べき指数を任意の値に変更できるべき乗変換回路

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: 2020/01/01

タイトル(英語): Exponentiation Conversion Circuit Capable of Changing the Power Exponent to Any Value

著者名: 新井　将広（東洋大学大学院 理工学研究科 電気電子情報専攻），佐野　勇司（東洋大学大学院 理工学研究科 電気電子情報専攻）

著者名(英語): Masahiro Arai (Graduate School of Science and Engineering, Course of Electricity, Electronics and Communications, Toyo University), Yuji Sano (Graduate School of Science and Engineering, Course of Electricity, Electronics and Communications, Toyo University)

キーワード: 信号変換回路，サブスレッショルド，非線形補正，IoT，べき乗関数　　signal conversion circuit，subthreshold，nonlinearity compensation，IoT，exponentiation function

要約(英語): An exponentiation conversion circuit, which can be changed its power exponent to any value to compensate nonlinearity in electronic devices, is proposed. In the proposed circuit, new exponential conversion circuit converts signal multiplied logarithmically transformed input signal by the power exponent value, thereby obtaining the exponential power raised power function characteristic. The proposed circuit is a small scale circuit by utilizing an exponential characteristic in the subthreshold operation of MOSFET. For example, proposed circuit is suitable for integrating on a microcomputer chip used for IoT. The performance of the circuit was evaluated by prototype IC made by 0.6 μm CMOS process. In circuit simulation of the prototype IC, the exponent could be varied in the range of 0.038 to 2.46. By proposing the cascode exponential conversion circuit, the signal dynamic range was expanded.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.140 No.1 （2020） 特集：電子回路関連技術

本誌掲載ページ: 24-31 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/ieejeiss/140/1/140_24/_article/-char/ja/