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http://dx.doi.org/10.5370/KIEEP.2011.60.4.253

LED Driver Design with Power Optimum Control Function  

Lee, Seung-Woo ((주)엘디티)
Shin, Hong-Gyu (원광대학교 전자 및 제어공학부)
Cho, Seong-Ik (전북대학교 전자공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.60, no.4, 2011 , pp. 253-256 More about this Journal
Abstract
LEDs have small size, long lifespan, high reliability, low power consumption and high color efficiency. Using such a characteristics, LED Back Light Unit has been studying actively. This paper proposes LED driver to minimize power consumption due to LED forward voltage($V_F$) difference and temperature rising. Compared to conventional LED driver, the proposed driver have excellent stability, brief structure and linear output voltage of DC-DC boost converter. Proposed LED Driver circuit was designed using 0.35um CMOS technology. And its operation was verified through simulation.
Keywords
LED Driver; LCD; BLU; Boost Converter; LED String;
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  • Reference
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