Implementation of an application-specific fuzzy controller by means of a mixed-signal sequential architecture

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-m...

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Bibliographic Details
Published in1998 Midwest Symposium on Circuits and Systems (Cat. No. 98CB36268) pp. 430 - 433
Main Authors Alaron, E., Iannazzo, M., Madrenas, J., Moreno, J.M., Gombriz, S., Guinjoan, F., Poveda, A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1998
Subjects
Circuits
CMOS technology
Control systems
Fuzzy control
Fuzzy sets
Hardware
Multidimensional systems
Nonlinear control systems
Signal processing algorithms
Switching converters
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Summary: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 from its pipeline operation. This FKBC is intended to provide multidimensional nonlinear function approximation for switching power converter optimum control. Details of a new pulse-width-modulated defuzzyfication scheme are included. Transistor level post-layout simulation results for a 0.8 /spl mu/m CMOS technology are included which validate the different block operations, their compatibility and the feasibility of the sequential architecture.
ISBN:9780818689147
0818689145
DOI:10.1109/MWSCAS.1998.759523