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| Research on the LED Driver with Multi-output Current Sharing |
| Lin Lixiang |
| College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116 |
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Abstract As for the needs of multi-outputwith current balancing in high-power LED applications, the paper proposes a LED driver with multi-output current sharing based on capacitance. Analyzing in detailthe principle of 4-output current balancing, and deducing the equivalent circuit of the resonant network. Keeping the multi-output current constant and balanced based on the CLCL-T resonant network. Finally, a 108W laboratory prototype has been built. The experimental results confirm that the topology presented has good characteristic of current balancing.
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Published: 21 March 2017
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[1] Shih-Chang H, Ming-Hwa S, Sheng-Yueh L. Chip implementation of high-efficient LED dimming driver for high-power light-emitting-diode lighting system[J]. IEEE Transactions on Power Electronics, 2015, 8(6): 1043-1051.
[2] 赵融融. 多路LED驱动电流控制及均衡技术[D]. 杭州: 浙江大学, 2015.
[3] Sang-Ho Cho, Sang-Hyun Lee, Sung-Soo Hong, et al. High-Accuracy and Cost-Effective Current-Balanced Multichannel LED Backlight Driver using Single- Transformer[C]//IEEE Proc. ECCE, 2011, 520-527.
[4] Wu Xinke, Hu Chen, Zhang Junming, et al. Analysis and design considerations of LLCC resonant multi- output DC/DC LED driver with charge balancing and exchanging of secondary series resonant capacitors[J]. IEEE Transactions on Power Electronic, 2015, 30(2): 780-789. |
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2017, Vol. 18 
