Current conveyor chaos generators

Citation
As. Elwakil et Am. Soliman, Current conveyor chaos generators, IEEE CIRC-I, 46(3), 1999, pp. 393-398
Citations number
27
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS
ISSN journal
10577122 → ACNP
Volume
46
Issue
3
Year of publication
1999
Pages
393 - 398
Database
ISI
SICI code
1057-7122(199903)46:3<393:CCCG>2.0.ZU;2-W
Abstract
New RC chaos generators that utilize the second-generation current conveyor (CCII) as the active building block are presented. The very small input re sistance associated with the current conveyor low-impedance input terminal is shown to be responsible for stimulating the circuits' chaotic nature. Th e proposed chaotic oscillators originate from two sinusoidal oscillator cir cuits which are modified for chaos by replacing one of the linear resistors with a nonlinear resistor of antisymmetric current-voltage characteristics and adding a single capacitor. The elementary linear design equations of t he sinusoidal oscillators are used as a start paint for chaos modification to estimate all component values and identify tunable elements, mathematica l models of the proposed generators are derived and further modified to dem onstrate chaotic behavior with odd symmetrical nonlinearities. Suitability for VLSI integration is discussed. PSpice circuit simulations, numerical si mulations of the derived models, and experimental results are included.