基于符号函数的蔡氏电路设计及其应用

novel approach to Chua’s circuit based on sign function is proposed which overcomes the physical implementation complexity of Chua’s diode in Chua’s circuit. The Chua’s circuit state equation by sign function links modular circuits according to corresponding relationships among state variables of equation for the hardware circuit, so as to design a Chua’s circuit that can produce two-scroll Chua’s chaotic attractor without inductor. The study of the equivalent circuit by drive-response synchronization format shows that synchronization is good. The test results of the hardware circuit and simulation results are in good agreement with experimental results, which confirms the validity of the design.