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http://dx.doi.org/10.4313/JKEM.2009.22.7.559

A High Voltage LED Drive IC using Voltage Clamp Bias  

Kim, Seong-Nam (단국대학교 전자공학과)
Park, Shi-Hong (단국대학교 전자공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.7, 2009 , pp. 559-562 More about this Journal
Abstract
Due to the enormous progress achieved in light emitting diodes (LEDs) LEDs have been become a good solution for lightings. In LED driver for lighting applications, it is required high input voltage to drive more LEDs. Therefore, high-voltage should be changed to low-voltage to supply power for drive IC. In this paper, LED drive IC using voltage clamp bias circuit, it use a hysteretic-buck converter topology was proposed and verified through experiments.
Keywords
Voltage clamp; Bias; LED driver; Switching regulator;
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  • Reference
1 H. Yamagata and N. Hoshimiya, 'Voltage clamp processor system', IEEE transactions of biomedical engineering, Vol. BME-30, No. 2, 1983
2 R. Miftakhutdinov, 'Analysis of synchronous buck converter with hysteretic controller at high slew rate load current transients', Proc. of High Frequency Power conversion Conference, p. 55, 1999
3 A. R. Brown and R. D. Middlebrook, 'Sampled- data Modeling of Switching Regulator', p. 349-3 69, 1981
4 H. Broeck and G. Sauerlander 'Power driver topologies and control schemes for LEDs', IEEE APEC 2007, p. 1319, 2007
5 K. Smedley and S. Cuk, 'One-cycle control of switching converters', IEEE Trans. Power Electron, Vol. 10, No. 6, p. 625, 1995   DOI   ScienceOn