Improved implementation of Chua's chaotic oscillator using current feedback op amp
Abstract
An improved implementation of Chua's chaotic oscillator is proposed. The new realization combines attractive features of the current feedback op amp (CFOA) operating in both voltage and current modes to construct the active three-segment voltage-controlled nonlinear resistor. Several enhancements are achieved: 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. Based on a linearized model of Chua's circuit, the useful tuning range of the major bifurcation parameter (G) and the expected frequency of oscillation, are estimated.
Publication Title
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Recommended Citation
Elwakil, A., & Kennedy, M. (2000). Improved implementation of Chua's chaotic oscillator using current feedback op amp. IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 47 (1), 76-79. https://doi.org/10.1109/81.817395
