Browse > Article
http://dx.doi.org/10.5207/JIEIE.2009.23.12.010

A Color Temperature and Illuminance Controllable LED Lighting System  

Kim, Hoon (한양대학교 전자전기제어계측공학과)
Youm, Jea-Kyoung (한양대학교 대학원 전기전자제어계측공학과)
Chung, Won-Sup (청주대학교 전자정보공학부)
Kim, Hee-Jun (한양대학교 전자컴퓨터공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.23, no.12, 2009 , pp. 10-22 More about this Journal
Abstract
This paper presents an LED lighting system with an LED color control algorithm that can independently change its color temperature and illuminance. To show the validity of the proposed algorithm, it is proven that its solution always exists. The proposed algorithm was applied to the control of an LED module that is composed of red, green, blue, and white (RGBW) LEDs. Its color temperature variation ranged from 3,500~7,500[$^{\circ}K$], and its illuminance ranges from 500~1,500[lux]. Within these range, the color temperature and illuminance deviations are as low as $\pm0.8$[%] when the junction temperature of LEDs are maintained at 40[$^{\circ}C$]. In the range of 30~70[$^{\circ}C$], the measured illuminance and color temperature deviations are as low as 2.1[%] and 3.6[%], and the compensated ones are as low as 1[%] and 0.49[%], when the desired illuminance and color temperature are 1,000[lux] and 6,500[$^{\circ}K$], respectively.nyang.ac.kr).
Keywords
Lighting; Lighting Control; LED Lighting; LED;
Citations & Related Records
연도 인용수 순위
  • Reference
1 P. Deurenberg, C. Hoelen, J. V. Meurs, and J. Ansems, 'Achieving color point stability in RGB multi-chip LED modules using various color control loops', Proc International Conference on Solid State Lighting, pp. 63-74, Aug. 1, 2005
2 L. E. Gallagher, 'Current regulator with AC and DC feedback', U.S. Patent 3,350,628, 1967
3 R. Munzert, and P. T. Krein, 'Issues in boundary control', Proc. Power Electronics Specialists Conf., Vol. 1, pp. 810-816, Jun 1996
4 S. Muthu, F. J. P. Schuurmans, and M. D. Pashley, 'Red, green, and blue LED based white light generation: Issues and control', Proc. IEEE Industry Application Conf., Vol. 1, pp. 327-333, Oct. 13-18, 2002
5 National Semiconductor, Co., 'O.5A constant current buck regulator for driving high power LEDs', LM3402/LM3402HV datasheet, Dec. 2008
6 Kim et al., 'Color temperature conversion system and method using the same', U.S. Patent 7,024,034, 2006
7 G. Strang, Linear Algebra and Its Applications, MIT Press, 2006
8 E. Kreyszing, Advanced Engineering Mathematics, John Wiley & Sons, 1999
9 G. Wyszecki, and W. S. Stiles, Color Science: concepts and methods, quantitative data and formulae, 2nd Ed., John Wily & Sons, 1982
10 Philips Lumileds Lighting, 'Power light source Luxeon K2', Luxeon K2 technical datasheet DS51, Jun. 2008
11 E. F. Schubert, Light-Emitting Diodes, Cambridge University Press, 2006
12 X. Qu, S.-C. Wong, and C. K. Tse, 'Color control system for RGB LED light sources using junction temperature measurement', Proc. IEEE Industrial Electronics Society, Nov. 5-8, 2007, pp. 1361-1368
13 P. Narra, and D. S. Zinger, 'An effective LED dimming approach', Proc. IEEE IAS2004, Vol. 3, pp. 1671-1676, Oct. 3-7, 2004
14 X. Xu, and X. Wu, 'High dimming ratio LED driver with fast transient boost converter', Proc. IEEE Power Electronics Specialists conf., pp. 4192-4195, Jun. 15-19, 2008
15 L. Svilainis, 'LED PWM dimming linearity investigation', Displays, Vol. 29, No. 3, pp. 243-249, Jul. 2008   DOI   ScienceOn
16 K. Lim, J.-C. Lee, G. Panotopoulos, and R. Helbing, 'Illumination and color management in solid state lighting', Proc. IEEE Industry Applications Conf., pp. 2616-2620, Oct. 8-12, 2006