净输入量在“模拟电子技术”课程中的作用  

The Function of Net Input Signal in Analog Electronic Technology Teaching

作　　者：王艳荣[1] 房建东[1] 褚徳欣[1] 

机构地区：[1]内蒙古工业大学信息工程学院,内蒙古呼和浩特010051

出　　处：《电气电子教学学报》2013年第2期76-77,103,共3页Journal of Electrical and Electronic Education

摘　　要：放大与反馈是"模拟电子技术"课程教学中两个非常重要的基本概念,但学生在初学阶段却难以理解和掌握。在放大电路中,净输入量的物理意义不仅决定着放大电路的基本组态,同时也影响着放大电路引入反馈的极性和组态。本文通过研究分析净输入量和基本放大、负反馈之间的关系,基于净输入量建立起放大和反馈的关联,从而有效解决了"模拟电子技术"课程教学中的一个难点问题。Amplification and feedback are two very important basic concepts in the Analog Electronic Technology teaching,but it is difficult for students to understand and master in the beginner stage.In the amplifier circuit,the physical significance of the net input not only determines the basic configuration of the amplifier circuit,but also affects the polarity and configuration of the feedback amplifier circuit.By the research and analysis of relationship among net input,basic amplification and the negative feedback,we establish the association between amplification and feedback,in order to effectively solve a difficult problem in the Analog Electronic Technology teaching.

关 键 词：净输入量 基本放大电路 负反馈 

分 类 号：G434[文化科学—教育学]