Nonlinear Phenomena in Complex Systems, 2008, Vol.11, No.2, pp.187-192

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2008, Vol.11, No.2, pp.187-192

Experimental Synchronization of Two Resistively Coupled Duffing-type Circuits.
Ch. K. Volos, I. M. Kyprianidis, and I. N. Stouboulos

Last decades chaotic synchronization became a very important research field among the scientists, because of its applications in secure communications. This work explores the phenomenon of chaotic synchronization between two identical nonlinear circuits. The circuits we used are two second order nonlinear electrical circuits described by the well known Duffing's equation. We coupled the circuits via a linear resistor and we examined the behavior of the system in two different cases of coupling, (bidirectional and unidirectional). In both cases of coupling, we found out, that the system was synchronized for different values of the coupling resistor. Finally, we compared the theoretical results, from the simulation, with the experimental results, and we saw that the system had the expected behavior.
Key words: chaotic synchronization, coupled Duffing-type circuits

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