反馈判断及负反馈性能仿真探讨

Research on the Judgment of Feedback and the Perform Simulation of Negative Feedback

本文就反馈类型判断和应用Multisim对负反馈放大器的主要性能进行仿真探讨。首先作者根据反馈的特点提出了反馈极性和负反馈类型的确定方法。方法体现了简便易行和便于掌握的特点;其次对负反馈的主要性能进行了仿真探讨,结果展示了负反馈的引入是如何影响放大器的性能的,可以将抽象的理论和教条变为感性和直观。对掌握和应用负反馈放大器大有裨益。

This paper is about the research on the judgment of feedback and the perform simulation of negative feedback. Firstly the author proposed the methods to judge the polarity of the feedback and types of the negative feedback based on the feedback characteristic. The judge method to feedback shows the advantage which is easy to learn and grasp. Secondly, the major characteristic of the negative feedback is simulated by using Muhisim software. The results from the simulation show that the performance of amplify is affected by the means of negative back and also converting the abstract theory to be easily understood which will benefit to the study of feedback content.