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

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

研究成果: Conference contribution

摘要

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%.

原文English
主出版物標題2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1626-1633
頁數8
ISBN(電子)9784886864055
DOIs
出版狀態Published - 2018 十月 22
事件8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan
持續時間: 2018 五月 202018 五月 24

出版系列

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

Other

Other8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
國家Japan
城市Niigata
期間18-05-2018-05-24

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • 引用此

    Huang, T. W., Liang, T. J., Tseng, W. J., & Huang, J. X. (2018). Single-Inductor Multiple-Outputs Dimmable LED Driver with Buck Converter. 於 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 (頁 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