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http://dx.doi.org/10.5207/JIEIE.2011.25.9.008

A Study on the Mathematical Modeling and Constant Current Adaptive Controller Design for Power LEDs  

Kim, Eung-Seok (한라대학교 제어계측공학과)
Kim, Young-Tae (강릉원주대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.25, no.9, 2011 , pp. 8-13 More about this Journal
Abstract
In this paper, a mathematical model of the power LED system including the drive circuit will be presented to control the power LEDs current. Using this mathematical model, the constant current adaptive controller will be designed. A constant current drive circuit for power LEDs will be configured using Buck-type converter. Precise constant current controller design is enabled by presenting the mathematical model of power LEDs including the current driving circuits. Using the mathematical model of power LEDs and its drive circuits, the constant current adaptive controller will be designed to obtain the robustness for the parameter uncertainties. In order to verify the validity of the proposed controller, computer simulations are performed.
Keywords
Power LED; Buck Converter; Current Control; Adaptive Control;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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