Non-autonomous second-order chaotic circuit with comparator

A novel non-autonomous nonlinear oscillator is suggested. The oscillator contains the integrator based second-order RC resonance loop, a comparator employed as a nonlinear device, and a buffer. When externally forced with periodic signal Asin(/spl omega//sub d/f), it exhibits a chaotic response in the certain bands of A and /spl omega//sub d/ parameters.