Abstract
In this paper, a new four-dimensional four-wing chaotic circuit based on Qi chaotic system is proposed and the nonlinear characteristics are analyzed from the point of view of symmetry, dissipation and equilibrium point. Subsequently, numerical analysis methods of nonlinear circuit, such as phase diagram, bifurcation diagram and Lyapunov exponent spectrum, are used to study the rich dynamic behavior with the change of system parameters and initial conditions. Numerical results indicate that the nonlinear system can generate attractor with different topological under distinct system parameter. Meanwhile, the coexistence of this system is abundant with diverse initial conditions. Finally, the experimental results of circuit are in agreement with the numerical simulations which prove the circuit implantation of system is feasible completely.
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