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以电流为状态变量,提出了一种基于电流传输器的电流模式网格多涡卷混沌电路。该电路由电流积分器、电流比例运算电路和电流模式阶梯波序列电路构成。相对于传统的电压模式混沌电路,该电流模式多涡卷混沌电路具有宽频谱、低功耗和便于集成等优点。通过改变系统的时间常数τ,对比研究了电流模式混沌电路和电压模式混沌电路的高频性能。Pspice仿真结果表明,提出的电流模式混沌电路能够产生高频率的多涡卷混沌吸引子。
Taking current as state variable, a current-mode grid multi-scroll chaotic circuit based on current transmitter is proposed. The circuit consists of a current integrator, a current proportional operation circuit and a current mode staircase wave sequence circuit. Compared with the traditional voltage mode chaotic circuits, this current mode multi-scroll chaotic circuit has the advantages of wide spectrum, low power consumption and easy integration. By changing the time constant τ of the system, the high frequency performance of the current mode chaotic circuit and the voltage mode chaotic circuit is studied. Pspice simulation results show that the proposed current mode chaotic circuit can generate high-frequency multi-scroll chaotic attractors.