Common-mode Noise Reduction Circuit Design for Biosignal Acquisition System―in Comparison with the DRL

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2019/12/01

タイトル(英語): Common-mode Noise Reduction Circuit Design for Biosignal Acquisition System―in Comparison with the DRL

著者名: Minghui Chen (Nagoya Institute of Technology), Jianqing Wang (Nagoya Institute of Technology), Daisuke Anzai (Nagoya Institute of Technology), Georg Fischer (Friedrich-Alexander University of Erlangen-Nuremberg)

著者名(英語): Minghui Chen (Nagoya Institute of Technology), Jianqing Wang (Nagoya Institute of Technology), Daisuke Anzai (Nagoya Institute of Technology), Georg Fischer (Friedrich-Alexander University of Erlangen-Nuremberg)

キーワード: common-mode noise，biosignal sensing，biosignal acquisition，electromagnetic interference，electromagnetic compatibility，EMC

要約(英語): Common-mode (CM) noise is a primary interference to biological signal (biosignal) detection systems, but is hardly solved with passive filtering. Conventionally, a driven-right-leg (DRL) circuit is employed to drive down the CM noise level. In this work, We first clarified how much influence an imbalance in the contact resistance could have for three different kinds of circuits, and then proposed a novel design of imbalance cancellation circuit using the digital potentiometer(digiPOT). Simulation evaluations were performed and the results showed that our circuit design can exceed the DRL by more than 20 dB in reducing the CM noise under the same conditions.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.139 No.12 （2019） 特集：電磁環境評価技術に関する論文

本誌掲載ページ: 657-662 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/139/12/139_657/_article/-char/ja/