RECONFIGURABLE IMPLEMENTATIONS OF CHUA'S CIRCUIT


KILIÇ R. , Dalkiran F.

INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, cilt.19, ss.1339-1350, 2009 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 19 Konu: 4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1142/s0218127409023664
  • Dergi Adı: INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
  • Sayfa Sayıları: ss.1339-1350

Özet

Chua's circuit is very suitable as a programmable chaos generator because of its robust nonlinearity. In addition to exhibiting a rich variety of bifurcation and chaos phenomenon, this circuit can be modeled and realized with a fixed main system block and many different nonlinear function blocks such as piecewise-linear function, cubic-like function, piecewise-quadratic function and other trigonometric functions. This paper presents a FPAA (Field Programmable Analog Array) based programmable implementation of Chua's circuit. Nonlinear function blocks used in Chua's circuit are modeled with an FPAA and hence a model can be rapidly changed for realization of other nonlinear functions. In this study, four FPAA-based reconfigurable implementations of Chua's circuit have been realized. Experimental results agree with numerical simulation and results obtained from discrete electronic implementations of Chua's circuit.