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Chaotic Phenomena in a Simple 3D Autonomous Circuit with a Diode Pair

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Kandiban G., Manimaran S., Balachandran A.
Acta Physica Polonica A
|
2012
|
vol. 121
|
issue 3
586-588
EN
The simple 3D-chaotic dynamics of an autonomous oscillator circuit was studied by measuring its responsible in the form of phase-portrait, power spectrum and chaotic time series. The new realization combines attractive features of the current feedback op-amp operating in both voltage and current modes to construct the active linear negative conductance. The component count is reduced and the chaotic spectrum is extended to higher frequencies. In addition, a buffered and isolated voltage output directly representing a state variable is made available. The circuit consists of just three linear elements (two capacitors and one inductor), one linear negative conductance and two ideal diodes. The power spectra are presented to confirm the strong chaotic nature of the oscillations of the circuit. The performance of the circuit is investigated by means of experimental simulation and numerical confirmation of the appropriate differential equations. The features of the obtained results are respected for various engineering systems such as chaos communication systems with robustness against various interferences.
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