Simulink Implementation of Fuzzy Functional Models for Analog Modules

The CAD of mixed electronic circuits asks for high level functional models of analog modules for efficient simulation. Being universal approximators, fuzzy systems can be successfully involved in this kind of models. Because Simulink has become a widely used software package in academia and industry for modeling and simulating dynamic systems, we chose it for implementation of our functional models. The models, based on two fuzzy logic systems describe the input voltage-output voltage relation in terms of frequency and phase shift and include also the temperature effect. The experimental results provided by the fuzzy functional model of a CMOS transconductance amplifier prove a high modeling accuracy