Dynamic behaviors in two novel autonomous circuits with a physical negative resistor characterized by nonsymmetric function

Presents two novel three-order autonomous circuits. The nonlinear element in the circuits may be any physical negative resistor, either piecewise-linear or irregular. Using a type-S negative resistance element, the authors observed the double scroll attractors similar to that in Chua's circuit. Using an avalanche transistor, they observed more complicated dynamic behaviors than in other autonomous circuits with piecewise-linear and symmetric elements.<
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