摘 要：采用EDA仿真软件Multisim10 作为先进的教学手段。本文简要介绍仿真软件Multisim10 的主要特点，以及利用其强大的虚拟仪表和仿真分析功能分析负反馈对放大电路的影响。通过仿真实验课直观地得出结果，力求将仿真实验融入电子技术课程教学的各个环节，使理论与实践得意密切结合，提高教学质量，提高学生实验兴趣。
关键词：Multisim10 ; 负反馈 ; 仿真分析 ; 放大电路 ; 放大倍数
Abstract：This article adopts Electronic Design Automation(EDA) software Multisim10 as an advanced teaching means.This article introduces the main characteristic of Multisim10 briefly,and using its fictitious instrument and strong analysis function to circuit has reflected negative feedback to the influence of amplification circuit intuitively. It can draw the ocularly through the experiment,and can incorporate it each link of electron technological course teaching. It not only makes the theory and practice be combined closely but also improves teaching quality and student's experiment interests.
Keywords:Multism10;negativefeedback;emulation analysis ;amplification circuit ;magnification
由仿真实验可以看出负反馈对放大电路的性能有着广泛的影响。引入负反馈可稳定放大倍数，展宽通频带、减少非线性失真、增大输入电阻和减小输出电阻。本文课题提出了采用基于Multisim10仿真实验研究的方案，可以通过计算机仿真方式直观易懂地表现出来。实施软硬结合、虚实结合，模拟逼真的实验环境，进行电压串联负反馈放大电路的实验研究，收到了很好的效果。
