基于VisSim的快速蒙特卡罗分析方法的实现

Realization of fast monte carlo analysis based on VisSim

由于制造工艺和实际工作环境的影响,实际电子线路中的元器件及输入参数与其标称值之间总是存在着随机误差。在设计高精度的电子线路时,其容差分析就显得非常必要。本文介绍了电子线路容差分析的基本原理。VisSim作为一种功能强大的控制系统仿真软件,其自身并不支持蒙特卡罗仿真眼1演,本文提出了基于VisSim利用动态链接库的技术实现电子线路的快速蒙特卡罗分析方法。通过具体电子线路的分析,结果证明了该方法的可行性。

With the influence of manufacture technology and practical working environment,there are random errors between the nominal value and the component or input parameters in electronic circuits.So tolerance analysis which is used to calculate the influence of the errors is very necessary in design high precise electronic circuits. In this paper,the theory of tolerance analysis for electronic circuits is introduced.VisSim is very powerful for control system simulation,but the software doesn't support monte carlo analysis itself.We find solutions by using DLL technique based on VisSim,which can realize fast monte carlo analysis for electronic circuits. Through a concrete example, we can draw a conclusion that this approach is feasible.