ダウンコンバージョン法を用いた高周波磁場の計測と電流経路可視化

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: 2023/03/01

タイトル(英語): Visualization of Current Paths by High-Frequency Magnetic Fields Using the Down-Conversion Method

著者名: 角　真輝（千葉工業大学），鶴岡　智彦（千葉工業大学），田村　知孝（千葉工業大学），佐藤　宣夫（千葉工業大学）

著者名(英語): Masaki Sumi (Chiba Institute of Technology), Tomohiko Tsuruoka (Chiba Institute of Technology), Tomoyuki Tamura (Chiba Institute of Technology), Nobuo Satoh (Chiba Institute of Technology)

キーワード: 電磁場再構成法，非破壊解析，絶縁型DC-DCコンバータ_x000D_　　electromagnetic field reconstruction method，nondestructive evaluation，isolated DC-DC converter

要約(英語): Subsurface magnetic imaging using the electromagnetic field reconstruction is a non-destructive evaluation methods for electric components and circuits. Subsurface magnetic imaging has a considerable limitation because the resolution depends on both the measurement distance and sensitivity of magnetic sensor. In principle, it is difficult to evaluate electronic components and circuits with currents that exceed the response frequency of the sensor. In this study, we propose a down-conversion method for the magnetic field distribution and electric current path images of an isolated DC-DC power conversion circuit, with currents exceeding the response frequency of the magnetic sensor. The circuit was measured with a connected resistance and open circuit condition. The magnetic field distribution and the current path images accurately show that the magnetic field transferred the energy from the input side to the output terminal. Furthermore, the electric current path image shows that there is no electric current flow to the output when the terminal was in open circuit condition.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.143 No.3 （2023） 特集：半導体電力変換研究会

本誌掲載ページ: 236-241 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/143/3/143_236/_article/-char/ja/