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http://dx.doi.org/10.6113/JPE.2014.14.4.632

Analysis and Design of a High-Efficiency Boundary Conduction Mode Tapped-Inductor Boost LED Driver for Mobile Products  

Kang, Jeong-Il (Research & Development Office, Visual Display, Samsung Electronics Co., Ltd.)
Han, Sang-Kyoo (School of Electrical Engineering, College of EECS, Kookmin University)
Han, Jonghee (Research & Development Office, Visual Display, Samsung Electronics Co., Ltd.)
Publication Information
Journal of Power Electronics / v.14, no.4, 2014 , pp. 632-640 More about this Journal
Abstract
For low-power high-frequency LED driver applications in small form factor mobile products, a high-efficiency boundary conduction mode tapped-inductor boost converter is proposed. In the proposed converter, the switch and the diode achieve soft-switching, the diode reverse-recovery is alleviated, and the switching frequency is very insensitive to output voltage variations. The circuit is quantitatively characterized, and the design guidelines are presented. Experimental results from an LED backlight driver prototype for a 14 inch notebook computer are also presented.
Keywords
Current control; DC-DC power conversion; Efficiency; ZVS converters;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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