Browse > Article
http://dx.doi.org/10.7471/ikeee.2017.21.4.368

Improvement of PWM Driving Control Characteristics for Low Power LED Security Light  

Park, Hyung-Jun (Dept. of Material & Energy Engineering in Kyungwoon University)
Kim, Nag-Cheol (Dept. of Smart Electronics in Korea Polytechnics)
Kim, In-Su (Dept. of Material & Energy Engineering in Kyungwoon University)
Publication Information
Journal of IKEEE / v.21, no.4, 2017 , pp. 368-374 More about this Journal
Abstract
In this Paper, we developed a low power type LED security light using LED lighting that substitutes a 220[V] commercial power source for a solar cell module instead of a halogen or a sodium lamp. in addition, a PWM type drive control circuit is designed to minimize the heat generation problem and the drive current of the LED drive controller. in developed system, The light efficiency measurement value is 93.6[lm/W], and a high precision temperature sensor is used inside the controller to control the heat generation of the LED lamp. In order to eliminate the high heat generated from the LED lamp, it is designed to disperse quickly into the atmosphere through the metal insertion type heat sink. The heat control range of LED lighting was $50-55[^{\circ}C]$. The luminous flux and the lighting speed of the LED security lamp were 0.5[s], and the beam diffusion angle of the LED lamp was about $110[^{\circ}C]$ by the light distribution curve based on the height of 6[m].
Keywords
LED Security Light; Optical Efficiency; Solar Module; Temperature; Solar Generating System;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Fukuda, M. Optical Semiconductor Devices, New York: John Wiley & Sons, 1999.
2 Bhattachharya. P. Semiconductor Optoelectronic Devices. 2nd ed. Upper Saddle River, NJ: Prentice Hall,
3 Neamen, D. A. Semiconductor Physics ans Devices: Basic Prinsiples, 3rd ed. Chicago: Irwin, 1999.
4 Kim. E. G. LED Light Control Eng. Taeyoung, 2012.
5 Ku. K. J., LED light Handbook, Sungandang, 2011.
6 Streetman, B., and Banerjee S. Solid State Electronic Devices, 6th ed. Englewood Cliffs, NJ: Printice Hall, 2005.
7 Schubert, E, F. Light-Emitting Diodes, UK: Cambridge University Press, 2003.