Hybrid modeling and characteristic analysis of nonlinear memcapacitor with threshold voltage
A memcapacitor is a new type of basic circuit element that appears after the basic circuit components of the traditional inductors,capacitors and resistors.Due to its non-volatile and non-linear characteristics,it has a wide range of applications in many fields.In order to make the memcapacitor model closer to the actual memcapacitor and to facilitate the connection with other two-port circuit elements,the charge control mathematical model of the memcapacitor was improved by introducing the threshold voltage,and a two-port simulation model of the memcapacitor with the threshold voltage was established by using hybrid modeling method of combining Simscape and Simulink.The influence of the amplitude and frequency of the trigger voltage on the hysteresis loop of the simulation model was analyzed through the simulation.The simulation results show that the simulation model matches the basic characteristics of the memcapacitor,that is,the hysteresis loop widens with the increase of the voltage amplitude and narrows with the increase of the voltage frequency.This model lays the foundation for the application and simulation research of the memcapacitor in the future.