サトウ　ノブオ   Satoh Nobuo   佐藤　宣夫    所属   千葉工業大学  工学部 宇宙・半導体工学科    千葉工業大学  工学研究科 工学専攻    千葉工業大学  工学研究科 機械電子創成工学専攻    職種   教授
言語種別	英語
発行・発表の年月	2024/05/01
形態種別	学術雑誌
査読	査読あり
標題	A Nondestructive Method to Evaluate of DC-DC Converters Using Subsurface Magnetic Field Imaging with Pulse Width Modulation
執筆形態	共著
掲載誌名	IEEJ Journal of Industry Applications
掲載区分	国外
出版社・発行元	The Institute of Electrical Engineers of Japan
巻・号・頁	13(3),pp.301-307
総ページ数	7
担当区分	最終著者,責任著者
著者・共著者	Masaki Sumi, Kazusana Nagashima, Tomoyuki Tamura, Nobuo Satoh
概要	This study proposes a nondestructive method to evaluate switching power supply circuits using subsurface magnetic field imaging with pulse-width modulation. DC-DC converters are widely used to transform the voltage of lithium-ion batteries and other devices in many applications such as electric vehicles, telecommunications, medicine, uninterruptible power supplies, and various consumer products. Although a nondestructive evaluation method using subsurface magnetic field imaging with electromagnetic field reconstruction was proposed to address this problem in a previous work, the upper limit of the response frequency of this method was dependent on the magnetic sensor. In this study, a pulse-width modulation method was incorporated into the circuit to measure the magnetic field distribution of a DC-DC converter operating above the response frequency of magnetic sensors. We report an evaluation of the operation of a DC-DC converter in terms of the measured magnetic field distribution.
DOI	https://doi.org/10.1541/ieejjia.23009288
PermalinkURL	https://www.jstage.jst.go.jp/article/ieejjia/13/3/13_23009288/_article/-char/en