Design of Analog Fuzzy Logic Controllers in CMOS Technologies : Implementation Test and Application Fuzzy Logic and Fuzzy Systems Analog Basic Building Blocks Mixed Signal Programmable Fuzzy Logic Controllers Time Domain Signal Analysis Using Fuzzy Logic General Conclusions. Nowadays real time applications of Fuzzy Logic in different domains are being increasingly reported. ASIC based analog hardware becomes an interesting solution for these kinds of applications because it benefits from: savings on silicon surface and power consumption readily accomplishment with strict timing constraints and cost effective production. This book focuses in depth on the VLSI CMOS implementation and application of programmable analog Fuzzy Logic Controllers following a mixed signal philosophy. This is to say signals are processed in the analog domain whereas programmability is achieved by means of standard digital memories. This approach highlights the following crucial aspects: *The comprehensive study and analysis of the main analog fuzzy operators: Fuzzy Membership Functions T Norm T CoNorm and Defuzzifier circuits. *The study and development of mixed signal Fuzzy Controllers architectures targeting the requirements for different applications. *The fabrication and test of full ended demonstrators. *The partial fabrication and test of a prototype corresponding to a real time Fuzzy Logic application in the field of Signal Processing.