Multiple-output dimmable LED driver with flyback converter

Li An Hsu, Tsorng Juu Liang, Wei Jing Tseng, Yu Meng Lin

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

2 Citations (Scopus)

Abstract

In this paper, a multiple-output dimmable LED driver with flyback converter is designed and implemented. The sequences and conducting times of red (R), green (G), and blue (B) control switches are determined by the voltage level from the primary-side digital signal processor. The flyback converter with primary-side control is operated in quasi-resonant mode, frequency limitation with the valley switching mode, and frequency reduction mode according to the dimming level and input voltage conditions. Finally, a 20 W flyback LED driver for red (24.5 V/ 0.2 A), green (36.8 V/ 0.2 A), and blue (37.5 V/ 0.2 A) LED outputs with the universal input voltages 90-264 Vrms is designed and implemented. The dimming range for each output can be varied from 5 %-100 %. The line regulation for 5 %-100 % dimming level of RGB outputs is within 7 %. The maximum errors for the non-dimming (100 % dimming) and dimming conditions are 2.9 mA and 3.6 mA, respectively. The highest system efficiency at full load condition is 85.54 %.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages134-139
Number of pages6
ISBN (Electronic)9781509049745
DOIs
Publication statusPublished - 2018 Apr 25
Event1st IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018 - Hamilton, New Zealand
Duration: 2018 Jan 302018 Feb 2

Publication series

NameProceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
Volume2018-January

Other

Other1st IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018
CountryNew Zealand
CityHamilton
Period18-01-3018-02-02

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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  • Cite this

    Hsu, L. A., Liang, T. J., Tseng, W. J., & Lin, Y. M. (2018). Multiple-output dimmable LED driver with flyback converter. In Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018 (pp. 134-139). (Proceedings - 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2018; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IESES.2018.8349862