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http://dx.doi.org/10.5762/KAIS.2012.13.9.4177

Implementation of AC Direct Driver Circuit for Ultra-slim LED Flat Light System  

Cho, Myeon-Gyun (School of Information and Communication Systems, Semyung University)
Choi, Hyo-Sun (FD Create Ltd.)
Yoon, Dal-Hwan (Department of Electronic Engineering, Semyung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.9, 2012 , pp. 4177-4185 More about this Journal
Abstract
LEDs are becoming the most suitable candidate replacing traditional fluorescent lamps because of its eco-friendly characteristics. LEDs are also actively used to design green building system and to make outdoor billboard as a back-light system due to its high energy efficiency. In this paper, we have developed AC direct driver for $12{\times}12$ FLB(flexible LED board) and LED flat light without SMPS. It has LID-PC-R101B driver IC that can support the high power factor and be composed of LED switching circuit in group. Also, an elaborate system designs can guarantee a high luminous efficiency, a high reliability and a low power consumption. The proposed FLB has the ultra slim shape of $450{\times}450$ mm, width of 4 mm and weight of 280 g. In the end, we have developed a prototype of FLB for billboard and flat light for room lighting with AC direct driver iposrder to verify the performance of the proposed system.
Keywords
AC direct driver; Flexible LED board; Flat light system; Switch resistor; power factor; Reliability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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