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http://dx.doi.org/10.6113/TKPE.2011.16.4.358

High Efficiency Switch-Mode LED driver for Visible Light Communication System  

Kang, Jung-Min (국민대 전자공학과)
Cho, Sang-Ho (국민대 전자공학과)
Hong, Sung-Soo (국민대 전자공학부)
Han, Sang-Kyoo (국민대 전자공학부)
SaKong, Suk-Chin (국민대 전자정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.16, no.4, 2011 , pp. 358-365 More about this Journal
Abstract
Recently, the LED(Light Emitting Diode) replacing incandescent light bulbs and fluorescent light has great attentions as a most promising candidate for the next generation lighting source due to its environment-friendly characteristics, long life and excellent efficiency. Moreover, since it is a semiconductor device which can convert the electric energy to visible light at a very high speed, it can also used as a communication device. Therefore, the VLC(Visible Light Communication) using the LED can perform the near field communication and lighting function at the same time without additional expenses. However, since the switching device of the conventional LED driver for VLC is operated in the linear region, there exist several drawbacks such as a poor power conversion efficiency and serious heat generation. On the other hand, since the proposed driver is operated in the on/off switching region, it features a higher efficiency and more improved heat generation. To verify the validity of the proposed LED driver, experimental results from a prototype of 20W rated LED driver applied to 3MHz bps broadcasting audio system are given.
Keywords
Manchester coding; Visible Light Communication; LED Driver; Control of brightness;
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  • Reference
1 H. L. Minh, D. O'Brien, G. Faulkner, L. Zeng, K. Lee, D. Jung, and Y. Oh, "High-speed visible light communication using multiple-resonant equalization", IEEE Photonics Technology, Vol. 20, No. 14, pp. 1243-1245, 2008, July.   DOI
2 K. Inoue, "Waveform Distortion in a Gain-Saturated Semiconductor Optical Amplifier for NRZ and Manchester formats", Optoelectronics, IEE Proceedings, Vol. 44, Issue 6, pp. 433-437, 1997.
3 문공보, 박찬국, 이장규, "CCR 반사경과 Manchester Coding을 이용한 광(光)통신 기법", 대한전기학회 하계학술대회 논문집, pp. 1792-1793, 2009. 7.
4 Y. Tanaka, T. Komine, S. Haruyama, M. Nakagawa, "Indoor Visible Light Transmission System Utilizing White LED Lights", IEICE Trans. on Commun., Vol. E86-B, No. 8, pp. 2440-2454, 2003. 8.
5 T. Komine, M. Kakagawa, "Fundamental Analysis for Visible-Light Communication System using LED lights", IEEE Trans. on Consumer Electron., Vol. 50, No. 1, pp. 100-107, 2004. 2.   DOI   ScienceOn
6 조의주, 이송이, 김주은, "가시광통신(VLC)의 기술 동향 및 이용 활성화 방안 연구", 한국전파진흥원, pp. 36, 42, 59-61, 2009. 1.
7 N. Kumar, N. Lourenco, M. Spiez, and R. Aguiar, "Visible light communication systems conception and VIDAS", IETE Journal, Vol. 25, Issue 6, pp. 359-367. 2008. 11.
8 Huang-Jen Chiu Yu-Kang Lo, Jun-Ting Chen, Shih-Jen Cheng, Chung-Yi Lin, and Shann-Chyi Mou, "A High-Efficiency Dimmable LED Driver for Low-Power Lighting Applications", IEEE Trans. on Industronics, Vol. 57, No. 2, pp. 735, 2010. 2.