On Designing Mixed-Signal Programmable Fuzzy Logic Controllers as Embedded Subsystems in Standard CMOS Technologies

Dualibe, Carlos;Jespers, Paul;Verleysen, Michel
(2001) 14th Symposium on Integrated Circuits and System Design (SBCCI′2001) — Location: Pirenopolis (Brazil) (10.September.2001)

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Authors
  • Dualibe, CarlosUniversidad Católica de Córdoba
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  • Jespers, PaulUCLouvain
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  • Author
Abstract
A digitally - programmable analogue Fuzzy Logic Controller (FLC) is presented. Input and output signals are processed in the analog domain whereas the parameters of the controller are stored in a built-in digital memory. Some new functional blocks have been designed whereas others were improved towards the optimisation of the power consumption, the speed and the modularity while keeping a reasonable accuracy, as it is needed in several analogue signal processing applications. A nine-rules, two-inputs and one-output prototype was fabricated and successfully tested using a standard CMOS 2.4μ technology, showing good agreement with the expected performances, namely: from 2.22 to 5.26 Mflips (Mega fuzzy logic inferences per second) at the pin terminals (@CL=13pF), 933 μW power consumption per rule (@Vdd=5V) and 5 bits of resolution. Since the circuit is intended for a subsystem embedded in an application chip (@CL ≤ 5pF) up to 8 Mflips may be expected.
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Citations

Dualibe, C., Jespers, P., & Verleysen, M. (2001). On Designing Mixed-Signal Programmable Fuzzy Logic Controllers as Embedded Subsystems in Standard CMOS Technologies. Proceedings of SBCCI′2001, 14th Symposium on Integrated Circuits and System Design, p. 194-200. https://hdl.handle.net/2078.5/226457