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A modular programmable CMOS analog fuzzy controller chip

AuthorsRodríguez-Vázquez, Ángel ; Navas-González, Rafael; Delgado-Restituto, Manuel ; Vidal Verdú, Fernando
Issue Date1999
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Transactions on Circuits and Systems II - Analog and Digital Signal Processing 46(3): 251-265 (1999)
AbstractWe present a highly modular fuzzy inference analog CMOS chip architecture with on-chip digital progranirnability. This chip consists of the interconnection of parameterized instances of two different kind of blocks, namely label blocks and rule blocks. The architecture realizes a lattice partition of the universe of discourse, which at the hardware level means that the fuzzy labels associated to every input (realized by the label blocks) are shared among the rule blocks. This reduces the area and power consumption and is the key point for chip modularity. The proposed architecture is demonstrated through a 16-rule twoinput CMOS l-fim prototype which features an operation speed of 2.5 Mflips (2.5 x 106 fuzzy inferences per second) with 8.6 mW power consumption. Core area occupation of this prototype is of only 1.6 mm2 including the digital control and memory circuitry used for programmability. Because of the architecture modularity the number of inputs and rules can be increased with any hardly design effort. -. © 1999 IEEE.
Publisher version (URL)http://dx.doi.org/10.1109/82.754859
Identifiersdoi: 10.1109/82.754859
issn: 1057-7130
Appears in Collections:(IMSE-CNM) Artículos
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