Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Distributed Power Conversion LED Driver Circuit using Parasitic Inductance
Authors Sang-Eon Kim ; Chung-Wook Roh
DOI 10.6113/TKPE/2013.18.2.117
Page pp.117-122
ISSN 1229-2214
Keywords LED driver; distributed power conversion; parasitic inductance
Abstract The distributed power conversion LED driver circuit using parasitic inductance is proposed in this paper. while the conventional LED driver circuit is composed of the large size devices and heatsinks, the proposed circuit can be realized with the small sized no heatsink based. since the processing power can be effectively distributed. Also by using the wire parasitic inductance of the LED string, the proposed circuit can be implemented without external magnetic device. As a result, the proposed circuit which features the small size and volume con be realized even without LED driver module(LDM) board. since, all the device can be attached to the existing LED array Module(LAM) board. Therefore, it features that cost savings and volume reduction of circuit. To confirm the validity of the proposed circuit, theoretical analysis and experimental results from a distributed power conversion LED driver circuit prototype are presented.