阻容耦合共射放大电路的仿真设计  

Simulation design of RC coupled common-emitter amplifier circuit

作　　者：张辉波[1] 王平[1] ZHANG Huibo;WANG Ping(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]西南交通大学信息科学与技术学院,四川成都611756

出　　处：《应用科技》2021年第2期19-22,共4页Applied Science and Technology

基　　金：西南交通大学本科教学研究和改革项目(20201012-04).

摘　　要：为了让学生理解单管共射放大电路的设计过程,进而掌握关于放大电路的基础知识,建立工程性思维方式,采用理论分析和软件Multisim结合的方法,对给定性能指标的单管共射放大电路进行设计。通过理论分析和仿真计算,首先确定满足设计要求的电路元器件参数,在此基础上通过小信号等效模型对该电路的动态性能指标进行估算。对所设计的电路进行仿真测试,得到的结果与理论计算值基本一致。仿真设计与理论知识的紧密结合可帮助学生提高其研究水平及解决问题的能力。In order to make students understand the design process of single-transistor common-emitter amplifier,which can help them to master the fundamental knowledge about amplification and establish engineering thinking mode,the circuit with given performance is designed by combining theoretical analysis and calculation of Multisim software.The required components’parameters are firstly obtained through theoretical analysis and simulation calculating,and dynamic performance index is evaluated on the basis of the small-signal model.The simulation results of the designed circuit agree well with the theoretical analysis.The integration of simulation design and theoretical knowledge could help to increase students’research level and develop their ability to solve problems.

关 键 词：MULTISIM软件 模拟电子技术 共射放大电路 仿真 晶体管 静态工作点 小信号模型 失真 

分 类 号：TN710.2[电子电信—电路与系统]