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Integrated circuit generating 3- and 5-scroll attractors

Authors
Journal
Communications in Nonlinear Science and Numerical Simulation
1007-5704
Publisher
Elsevier
Volume
17
Issue
11
Identifiers
DOI: 10.1016/j.cnsns.2012.01.029
Keywords
  • Multi-Scroll
  • Cmos Integrated Circuits
  • Floating Gate Mos Transistor
  • Saw-Tooth Function
  • Cmos Process Variations
Disciplines
  • Design

Abstract

Abstract This paper introduces the experimental realization of the first integrated circuit of a multi-scroll continuous chaotic oscillator showing 3- and 5-scroll attractors. It is based on a variant of the Chua’s system. The most relevant issue is the implementation of a saw-tooth-like nonlinear function, which is designed by using floating gate MOS (FGMOS) transistors. Therefore, the realization of a voltage-to-current nonlinear cell by a piecewise-linear approach allows us to have only two external control inputs instead of numerous external voltage references, as usually done in current circuit realizations. Experimental results of the proposed integrated multi-scroll oscillator along with its corner analysis are provided.

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