Integrated circuit implementation of fuzzy controllers

Author

Huertas, JosC L. ; Sanchez-Solano, Santiago ; Baturone, Iluminada ; Barriga, Angel

Author_Institution

Dept. de Diseno de Circuitos Analogicos, Inst. de Microelectron. de Sevilla, Spain

Volume

31

Issue

7

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

1051

Lastpage

1058

Abstract

This paper presents mixed-signal current-mode CMOS circuits to implement programmable fuzzy controllers that perform the singleton or zero-order Sugeno´s method. Design equations to characterize these circuits are provided to explain the precision and speed that they offer. This analysis is illustrated with the experimental results of prototypes integrated in standard CMOS technologies. These tests show that an equivalent precision of 6 b is achieved. The connection of these blocks according to a proposed architecture allows fuzzy chips with low silicon area whose inference speed is in the range of 2 Mega FLIPS (fuzzy logic inferences per second),

Keywords

CMOS integrated circuits; fuzzy control; inference mechanisms; integrated circuit design; microcontrollers; mixed analogue-digital integrated circuits; programmable controllers; equivalent precision; inference speed; microcontrollers; mixed-signal current-mode CMOS circuits; programmable fuzzy controllers; singleton method; standard CMOS technologies; zero-order Sugeno´s method; CMOS technology; Circuit testing; Design methodology; Equations; Fuzzy control; Fuzzy sets; Fuzzy systems; Hardware; Helium; Silicon;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.508221

Filename

508221