A design of analog CMOS fuzzy inference circuits using OTAs

Author

Inoue, Takahiro ; Tsukano, Kyoko

Author_Institution

Graduate Sch. of Sci. & Technol., Kumamoto Univ., Japan

fYear

1993

fDate

1-3 Dec 1993

Firstpage

173

Lastpage

178

Abstract

A design of analog CMOS fuzzy operational circuits (a membership function circuit, a maximum circuit, a minimum circuit and a defuzzifier circuit) based on operational transconductance amplifiers (OTAs) is presented. SPICE simulations are given to show their operation speed and accuracy under the assumption that the standard 5 μm CMOS design is used. As an application, a 3×3 singleton fuzzy controller is synthesized using the proposed circuits. The simulation of this controller showed that the operation speed of the order of 1 MFLIPS (fuzzy logical inference per second) is easily realizable

Keywords

CMOS integrated circuits; analogue processing circuits; circuit analysis computing; control system synthesis; controllers; digital simulation; fuzzy control; inference mechanisms; linear integrated circuits; operational amplifiers; SPICE simulations; analog CMOS fuzzy inference circuits; defuzzifier circuit; maximum operation circuit; membership function circuit; minimum circuit; operational transconductance amplifiers; singleton fuzzy controller; Application software; CMOS analog integrated circuits; Circuit simulation; Circuit synthesis; Diodes; Fuzzy control; Fuzzy logic; Fuzzy systems; Operational amplifiers; SPICE;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Fuzzy Control and Intelligent Systems, 1993., IFIS '93., Third International Conference on

Conference_Location

Houston, TX

Print_ISBN

0-7803-1485-9

Type

conf

DOI

10.1109/IFIS.1993.324192

Filename

324192