Classical Physics

    

Electrical Chirping Induced by Frequency Controlled Chaos in 180nm Cmos

Authors: Sai Venkatesh Balasubramanian

A simple circuit to generate chaos is proposed, with the central principle being the coupling of two sinusoidal signals with mismatched frequencies to two terminals of an NMOS transistor. Standard chaotic characterization performed using Kolmogorov Entropy and Lyapunov exponents reveal that the output is a frequency controlled chaos. By coupling this output with another sinusoidal input to a second NMOS transistor, a clear segregation of frequencies is observed, analogous to the chirping phenomenon seen typically in optical systems. The nature of chirping is investigated using phase portraits, Lyapunov Exponents and distance maps. The extreme simplicity of the proposed circuit coupled with the new phenomenon of chirping being observed as a result of frequency controlled chaos form the main highlights of the present work.

Comments: 4 Pages.

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Submission history

[v1] 2015-10-27 09:19:46

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