Title :
Implementation of a CMOS mixed-signal digital FLC chip using new fuzzifier and current mode A/D
Author :
Yosefi, Gh ; Aminifar, S.
Author_Institution :
Islamic Azad Univ. of Mahabad, Mahabad
Abstract :
In this paper we design a new Fuzzy Logic controller (FLC) chip with mixed-signal input and digital output. For implementing this idea, a new programmable Fuzzifier circuit based on generation of three current membership functions including Gaussian, Trapezoidal and Triangular shapes and three new circuits for implementing Min operators are proposed. We improved a Multiplier/Divider circuit and a current mode Analog to Digital (A/D) converter with 7 bit resolutions to complete and implement Defuzzifier block. The proposed controller was designed less than 0.1 mm2 in 0.35 um CMOS standard technology. The inference speed and Power consumption of the controller are about 16.6 MFLIPS and 13.4 mw respectively.
Keywords :
CMOS integrated circuits; analogue-digital conversion; controllers; current-mode circuits; fuzzy control; mixed analogue-digital integrated circuits; programmable circuits; CMOS mixed-signal digital; FLC chip; Gaussian function; current mode analog-to-digital converter; digital output; divider circuit; fuzzifier circuit; fuzzy logic controller chip; mixed-signal input; multiplier circuit; power 13.4 mW; size 0.35 mum; trapezoidal function; triangular function; Analog-digital conversion; CMOS analog integrated circuits; CMOS digital integrated circuits; CMOS integrated circuits; CMOS technology; Circuit simulation; Energy consumption; Fuzzy control; Fuzzy systems; Voltage; A/D converter; CMOS; FLC chip; current mode circuits; fuzzification; min operator;
Conference_Titel :
Information, Communications & Signal Processing, 2007 6th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0982-2
Electronic_ISBN :
978-1-4244-0983-9
DOI :
10.1109/ICICS.2007.4449743
