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Revista mexicana de física
versão impressa ISSN 0035-001X
Resumo
TREJO-GUERRA, R. et al. Realization of multiscroll chaotic attractors by using current-feedback operational amplifiers. Rev. mex. fis. [online]. 2010, vol.56, n.4, pp.268-274. ISSN 0035-001X.
Multiscroll chaotic attractors are physically implemented by using commercially available current-feedback operational amplifiers (CFOAs). The values of the circuit elements are obtained systematically by a proposed technique based in the saturation of the CFOA to create Piece-Wise Linear (PWL) functions. Herein the technique is verified by Spice simulations and in experimental form by using CFOAs to generate n-scroll attractors in a systematic way. Lyapunov exponents are given to prove the chaotic behavior.
Palavras-chave : n-scroll attractors; Chua's circuit; break point; Lyapunov exponent; CFOA; PWL function.