Authors: E. Alarcón, M. Iannazzo, J. Madrenas, J.M. Moreno, S. Gomáriz, F. Guinjoan and A. Poveda.
Journal/Conference: Proceedings of the 41st IEEE Midwest Symposium on Circuits and Systems (MWSCAS98), Notre-Dame, Indiana, August 1998.
Abstract -A mixed-signal VLSI circuit that efficiently maps the processing required for a Fuzzy Knowledge-Based Controller (FKBC) is presented. The proposed architecture is constituted by digitally-programmable continuous-time blocks to perform inference and switched-current memory cells to store in current-mode the partial information resulting form its pipeline operation. This FKBC is intended to provide multidimensional nonlinear-function approximation for switching power converters optimum control. Details of a new pulse-width-modulated defuzzyfication scheme are included. Transistor level post-layout simulation results for a 0.8mm CMOS technology are included which validate the different blocks operation, their compatibility and the feasibility of the sequential architecture.
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