Analysis and Design of Operational Amplifier Stability Based on Routh-Hurwitz Stability Criterion

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2018/12/01

タイトル(英語): Analysis and Design of Operational Amplifier Stability Based on Routh-Hurwitz Stability Criterion

著者名: Jianlong Wang (Division of Electronics and Informatics, Gunma University), Gopal Adhikari (Division of Electronics and Informatics, Gunma University), Nobukazu Tsukiji (Division of Electronics and Informatics, Gunma University), Haruo Kobayashi (Division

著者名(英語): Jianlong Wang (Division of Electronics and Informatics, Gunma University), Gopal Adhikari (Division of Electronics and Informatics, Gunma University), Nobukazu Tsukiji (Division of Electronics and Informatics, Gunma University), Haruo Kobayashi (Division

キーワード: operational amplifier，stability，nyquist stability criterion，Routh-Hurwitz criterion，phase margin

要約(英語): This paper proposes to use Routh-Hurwitz stability criterion for analysis and design of the opamp stability, when its small equivalent circuit is derived; this can lead to explicit stability condition derivation for opamp circuit parameters. In the theoretical part, we describe the equivalence between Nyquist and Routh-Hurwitz stability criteria under some conditions, and we deduce the relationship that between parameters of Routh-Hurwitz stability criterion and phase margin of the operational amplifier. In the verification part, our statement is confirmed with LTspice simulations at transistor level opamp circuits.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.138 No.12 （2018） 特集：電気・電子・情報関係学会東海支部連合大会

本誌掲載ページ: 1517-1528 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/138/12/138_1517/_article/-char/ja/