用于可见光通信和照明的LED驱动器性能分析

2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2016-10-16 DOI:10.1109/MWSCAS.2016.7870038

S. Haese, Lamjed Mtimet, M. Hélard

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引用次数: 12

摘要

提出了一种有效实现可见光通信(VLC)开关键控(OOK)调制的方法，同时保持照明功能的高功率效率。我们分析了由降压调节器控制的调制对输出电流变化的影响。电源中使用的电感需要优化，以便在长序列为1或0时产生低电流纹波，而对于低串联电阻和高频谐振，该值应保持低。最后，使用现成组件的实验结果证明了2.5 Mb/s光数据速率的VLC通信，同时提供82.4%的功率效率。

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LED driver performance analysis for joint visible light communication and illumination

This paper presents an efficient way to implement On-Off keying (OOK) modulation for visible light communication (VLC) while keeping high power efficiency of illumination function. We analyze the impact of the modulation on output current variations controlled by a buck regulator. The inductor used in the power supply needs to be optimized for a low current ripple during long sequences of 1 or 0 while the value should be kept low for low series resistor and high frequency resonance. Finally, experimental results using off the shelf components demonstrate a VLC communication at 2.5 Mb/s optical data rate while offering a 82.4% power efficiency.

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2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS)

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