Copper loss reduction for Plate Shape One Turn Coil in High Step-Down Center-Tapped rectifier Tomohide Shirakawa＊, Kazuhiro Umetani＊, Eiji Hiraki

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Other Title
  • 板状ワンターンコイルを採用した 高降圧中点タップ整流方式の銅損低減に関する取り組み
  • ハンジョウ ワンターンコイル オ サイヨウ シタ コウコウアツ チュウテン タップ セイリュウ ホウシキ ノ ドウ ソン テイゲン ニ カンスル トリクミ
Published
2019
DOI
  • 10.5416/jipe.45.121
Publisher
The Japan Institute of Power Electronics

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Description

In order to reduce copper loss, high step-down DC-DC converter often employs center-tapped rectifier. In addition, a plate shape one turn coil is utilized for transformer for making a high step-down ratio. We focused on the proximity effect in plate shape one turn coil, and investigate the cause of worsening the copper loss. In this paper, based on this investigation, we propose rectification method using winding integrated with rectifier. In addition, we discuss practical issues of the proposed method and present the solution strategy. The proposed method is verified by experiments, which suggests the effectiveness of the proposed method to high current applications.

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