-03-30
Article Data
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History
  • Received：2021-05-28
  • Revised：2021-08-20
  • Accepted：2021-08-27
Funding
Sichuan University and Zigong Cooperation(2019CDZG-14)
Sichuan Provincial Regional Innovation Cooperation Project(2021YFQ0006)
Affiliations
    College of Electrical Engineering Sichuan University Chengdu 610065 China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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