单级交流放大器实验中若干问题的教学探讨  

Discussion on some problems in single-stage AC amplifier experiment

作　　者：王晴[1] 汪雨冰[1] 于永江[1] 杨罕[1] WANG Qing;WANG Yu-bing;YU Yong-jiang;YANG Han(College of Electronic Science and Engineering, Jilin University, Changchun 130012, China)

机构地区：[1]吉林大学电子科学与工程学院,吉林长春130012

出　　处：《实验室科学》2019年第2期38-40,43,共4页Laboratory Science

基　　金：吉林省高等教育教学改革研究重点课题(项目编号:451170401022)

摘　　要：单级交流放大器实验是模拟电子技术实验中的首个实验操作项目,是射极跟随器、两级放大器和负反馈放大器等后续相关实验的实践基础,是实践教学的重点内容。为了使学生能够深入理解实验原理,掌握实验操作方法,获得准确的实验数据,顺利完成实验内容,分析了单级交流放大器实验中学生经常出现的实验问题和产生的不良结果,并提出了有效的解决方案和改进措施。通过问题的剖析和解决,极大地降低了学生实验操作和结果的错误率,提高了实验效率,提升了学生的实践操作能力,改善了实验教学效果。The single-stage AC amplifier experiment is the first experimental operation item in the analog electronic technology experiments. It is the practical basis of follow-up experiments such as emitter follower, two-stage amplifier and negative feedback amplifier, and is the key content of practical teaching. In order to enable students to deeply understand the experimental principle, master the experimental operation method, obtain accurate experimental datum, and successfully complete the experimental contents, the paper analyzes the experimental problems and the bad results that students often appear in the single-stage AC amplifier experiment, and proposes effective solutions and improvement measures. Through the analysis and resolution of the problems, the error rate of the students experimental operations and results is greatly reduced, the experiment efficiency is improved, the students practical operation ability is improved, and the experimental teaching effect is improved.

关 键 词：单级交流放大器 静态工作点 电压放大倍数 输入电阻 输出电阻 

分 类 号：TN72[电子电信—电路与系统] G642[文化科学—高等教育学]