Modular current-mode multiple input minimum circuit for fuzzy logic controllers

Abstract

A new current-mode multiple input minimum circuit designed with 4n+1 transistors for n inputs is proposed. Not only is the problem of accumulated errors solved, but the operation speed is also increased owing to the proposed multiple input minimum circuit having a one stage structure. This circuit had been fabricated using 0.8 /spl mu/m CMOS technology. Experimental results have verified the function of the circuit and shown the merit of high accuracy and a large dynamic range.