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Digital Adaptive Low-frequency Ripple Compensation Control for Asymmetrical Half-bridge LED Constant-current Driver
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Zhiyong QIAO  Member, CPSS1, 2, Shunli WANG1, Nan ZHANG3, Zhigui LIU1
Journal of Power Supply | 2026, 24(1) : 109 - 123
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Journal of Power Supply | 2026, 24(1): 109-123
• Power Converter Modeling and Control •
Digital Adaptive Low-frequency Ripple Compensation Control for Asymmetrical Half-bridge LED Constant-current Driver
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Zhiyong QIAO  Member, CPSS1, 2, Shunli WANG1, Nan ZHANG3, Zhigui LIU1
Affiliations
  • 1.School of Information Engineering, Southwest University of Science and Technology, Mianyang 621000, China
  • 2.College of Electronics and Information, Mianyang Polytechnic, Mianyang 621000, China
  • 3.Mianyang Maike Electronic Technology Co., Ltd., Mianyang 621000, China
Published: 2026-01-30 doi: 10.13234/j.issn.2095-2805.2026.1.109
Outline
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To meet the requirements of long life, high efficiency, low ripple and intelligence of a high-power LED light source, based on an in-depth analysis of the characteristics of low-frequency secondary ripple compensation of a Boost asymmetric half-bridge (AHB) converter LED constant-current driver without an electrolytic capacitor, an adaptive low-frequency ripple compensation control algorithm for an AHB LED constant-current driver in digital predictive current mode was proposed. MATLAB simulation results show that the proposed control algorithm can adapt to the changes in input voltage and load and effectively reduce the low-frequency secondary ripple current flowing through the LED in the whole dimming range.

LED constant-current driver  /  asymmetric half-bridge converter  /  electrolytic capacitor-less  /  adaptive low-frequency ripple compensation control  /  digital predictive current mode
乔之勇中国电源学会会员, 王顺利, 张楠, 刘知贵. 不对称半桥LED恒流源数字自适应低频纹波补偿控制. 电源学报, 2026 , 24 (1) : 109 -123 . DOI: 10.13234/j.issn.2095-2805.2026.1.109
Zhiyong QIAO, Shunli WANG, Nan ZHANG, Zhigui LIU. Digital Adaptive Low-frequency Ripple Compensation Control for Asymmetrical Half-bridge LED Constant-current Driver[J]. Journal of Power Supply, 2026 , 24 (1) : 109 -123 . DOI: 10.13234/j.issn.2095-2805.2026.1.109
Funding
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  • National Natural Science Foundation of China(62173281)
Appendix
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Year 2026 volume 24 Issue 1
44
6
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.1.109
  • Receive Date：2023-02-08
  • Online Date：2026-10-26
  • Published：2026-01-30
Article Data
Affiliations
History
  • Received：2023-02-08
  • Revised：2023-07-19
  • Accepted：2023-08-09
Funding
National Natural Science Foundation of China(62173281)
Affiliations
    1.School of Information Engineering, Southwest University of Science and Technology, Mianyang 621000, China
    2.College of Electronics and Information, Mianyang Polytechnic, Mianyang 621000, China
    3.Mianyang Maike Electronic Technology Co., Ltd., Mianyang 621000, China
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2026.1.109
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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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