Design of Analog Fuzzy Logic Controllers in CMOS Technologies

Dualibe, Carlos; Verleysen, Michel; Jespers, Paul

doi:10.1007/b101857

Cited by 22 publications

(18 citation statements)

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“…: αi=1). It has been proven [12] that this situation corresponds to the maximum standard deviation at the output of the grouped blocks 'consequent singleton+D/A' shown in Fig. 5.…”

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 89%

“…A comprehensive analysis of the systematic and mis-match errors for each block described above can be found in [12]. On one hand, systematic errors can be minimized by following proper design strategies.…”

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 99%

“…Therefore, an investigation about the spreading of the controller's dc behavior becomes mandatory. For this purpose, a methodical approach based on the propagation of the random errors through the different fuzzy operators along the signal path is discussed hereafter [2] [12]. This allows to quantify the incidence of the non-idealities presented by each building block on the accuracy of the controller.…”

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 99%

“…As in [13], we assume that the VT and β of all transistors are statistically independent random variables, whose variances follow the 'inverse of the transistor area' law (i.e. : σ the latter variances as a function of the transistors geometry, their biasing conditions and the technological parameters can be found in [12].…”

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 99%

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

Dualibe¹,

Jespers²,

Verleysen³

2020

JICS

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A digitally programmable analog 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 optimization 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: a 2.7% RMSE, 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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“…: αi=1). It has been proven [12] that this situation corresponds to the maximum standard deviation at the output of the grouped blocks 'consequent singleton+D/A' shown in Fig. 5.…”

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 89%

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 99%

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 99%

Section: Analysis Of the Accuracy Of The Controllermentioning

confidence: 99%

See 2 more Smart Citations

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

Dualibe¹,

Jespers²,

Verleysen³

2020

JICS

Self Cite

View full text Add to dashboard Cite

show abstract

“…The controller evaluates the firing degrees using the signals from DACs. We made reference to the work, 7 using the Differential regulated-cascode triode trans-conductor for the complementary membership functions (CFMF) illustrated in Figure 2. We used the complementary membership function since S-Norm operators are easier to implement than T-Norm with analog current-mode hardware.…”

Section: Vlsi Circuit Implementationmentioning

confidence: 99%

Fuzzy Control of Coding Schemes for Reducing Energy Dissipation in Off-Chip Buses

Visalli¹

2008

Journal of Low Power Electronics

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In this paper, we proposed an high-speed and low-power off-chip data bus interface based on the best coding schemes in this hard operative condition. We analyzed the clustered bus invert method and the bus switch coding, a newly proposed approach based on bus lines logically reordered. We proposed an high speed and low-power bus interface based on the combined employment of these two approaches controlled by a 9-rules Takagi-Sugeno analog fuzzy controller. The controller analyzes the binary traffic statistical property changing on the fly the used coding scheme. The fuzzy controller has been designed taking care of total energy dissipation such to do not compromise the benefit of coding approaches. The controller is able also to re-configure the bus switch subsection in an operative condition where original approach introduces strong power losses. We demonstrated the effectiveness of the approach designing at transistor level the analog fuzzy controller and the digital part of the bus interface. Simulation conducted with H-SPICE and NANOSIM confirmed the bus interface is the optimal trade-off for reducing dynamic energy in off-chip buses.

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Design and Application of Analog Fuzzy Logic Controllers

Dualibe

Verleysen

2004

Smart Adaptive Systems on Silicon

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Design of Analog Fuzzy Logic Controllers in CMOS Technologies

Cited by 22 publications

References 0 publications

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

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

Fuzzy Control of Coding Schemes for Reducing Energy Dissipation in Off-Chip Buses

Design and Application of Analog Fuzzy Logic Controllers

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