A Hybrid Converter for Improving Light Load Efficiency

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2011/08/01

タイトル(英語): A Hybrid Converter for Improving Light Load Efficiency

著者名: Masaya Takahashi (Department of Electrical and Electronic Engineering, Oita University), Kimihiro Nishijima (Department of Electrical and Electronic Engineering, Oita University), Michihiko Nagao (Department of Electrical and Electronic Engineering, Oita University), Terukazu Sato (Department of Electrical and Electronic Engineering, Oita University), Takashi Nabeshima (Department of Electrical and Electronic Engineering, Oita University)

著者名(英語): Masaya Takahashi (Department of Electrical and Electronic Engineering, Oita University), Kimihiro Nishijima (Department of Electrical and Electronic Engineering, Oita University), Michihiko Nagao (Department of Electrical and Electronic Engineering, Oita University), Terukazu Sato (Department of Electrical and Electronic Engineering, Oita University), Takashi Nabeshima (Department of Electrical and Electronic Engineering, Oita University)

キーワード: light load，MOSFET driver，hybrid converter，efficiency，DC-DC converter，switching loss

要約(英語): In order to reduce power consumption of electronic equipment in stand-by mode, idle-mode and sleep-mode, a simple efficiency improvement technique for switching regulator in light load region is proposed. In this technique, under the light load, the small switching elements in a MOSFET driver circuit are used instead of the switching elements in a main regulator circuit to reduce driving losses. Of course, under the load heavier than light load, the MOSFET driver drives the switching elements in the main regulator circuit. The efficiency of a 2.5V/5A prototype buck converter is improved from 47.1% to 72.7% by using the proposed technique.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.131 No.8 （2011） 特集：IPEC-Sapporo 2010

本誌掲載ページ: 1007-1012 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/131/8/131_8_1007/_article/-char/ja/