A fast and simple implementation of Chua's oscillator using a "cubic-like" Chua diode
Abstract
The nonlinearity in Chua's oscillator is commonly implemented as a three-segment piecewise-linear resistor. The piecewise-linear nature of the element means that the implementation requires a significant amount of circuitry and the speed of operation is limited. The qualitative behavior of Chua's oscillator has also been captured using a smooth cubic nonlinearity; the implementation of the latter also requires a significant amount of circuitry and suffers from limited speed of operation. This work describes a novel implementation of Chua's oscillator using just four transistors and a battery to produce a cubic-like nonlinearity. The circuit is simple, robust, and capable of operating at frequencies over one thousand times that of the original Chua's oscillator.
Publication Title
Proceedings of the 2005 European Conference on Circuit Theory and Design
Recommended Citation
O'Donoghue, K., Kennedy, M., & Forbes, P. (2005). A fast and simple implementation of Chua's oscillator using a "cubic-like" Chua diode. Proceedings of the 2005 European Conference on Circuit Theory and Design, 2, 83-86. https://doi.org/10.1109/ECCTD.2005.1522998
