Journal
INTERNATIONAL JOURNAL OF ELECTRONICS
Volume 98, Issue 5, Pages 667-677Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207217.2010.520151
Keywords
Chua's circuit; chaotic behaviour; double-scroll attractor; gyrator; bifurcations
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In this study we describe how to build an inductorless version of the classic Chua's circuit. A suitable inductor for Chua's circuit is often hard to procure. The required inductor for the circuit is designed using simple circuit elements such as resistors, capacitors and operational amplifiers. The complete circuit can be implemented by using off-the-shelf components, and it can readily be integrated on a single chip. This design of Chua's circuit allows the original dynamics to be slowed down to just a few hertz, enabling implementation of sophisticated control schemes without severe time restrictions. Another novel feature of the circuit is that losses associated with capacitors due to leakages can easily be compensated by providing negative resistance using the same setup. The chaotic behaviour of the circuit is verified by PSpice and Multisim simulation and also by experimental study on a circuit breadboard. The results give excellent agreement with each other and with the results of previous investigators.
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