Journal
NONLINEAR DYNAMICS
Volume 62, Issue 4, Pages 859-866Publisher
SPRINGER
DOI: 10.1007/s11071-010-9768-5
Keywords
Single amplifier biquad; Chaotic electronic circuits; Chaos; Bifurcations
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Funding
- University Grant Commission (UGC), India [34-506/2008]
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Two simple autonomous chaotic electronic circuits have been proposed in this paper. The core of each of the circuits consists of a single amplifier biquad (SAB). We have proposed two configurations of converting this SAB into chaotic oscillators using suitable passive nonlinear element and a storage element in the form of an inductor. The mathematical models of the proposed chaotic circuits have been constructed, which are fourth order autonomous nonlinear differential equations. The behavior of the proposed circuits has been investigated through numerical simulations, Spice-based circuit simulations and electronic hardware experiments and they agree well with each other. It has been found that both the circuits show complex behaviors like bifurcations and chaos for a certain range of circuit parameters.
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