High efficiency multi-channel LED driver based on SIMO switch-mode converter

Luchen Yu; Yuan Zhu; Minjie Chen; T. Yoshihara

doi:10.1109/ISOCC.2012.6406901

High efficiency multi-channel LED driver based on SIMO switch-mode converter

Luchen Yu, Yuan Zhu, Minjie Chen, T. Yoshihara

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

This paper presents a new method to drive multiple LED strings efficiently. The proposed driver is based on single-inductor multiple-output (SIMO) switch-mode converters. Because the proposed driver gets rid of linear current regulators and maintains desired constant current of each string directly, it maximizes the overall efficiency and handles mismatching problems of the conventional driver. The simulation results show excellent performance on four-string LED with four 1W LEDs in each string including individual dimming. The measured efficiency was improved at least by 15% compared with the conventional driver of linear current regulators.

Original language	English
Title of host publication	ISOCC 2012 - 2012 International SoC Design Conference
Pages	483-486
Number of pages	4
DOIs	https://doi.org/10.1109/ISOCC.2012.6406901
Publication status	Published - 2012
Event	2012 International SoC Design Conference, ISOCC 2012 - Jeju Island Duration: 2012 Nov 4 → 2012 Nov 7

Other

Other	2012 International SoC Design Conference, ISOCC 2012
City	Jeju Island
Period	12/11/4 → 12/11/7

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Keywords

high efficiency
individual dimming
LED driver
SIMO swicth-mode converter

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

Cite this

Yu, L., Zhu, Y., Chen, M., & Yoshihara, T. (2012). High efficiency multi-channel LED driver based on SIMO switch-mode converter. In ISOCC 2012 - 2012 International SoC Design Conference (pp. 483-486). [6406901] https://doi.org/10.1109/ISOCC.2012.6406901

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Access to Document

10.1109/ISOCC.2012.6406901