一种低输入电压下带耦合电感的单级LED驱动器

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) Pub Date : 2016-05-22 DOI:10.1109/IPEMC.2016.7512827

Tian Liang, Yijie Wang, Yueshi Guan, Dianguo Xu, Wei Wang

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引用次数: 1

摘要

本文提出了一种单级LED, LED驱动器由三部分组成，第一部分是连续导通模式(CCM)升压电路，使电路具有两倍的电压增益;第二部分是双槽LLC电路，该电路降低了峰值电流，提高了系统效率，并采用了耦合电感技术来提高功率密度;第三部分是电流平衡电路，用于平衡不同串的电流。在实验室中提出了35W的样机来验证分析的正确性，在满载状态下效率高达95%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A single-stage LED driver with couple inductor in low input voltage

A single-stage LED is proposed the paper, the LED driver is made of three parts, the first part is a continuous conduction mode (CCM) boost circuit, which make the circuit have a twice voltage gain; the second part is a double tank LLC circuit, which decreases the peak current and improves the efficiency of the system, and here the couple inductor technique is adopted to increase the power density; the third part is the current balancing circuit, which is used to balance the current of different strings. A 35W prototype is proposed in the laboratory to prove the rightness of the analysis, and the efficiency is as high as 95% in the full load state.

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来源期刊

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)

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