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AUT Journal of Electrical Engineering
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Naderii, A., Ghasemzadehii, H., Pourazar, A., Aliasgharyii, M. (2009). Design of a Fuzzy Controller Chip with New Structure, Supporting Rational-Powered Membership Functions. AUT Journal of Electrical Engineering, 41(2), 65-71. doi: 10.22060/eej.2009.286
A. Naderii; H. Ghasemzadehii; A. Pourazar; M. Aliasgharyii. "Design of a Fuzzy Controller Chip with New Structure, Supporting Rational-Powered Membership Functions". AUT Journal of Electrical Engineering, 41, 2, 2009, 65-71. doi: 10.22060/eej.2009.286
Naderii, A., Ghasemzadehii, H., Pourazar, A., Aliasgharyii, M. (2009). 'Design of a Fuzzy Controller Chip with New Structure, Supporting Rational-Powered Membership Functions', AUT Journal of Electrical Engineering, 41(2), pp. 65-71. doi: 10.22060/eej.2009.286
Naderii, A., Ghasemzadehii, H., Pourazar, A., Aliasgharyii, M. Design of a Fuzzy Controller Chip with New Structure, Supporting Rational-Powered Membership Functions. AUT Journal of Electrical Engineering, 2009; 41(2): 65-71. doi: 10.22060/eej.2009.286

Design of a Fuzzy Controller Chip with New Structure, Supporting Rational-Powered Membership Functions

Article 8, Volume 41, Issue 2, Summer and Autumn 2009, Page 65-71  XML PDF (819 K)
Document Type: Research Article
DOI: 10.22060/eej.2009.286
Authors
A. Naderii* 1; H. Ghasemzadehii2; A. Pourazar2; M. Aliasgharyii2
1Corresponding Author, A. Naderi is with the Department of Electronic Engineering, urmia University, Urmia, Iran (e-mail: ali.n.1384@gmail.com).
2H. Ghasemzadeh, A. Pourazar and M. Aliasghary are with the Department of Electronic Engineering, urmia University, Urmia, Iran (e-mail: hadi.g.1384@gamil.com, pourazar.alireza@gmail.com, m.aliasghari@gmail.com ).
Abstract
In this paper, a new structure possessing the advantages of low-power consumption, less hardware and high-speed is proposed for fuzzy controller. The maximum output delay for general fuzzy logic controllers (FLC) is about 86 ns corresponding to 11.63 MFLIPS (fuzzy logic inference per second) while this amount of the delay in the designed fuzzy controller becomes 52ns that corresponds to 19.23 MFLIPS. This mixed analog/digital realization of the circuit makes the design programmable and extendable. The proposed controller supports Rational-Power Membership Functions with a resolution of 0.03125. Simulation results of the controller using HSPICE simulator level 49 in 0.35um in CMOS process technology (BSIM3v3) show an average power consumption of 4.38mW, and an RMS error of 1.26%. This controller can be used in many applications in which there is a need for a controller chip by correct programming with system experts. Meanwhile the whole area of the chip is 0.0775mm2.
Keywords
Fuzzy controller; Rational-powered membership function; CMOS; low power
References

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[2]     C. Y.Chen, Y. T. Hsieh and B. D. Liu; “Circuit implementation of linguistic-hedge fuzzy logic cotroller in current-mode” IEEE Transaction on Fuzzy Systems, Vol. 11, pp.624-646, 2003.

[3]     M. Mottaghi Kashtiban, A. Khoei, and Kh. Hadidi; “A Current-mode, First-Order Takagi-Sugeno-Kang FLC, Supporting Rational-Powered Membership Functions” IEICE TRANS. ELECTRON., Vol. E90-C, No.6 2007.

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[5]     C. Dualibe, P. Jespers, and M. Verleysen; “A 5.26 MFLIPS programmable Analogue Fuzzy Logic Controller in a Standard CMOS 2.4μ Technology”, ISCAS, pp. 377-380, May 2000.

[6]     Y.Chen, Y.Huang, D.Liu; “Current-mode defuzzifier circuit to realise the centroid strategy“, IEE Proc.-Circuits Devices Syst., vol. 144, No. 5, Octobr 1997.

[7]     A. Naderi, A. Khoei, Kh. Hadidi, "High resolution RPMF using logarithmic and exponential approximation in CMOS technology," 16th International Conf. on Electrical Engineering, (ICEE) Tehran, Iran, 248 – 254, 2008.

[8]     A. j. Lopez-martin and A. Carlosena; “Current-Mode Multiplier/Divider Circuits Based on the MOS Translinear Principle,” Analog Integrated Circuits and Signal Processing, pp. 265-278, 2001.

[9]     A. Naderi, A. Khoei, Kh. Hadidi; “A New High Speed and Low Power 4-Quadrant CMOS Analog Multiplier in Current-Mode”, International Journal of Electronics and Communications, Elsevier, Vol. 63, Issue 9, 2009.

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