Chaotic Oscillations in Cascoded and Darlington-Type Amplifier Having Generalized Transistors

Jiri Petrzela and Miroslav Rujzl
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Jiri Petrzela: Department of Radio Electronics, Brno University of Technology, Technicka 12, 616 00 Brno, Czech Republic
Miroslav Rujzl: Department of Radio Electronics, Brno University of Technology, Technicka 12, 616 00 Brno, Czech Republic

Mathematics, 2022, vol. 10, issue 3, 1-25

Abstract: This paper describes, based on both numerical and experimental bases, the evolution of chaotic and, in some cases, hyperchaotic attractors within mathematical models of two two-port analog functional blocks commonly used inside radio-frequency systems. The first investigated electronic circuit is known as the cascoded class C amplifier and the second network represents a resonant amplifier with Darlington’s active part. For the analysis of each mentioned block, fundamental configurations that contain coupled generalized bipolar transistors are considered; without driving force or interactions with other lumped circuits. The existence of the structurally stable strange attractors is proved via the high-resolution composition plots of the Lyapunov exponents, numerical sensitivity analysis and captured oscilloscope screenshots.

Keywords: auto-oscillations; cascoded amplifier; Darlington pair; chaotic circuit; chaotic oscillator; hyper chaos; resonant amplifier; self-excited attractor; strange attractor (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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