Effects of RF Stimulus and Negative Feedback on Nonlinear Circuits

Details Effects of RF Stimulus and Negative Feedback on Nonlinear Circuits Effects of RF Stimulus and Negative Feedback on Nonlinear Circuits

2002-08-27

arxiv.org/abs/nlin/0208039v1

IEEE Trans. Circuits Systems I: Regular Papers, 51, 748 (2004).

Nonlinear Sciences

Chaotic Dynamics

Submitted to IEEE Transactions on Circuits and Systems I, August, 2002

Scientific paper

We investigate the combined effect of rectification and nonlinear dynamics on the behavior of several simple nonlinear circuits. We consider the classic Resistor-Inductor-Diode (RLD) circuit driven by a low frequency source when an operational amplifier with negative feedback is added to the circuit. Radio frequency signals are applied to the circuit, causing significant changes in the onset of period-doubling and chaos. Measurements indicate that this effect is associated with a DC voltage induced by rectification of the RF signal in the circuit. The combination of rectification and nonlinear circuit dynamics produce qualitatively new behavior, which opens up a new channel of RF interference in circuits.

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