NEW CHAOS GENERATORS

Originating from a sinusoidal oscillator circuit that employs the curr ent feedback op amp (CFOA) as the active building block, a new chaos g enerator that utilizes a discrete nonlinear device of asymmetrical non linearity is proposed. Two different positions of the nonlinearity wit hin the circuit structure are investigated. A slight modification inco rporating the addition of a single resistor to the generator is shown to facilitate its tuning and affect the dynamics of its chaotic behavi or. Experimental laboratory results agree well with PSpice simulations . and both are included. (C) 1997 Elsevier Science Ltd.