基于OrCAD／PSPICE的二阶系统阶跃响应仿真实验

传统实物实验由于受实验条件的限制，实验项目往往开设数量有限，实验内容更新缓慢，不利于学生设计能力和创新能力的培养。仿真实验是以软件为实验平台，具有扩展性，与实物实验相比，既能节省投资，又能根据课程内容需要随时增加实验内容，提高实验教学效果。文章简要介绍了OrCAD／PSPICE实现电子电路仿真的步骤，并详细阐述了利用OrCAD／PSPICE对二阶系统阶跃响应进行仿真分析的方法，为电子电路仿真实验的设计和开发提供了新的平台。

Simulation Experiment of Second Order System Step Response Based on OrCAD/PSPICE

Traditional experiments based on real objects are limited in many aspects.Insufficient content and update go against the cultivation of students' abilities in design and creation.Simulation experiments take software as the platform,whose expansibility allows less investment and more content.This article gives a brief introduction to the procedures of circuit simulation based on OrCAD/PSPICE,and expounds on the method of conducting a simulation analysis on the second order system step response by using OrCAD/PSPICE.It provides a new platform for the design and developing of electronic circuit simulation experiment.