LED Driver Based on Boost Circuit and LLC Converter

Jianguang Ma; Xueye Wei; Liang Hu; Junhong Zhang

doi:10.1109/ACCESS.2018.2866502

IEEE Access (Jan 2018)

LED Driver Based on Boost Circuit and LLC Converter

Jianguang Ma,
Xueye Wei,
Liang Hu,
Junhong Zhang

Affiliations

Jianguang Ma: ORCiD; School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China
Xueye Wei: School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China
Liang Hu: School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China
Junhong Zhang: School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China

DOI: https://doi.org/10.1109/ACCESS.2018.2866502
Journal volume & issue: Vol. 6
pp. 49588 – 49600

Abstract

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In order to reduce the size and cost of a medium-power light-emitting diode (LED) driver, a novel single-stage LED driver integrating a boost converter with a half-bridge LLC resonant converter has been proposed. This topology is composed of a boost power factor correction circuit operating in a discontinuous conduction mode and an isolated LLC circuit unit with soft-switching characteristics. The proposed LED driver only adopted two switch components, thus benefiting from control simple and without employing an extra switch driver and a control circuit. The operating principle and characteristics of the proposed LED driver are analyzed in detail. In addition, experimental results of a laboratory prototype for supplying a 100-W/70-V LED lighting systems from 220-V/50-Hz ac line voltage are presented to verify well the correctness of the theoretical analysis and parameters’ design.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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