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A Study on Efficiency Improvement of High-frequency Current Output Inverter Based on Immittance Conversion Element

A Study on Efficiency Improvement of High-frequency Current Output Inverter Based on Immittance Conversion Element

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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: 2015/05/01

タイトル(英語): A Study on Efficiency Improvement of High-frequency Current Output Inverter Based on Immittance Conversion Element

著者名: Shun Suzuki (Tokyo Metropolitan University), Toshihisa Shimizu (Tokyo Metropolitan University)

著者名(英語): Shun Suzuki (Tokyo Metropolitan University), Toshihisa Shimizu (Tokyo Metropolitan University)

キーワード: current output inverter,immittance conversion,wireless power transmission,magnetic field resonance

要約(英語): Wireless power transmission (WPT) utilizing magnetic-field resonance has been given increasing attention by power electronics engineers and industries. Actually, many technical papers related to WPT circuits based on magnetic-field resonance have been published to verify their high-efficiency power transmission characteristics. However, a 10MHz-class high-frequency power supply suitable for high-power transmission systems has not been studied sufficiently, although small power rating converters such as the direct-current resonance class-E multi-resonant ZVS WPT system with a 74.9W output power have been proposed. Hence, the authors propose a new circuit topology for high-power and high-frequency inverter systems suitable for high-power WPT.In this paper, the authors propose a novel high-frequency current-output-type inverter circuit topology utilizing an immittance conversion element and WPT circuit, which utilize LC anti-resonant circuits suitable for the proposed current-output-type inverter.As a result of the prototype test, the proposed inverter provides a high conversion efficiency of more than 88.8% at 11.33MHz operation with a 142.1W output power rating. Also, the proposed WPT circuit suitable for the current-output-type inverter provides a high transmission efficiency of more than 94.1% at 11.33MHz with 2cm transmission gaps and a 46.1W output power.

本誌: IEEJ Journal of Industry Applications Vol.4 No.3 (2015) Special Issue on “IPEC-Hiroshima”

本誌掲載ページ: 220-226 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/4/3/4_220/_article/-char/ja/

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