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

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

    研究成果: Conference contribution

    4 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ホスト出版物のタイトルISOCC 2012 - 2012 International SoC Design Conference
    ページ483-486
    ページ数4
    DOI
    出版ステータスPublished - 2012
    イベント2012 International SoC Design Conference, ISOCC 2012 - Jeju Island
    継続期間: 2012 11 42012 11 7

    Other

    Other2012 International SoC Design Conference, ISOCC 2012
    CityJeju Island
    Period12/11/412/11/7

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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