Design and Simulation of Fuzzy System Using Operational Transconductance Amplifier

Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 31)


In this paper a well defined method for the design of fuzzy system using operational transconductance amplifier was discussed. This paper also presents the various types of operational transconductance amplifier: simple OTA, fully differential OTA and Balanced OTA. Proposed model of fully differential OTA and balance OTA is illustrated, out of which balance OTA is the best. Fuzzy system includes fuzzification of the input variables, application of the fuzzy operator (AND or OR) in the antecedent, implication from the antecedent to the consequent, aggregation of the consequents across the rules, and defuzzfication. The fuzzy system (including all blocks) for estimating risk involved in an engineering project has been designed, exhibits a gain of 36.24 dB, input resistance with 44.13 kΩ, output resistance with 2.163 kΩ, CMRR with 47.68 dB, slew rate with 0.6 V/µs and power dissipation with 197 W.


Operational transconductance amplifier Fuzzy system Analog circuit Electrical parameters SPICE 


  1. 1.
    Gayakwad, R.A.: Op-Amps and Linear Integrated Circuits, 3rd edn. Prentice Hall of India Pvt. Ltd., New Delhi (2002)Google Scholar
  2. 2.
    Sedra, S.S.: Microelectronic Circuits, 5th edn. Oxford University Press, Oxford (2004)Google Scholar
  3. 3.
    Mahalingam, S.A.P., Mamun, M., Rahman, L.F., Zaki, W.M.D.W.: Design and analysis of a two stage operational amplifier for high gain and high bandwidth. Aust. J. Basic Appl. Sci. 6(7), 247–254 (2012)Google Scholar
  4. 4.
    Patel, P.D., Shah, K.A.: Design of low power two stage CMOS operational amplifier. Int. J. Sci. Res. 2(3), 432–434 (2013)Google Scholar
  5. 5.
    Allen, P.E., Holberg, D.R.: CMOS Analog Circuit Design. International Student Edition, Oxford (2011)Google Scholar
  6. 6.
    Berkan, R.C., Trubatch, S.L.: Fuzzy System Design Principles, 1st edn. Wiley-IEEE Press, Hoboken-Piscataway (1997)Google Scholar
  7. 7.
    Drankov, D., Hellendoorn, H., Reinfrank, M.: An Introduction to Fuzzy Control. Springer, New York (1993)CrossRefGoogle Scholar
  8. 8.
    Yen, J., Langari, R.: Fuzzy Logic: Intelligent Control and Information. Prentice Hall, Upper Saddle River (1998). (United States Edition)Google Scholar
  9. 9.
    Jain, S.: Design and simulation of fuzzy implication function of fuzzy system using two stage CMOS operational amplifier. Int. J. Emerg. Technol. Comput. Appl. Sci. (IJETCAS) 7(2), 150–155 (2014)Google Scholar
  10. 10.
    Jain, S.: Design and simulation of fuzzy membership functions for the fuzzification module of fuzzy system using operational amplifier. Int. J. Syst. Control Commun. (IJSCC) 6(1), 69–83 (2014)CrossRefGoogle Scholar
  11. 11.
    Zadeh, L.A., Berkeley, C.A.: Online Database.
  12. 12.
    Pant, S.N., Holbert, K.E.: A Fuzzy Logic in Decision Making and Signal Processing [online database].
  13. 13.
    Pant, S.N., Holbert, K.E.: A Fuzzy Logic in Decision Making and Signal Processing [online database]
  14. 14.
    Nguyen, M.A.: PSPICE Tutorial, Class: Power Electronic 2. Colorado State University StudentGoogle Scholar
  15. 15.
    Rashid, M.H.: Introduction to PSICE Using OrCAD for Circuits and Electronics, 3rd edn. Prentice-Hall, Inc., Upper Saddle River (2009)Google Scholar
  16. 16.
    Sorkhabi, M.M., Toofan, S.: Design and simulation of high performance operational transconductance amplifier. Can. J. Electr. Electron. Eng. 2(7), 275–281 (2011)Google Scholar
  17. 17.
    Sinenchio, E.S., Martinez, J.S.: CMOS transconductance amplifiers, architectures and active filters: a tutorial. IEEE Proc. Circuits Devices Syst. 147(1), 3–12 (2000)CrossRefGoogle Scholar
  18. 18.
    Jain, S.: Implementation of fuzzy system using operational transconductance amplifier for ERK pathway of EGF/Insulin leading to cell survival/death. J. Pharm. Biomed. Sci. 4(8), 701–707 (2014)Google Scholar

Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Jaypee University of Information TechnologyWaknaghat, SolanIndia

Personalised recommendations