Chaotic Oscillations in Cascoded and Darlington-Type Amplifier Having Generalized Transistors
MATHEMATICS(2022)
摘要
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.
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关键词
auto-oscillations, cascoded amplifier, Darlington pair, chaotic circuit, chaotic oscillator, hyper chaos, resonant amplifier, self-excited attractor, strange attractor
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