一种蔡氏混沌电路实验设计

Experimental Design of A Chua’s Chaotic Circuit

分立器件构成的混沌电路的响应受电路参数及储能元件初始状态影响,电感元件参数的不稳定带来电路混沌的不可控问题。该论文在介绍蔡氏混沌电路动力学原理的基础上,利用模拟电感代替无源独立电感,并进行了基于Multisim软件的仿真,得到了改进的蔡氏电路的相轨迹图。利用单面板腐蚀制作了实验电路,实验结果与仿真结果一致,验证了模拟电感的有效性。改进的混沌电路可作为电路实验的拓展教学案例,提高学生学习电路与电子工艺课程的积极性,同时也可以增强学生对混沌理论的理解。

Due to the response of chaotic circuit composed of discrete devices is affected by circuit parameters and the initial state of energy storage elements,the instability of inductance parameters may bring uncontrollable problem of circuit chaos.On the basis of introducing the dynamic principle of Chua’s chaotic circuit,this paper uses simulated inductor to replace the passive independent inductor,carries out the simulation based on Multisim software,and obtains the phase trajectory diagram of the improved Chua’s circuit.The experimental circuit,fabricated by single panel etching process,achieves the same experimental results with the simulation results,thus verifying the effectiveness of the simulated inductor.The improved chaotic circuit can be used as an expanded teaching case of circuit experiment to improve students’enthusiasm in learning circuit and electronic technology courses,thereby enhancing their understanding of chaotic theory.