A Mixed Signal Fuzzy Controller Using Current Mode Circuits

Authors:
Simone Orcioni;Giorgio Biagetti;Massimo Conti
Affiliations:
Dipartimento di Elettronica, Intelligenza Artificiale e Telecomunicazioni, Università Politecnica delle Marche, Ancona, Italy 60131;Dipartimento di Elettronica, Intelligenza Artificiale e Telecomunicazioni, Università Politecnica delle Marche, Ancona, Italy 60131;Dipartimento di Elettronica, Intelligenza Artificiale e Telecomunicazioni, Università Politecnica delle Marche, Ancona, Italy 60131
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2004

Citing 2
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Abstract

A mixed analog-digital fuzzy logic inference processor chip, designed in a 0.35-μm CMOS technology, is presented. The analog fuzzy engine is based on a novel current-mode CMOS circuit used for the implementation of fuzzy partition membership functions. The architecture consists of a 3 inputs--1 output analog fuzzy engine, internal digital registers to store the parameters of the fuzzy controller, and a digital subsystem that allows the programmability of the fuzzy controller via an I2C interface. The architecture, circuits, and some Cadence Spectre simulations are presented.