A Completely Capacitor-less, LED-switching Offline Lighting System

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/03/01

タイトル(英語): A Completely Capacitor-less, LED-switching Offline Lighting System

著者名: Kenji Yamamoto (Graduate School, Shizuoka Institute of Science and Technology), Richard Lum, Hisashi Takahashi (Graduate School, Shizuoka Institute of Science and Technology)

著者名(英語): Kenji Yamamoto (Graduate School, Shizuoka Institute of Science and Technology), Richard Lum, Hisashi Takahashi (Graduate School, Shizuoka Institute of Science and Technology)

キーワード: light emitting diode，LED，LED lighting，offline LED driver，LED switching，electrolytic capacitor-less

要約(英語): Recently LED lighting apparatus are becoming more popular and well received by users. An offline LED apparatus needs to have electrolytic capacitors inside to supply LEDs with a regulated DC voltage. Although LEDs are characterized by longevity, the shorter lifetime of the constituent electrolytic capacitors limit the lifetime of the LED lighting apparatus. That means that actual LED lifetime is being wasted, consequently wasting the manufacturing cost. This paper proposes a new LED drive circuit topology, which does not need any electrolytic capacitors and shows the simulation results of the circuit. Also described are simulation results of its efficiency, the power factor, and EMC characteristics without any reactance at the line interface. From the simulation results, it is shown that the circuit topology has the potential for practical use.

本誌: IEEJ Journal of Industry Applications Vol.8 No.2 （2019） Special Issue Ⅰ on “Motion Control and its Related Technologies”　Special Issue Ⅱ on “IPEC-Niigata 2018”

本誌掲載ページ: 379-385 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/2/8_379/_article/-char/ja/