Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2009.04b
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- Pages.85-87
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- 2009
A High-voltage LED Drive IC Using a Voltage Clamp Bias
Voltage Clamp Bias를 사용한 고전압 LED Drive IC
- Kim, Seong-Nam (dankook University) ;
- Park, Shi-Hong (dankook University)
- Published : 2009.04.03
Abstract
Due to the enormous progress in light emitting diodes (LEDs), LEDs have been become a good solution for lightings. In LED driver for lighting applications, it is required a high input voltage to drive more LEDs. Therefore, a high-voltage should be changed to low-voltage to supply power for drive IC. In this paper, a LED drive IC with hysteretic-buck converter topology using a voltage clamp bias circuit was proposed and verified through simulations.