A novel programmable CMOS fuzzifiers using voltage-to-current converter circuit

Authors:
K. P. Abdulla;Mohammad Fazle Azeem
Affiliations:
Department of Electronics and Communication Engineering, PA College of Engineering, Karnataka, Mangalore, India;Department of Electronics and Communication Engineering, PA College of Engineering, Karnataka, Mangalore, India
Venue:
Advances in Fuzzy Systems - Special issue on High Performance Fuzzy Systems for Real World Problems
Year:
2012

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Abstract

This paper presents a new voltage-input, current-output programmable membership function generator circuit (MFC) using CMOS technology. It employs a voltage-to-current converter to provide the required current bias for the membership function circuit. The proposed MFC has several advantageous features. This MFC can be reconfigured to perform triangular, trapezoidal, S-shape, Z-Shape, and Gaussian membership forms. This membership function can be programmed in terms of its width, slope, and its center locations in its universe of discourses. The easily adjustable characteristics of the proposed circuit and its accuracy make it suitable for embedded system and industrial control applications. The proposed MFC is designed using the spice software, and simulation results are obtained.