Dual Active Bridge DC-DC Converter based Wide Dimming Range LED Driver With High-Speed Turn-Off for High-Brightness LED Floodlight

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: 2019/05/01

タイトル(英語): Dual Active Bridge DC-DC Converter based Wide Dimming Range LED Driver With High-Speed Turn-Off for High-Brightness LED Floodlight

著者名: Hisahiro Yamanaka (Department of Electrical and Electronic Engineering, Yamaguchi University), Hiroaki Yamada (Department of Electrical and Electronic Engineering, Yamaguchi University)

著者名(英語): Hisahiro Yamanaka (Department of Electrical and Electronic Engineering, Yamaguchi University), Hiroaki Yamada (Department of Electrical and Electronic Engineering, Yamaguchi University)

キーワード: dual active bridge converter，LED floodlight，LED driver

要約(英語): This article proposes a dual active bridge (DAB) converter based wide dimming range LED driver with high-speed turn-off for high-brightness LED floodlight. In conventional LED drivers, the LED current does not turn off immediately due to the transient response of LED on-resistance and output smoothing capacitor. Furthermore, due to the constraint of minimum on-interval of MOSFET, the low LED current region is limited. DAB converter is a bidirectional DC-DC converter configured by two full-bridge converters and a transformer. The LED current feedback control is used for wide-range dimming control, and the LED voltage feedback control is used to achieve quick turn-off of the LED floodlight. Experimental results demonstrate that the proposed system is effective for LED drivers.

本誌: IEEJ Journal of Industry Applications Vol.8 No.3 （2019） Special Issue on “IPEC-Niigata 2018”

本誌掲載ページ: 556-557 p

原稿種別: 研究開発レター／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/3/8_556/_article/-char/ja/