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http://dx.doi.org/10.17661/jkiiect.2018.11.5.586

Design of the 140W level-small sized LED Power Control Circuit  

An, Ho-Myoung (Department of Electronics, Osan University)
Lee, Juseong (Center of Human-centered Interaction for Coexistence)
Kim, Byungcheul (Department of Electronic Engineering, Gyeongnam National University of Science and Technology(GnTECH))
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.11, no.5, 2018 , pp. 586-592 More about this Journal
Abstract
In this paper, HIC with various functions is proposed for the design 140W LED power control circuit. The proposed HIC integrates constant voltage/constant current circuit, short circuit protection circuit, internal constant voltage circuit, and dimmer circuit, thereby reducing the horizontal length of the PCB by 16% comparing with the conventional system. Through various experiments, we verified the performance of each block implemented inside of HIC with numerical results. (Constant voltage variation ratio: 2.9%, dimmer circuit duty variation within 5%, stable short protection at 720 mA) Since the PCB area can be significantly reduced by applying the proposed HIC. It is possible to reduce the PCB manufacturing time which takes up most of the manufacturing time, however, It is expected that the faulted power module can be replaced without replacing the whole PCB, so that maintenance / repair can be made easier.
Keywords
LED driver; SMPS; constant voltage and current; dimmer function; lighting system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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