Journal
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
Volume 17, Issue 11, Pages 4328-4335Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cnsns.2012.01.029
Keywords
Multi-scroll; CMOS integrated circuits; Floating gate MOS transistor; Saw-tooth function; CMOS process variations
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Funding
- CONACyT [131839-Y, 204229]
- Consejeria de Innovacion, Ciencia y Empresa, Junta de Andalucia, Spain [UPPUE-PTC-033, TIC-2532]
- JAE-Doc program of CSIC
- FSE
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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. (C) 2012 Elsevier B.V. All rights reserved.
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