The High-efficiency LED Driver for Visible Light Communication Applications

This paper presents a LED driver for VLC. The main purpose is to solve the low data rate problem used to be in switching type LED driver. The GaN power device is proposed to replace the traditional silicon power device of switching LED driver for the purpose of increasing switching frequency of conv...

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Autores principales: Gong, Cihun-Siyong Alex, Lee, Yu-Chen, Lai, Jyun-Liang, Yu, Chueh-Hao, Huang, Li Ren, Yang, Chia-Yen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4976380/
https://www.ncbi.nlm.nih.gov/pubmed/27498921
http://dx.doi.org/10.1038/srep30991
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author Gong, Cihun-Siyong Alex
Lee, Yu-Chen
Lai, Jyun-Liang
Yu, Chueh-Hao
Huang, Li Ren
Yang, Chia-Yen
author_facet Gong, Cihun-Siyong Alex
Lee, Yu-Chen
Lai, Jyun-Liang
Yu, Chueh-Hao
Huang, Li Ren
Yang, Chia-Yen
author_sort Gong, Cihun-Siyong Alex
collection PubMed
description This paper presents a LED driver for VLC. The main purpose is to solve the low data rate problem used to be in switching type LED driver. The GaN power device is proposed to replace the traditional silicon power device of switching LED driver for the purpose of increasing switching frequency of converter, thereby increasing the bandwidth of data transmission. To achieve high efficiency, the diode-connected GaN power transistor is utilized to replace the traditional ultrafast recovery diode used to be in switching type LED driver. This work has been experimentally evaluated on 350-mA output current. The results demonstrate that it supports the data of PWM dimming level encoded in the PPM scheme for VLC application. The experimental results also show that system’s efficiency of 80.8% can be achieved at 1-Mb/s data rate.
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spelling pubmed-49763802016-08-22 The High-efficiency LED Driver for Visible Light Communication Applications Gong, Cihun-Siyong Alex Lee, Yu-Chen Lai, Jyun-Liang Yu, Chueh-Hao Huang, Li Ren Yang, Chia-Yen Sci Rep Article This paper presents a LED driver for VLC. The main purpose is to solve the low data rate problem used to be in switching type LED driver. The GaN power device is proposed to replace the traditional silicon power device of switching LED driver for the purpose of increasing switching frequency of converter, thereby increasing the bandwidth of data transmission. To achieve high efficiency, the diode-connected GaN power transistor is utilized to replace the traditional ultrafast recovery diode used to be in switching type LED driver. This work has been experimentally evaluated on 350-mA output current. The results demonstrate that it supports the data of PWM dimming level encoded in the PPM scheme for VLC application. The experimental results also show that system’s efficiency of 80.8% can be achieved at 1-Mb/s data rate. Nature Publishing Group 2016-08-08 /pmc/articles/PMC4976380/ /pubmed/27498921 http://dx.doi.org/10.1038/srep30991 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Gong, Cihun-Siyong Alex
Lee, Yu-Chen
Lai, Jyun-Liang
Yu, Chueh-Hao
Huang, Li Ren
Yang, Chia-Yen
The High-efficiency LED Driver for Visible Light Communication Applications
title The High-efficiency LED Driver for Visible Light Communication Applications
title_full The High-efficiency LED Driver for Visible Light Communication Applications
title_fullStr The High-efficiency LED Driver for Visible Light Communication Applications
title_full_unstemmed The High-efficiency LED Driver for Visible Light Communication Applications
title_short The High-efficiency LED Driver for Visible Light Communication Applications
title_sort high-efficiency led driver for visible light communication applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4976380/
https://www.ncbi.nlm.nih.gov/pubmed/27498921
http://dx.doi.org/10.1038/srep30991
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