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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...
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Main Authors: | , , |
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Format: | Conference Proceeding |
Language: | English |
Subjects: | |
Online Access: | Request full text |
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Summary: | 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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ISSN: | 1558-3899 |
DOI: | 10.1109/MWSCAS.2016.7870038 |