Chaotic oscillator configuration using a frequency dependent negative resistor

被引:23
作者
Elwakil, AS [1 ]
Kennedy, MP [1 ]
机构
[1] Univ Coll Dublin, Dept Elect & Elect Engn, Dublin 4, Ireland
关键词
D O I
10.1142/S0218126699000190
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Chaos is observed from a fourth-order autonomous circuit inspired by Chua's circuit and obtained by replacing the active symmetric nonlinear resistor (Chua's diode) with a parallel combination of a frequency dependent negative resistor (FDNR) and a general-purpose signal diode. Accordingly, nonlinearity is introduced by a passive device with antisymmetric current-voltage characteristics whereas activity is transferred to the FDNR. The observed chaotic attractor has similar dynamics to the Colpitts chaotic attractor and we show its topological equivalence to the well-known Rossler attractor. Experimental results, PSpice simulations and numerical simulations of the derived mathematical models are included.
引用
收藏
页码:229 / 242
页数:14
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