Single-Inductor Multiple-Outputs Dimmable LED Driver with Buck Converter

Ta Wei Huang, Tsorng Juu Liang, Wei Jing Tseng, Jun Xian Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Individual LED dimming control is required for RGB light mixing applications by controlling LED currents independently with multiple-output LED drivers. In this thesis, a single-inductor multiple-output dimmable LED driver with buck converter is designed. According to the overall output power and input voltage conditions, the buck converter with the primary-side control can be operated in QR mode, frequency limitation and frequency reduction mode. The varied frequency controlled signal method is proposed to control the dimming sequence and the conducting times of the RGB LED strings. Finally, the buck-type SIMO LED driver with the universal input voltages 90 - 264 Vrms to drive Red (25 V/0.2 A), Green (40 V/0.2 A) and Blue (40.5 V/0.2 A) LED lamps is implemented. The dimming range is from 5 % to 100 % individually. The highest error of the dimming is 10% and the highest efficiency is 94%.

Original languageEnglish
Title of host publication2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1626-1633
Number of pages8
ISBN (Electronic)9784886864055
DOIs
Publication statusPublished - 2018 Oct 22
Event8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan
Duration: 2018 May 202018 May 24

Publication series

Name2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Other

Other8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
CountryJapan
CityNiigata
Period18-05-2018-05-24

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Huang, T. W., Liang, T. J., Tseng, W. J., & Huang, J. X. (2018). Single-Inductor Multiple-Outputs Dimmable LED Driver with Buck Converter. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 (pp. 1626-1633). [8507692] (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/IPEC.2018.8507692