ANALYSIS AND SYNTHESIS OF CHAOTIC CIRCUITS USING MEMRISTOR PROPERTIES

Zdeněk Hruboš – Tomáš Gotthans

   This paper provides an innovative practical realization of a memristor based chaotic circuit. The first part discusses the mathematical analysis of the proposed system, including calculation of an eigenvalues, bifurcation diagram and largest Lyapunov exponents. Another parts deal with circuitry realization and the influence of parasitic properties of active elements. The circuit simulations obtained by PSpice environment and the practical measurement results on a breadboard are presented in the last part of this paper. The main aim of this work is an innovative realization of the memristor based chaotic circuit with one type of energy-storage element (linear passive capacitor) and with simpler construction in comparison to other circuits. The next contribution consists in verification of designed circuit with respect to influence of parasitic properties of active elements to chaos destruction.

Keywords: differential equations, nonlinear, eigenvalues, Lyapunov exponent, bifurcation, OTA, parasitic, plane projection

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