关于“模拟电路”教学中几点问题的讨论  

Discussion on Some Problems in Teaching Analog Circuit

作　　者：余辉洋[1] 朱晓梅[1] 李义丰[1] 金晶 YU Huiyang;ZHU Xiaomei;LI Yifeng;JIN Jing(College of Computer and Information Engineering,Nanjing Tech University,Nanjing 211800,China)

机构地区：[1]南京工业大学计算机与信息工程学院,南京211800

出　　处：《电气电子教学学报》2025年第1期124-127,共4页Journal of Electrical and Electronic Education

基　　金：国家自然科学基金青年基金(62104105);南京工业大学本科课程思政示范课程建设项目(南工校教[2023] 4号)。

摘　　要：针对“模拟电路”课程中的三个知识点展开讨论,诣在加深学生对相关内容的理解。首先,引导学生从叠加定理的角度去理解放大电路的直流通路和交流通路的演化过程以及交直流输出与电路实际输出的关系。其次,提出通过构建等效电路的方法来分析带射极电阻的共射/共集电路的输入/输出电阻。最后,指出在短沟道条件下,MOS场效应管工作在可变电阻区的I-V方程也需要进行修正。Three problems in analog electronic technology course are discussed,aiming to deepen students'understanding of the relevant content.Firstly,guide students to understand the evolution process of the DC and AC circuits of amplification circuits from the perspective of the superposition theorem,as well as the relationship between the AC/DC output and the actual output of the circuit.Secondly,a method of constructing equivalent circuits is proposed to analyze the input/output resistance of a common emitter/collector circuit with emitter resistors.Finally,it is pointed out that under short channel conditions,the I-V equation of MOS field-effect transistors operating in the variable resistance region also needs to be corrected.

关 键 词：放大器 叠加定理 等效电路 短沟道效应 

分 类 号：N43[自然科学总论]