V型人工电源网络寄生效应MATLAB仿真研究

Research of Parasitics on V-type Artificial Mains Network by MATLAB Simulation

运用MATLAB仿真软件分析了分立元件各寄生参数对分压系数、隔离度、串扰及阻抗的影响。通过分析接地和金属板的两种基本串扰形式,建立了人工电源网络(AMN)相应的等效电路模型,并用MATLAB仿真软件分析了两种模型下的寄生参数对AMN隔离度、阻抗的影响。结果表明:寄生参数及其耦合关系对AMN测量有较大影响。

The voltage division factor,isolation,crosstalk and impedance of artificial mains network（AMN） are analyzed by employing MATLAB simulation.The equivalent circuit of AMN is proposed based on two basic crosstalk models which are grounding and the metal plate.Furthermore,according to the two models,the isolation and impedance of AMN are also investigated by MATLAB.The results show that the test using AMN is seriously affected by the parasitic parameters and their coupling status between AMN and ground/metal plate.