静态工作点对共射放大电路上限截止频率的影响  

The Influence of Quiescent Operating Point to Upper Cut-off Frequency of Common Emitter Amplifier Circuit

作　　者：李勇[1] 吕宏璋 章毛连[1] 张永锋[1] 韩新风[1] 

机构地区：[1]安徽科技学院,安徽凤阳233100 [2]凤阳县武店中学,安徽凤阳233100

出　　处：《宁波工程学院学报》2013年第4期38-42,共5页Journal of Ningbo University of Technology

基　　金：安徽科技学院教学研究项目(项目编号:X2012065);安徽科技学院校级应用型共享课程(项目编号:Xj201334)联合资助

摘　　要：本文讨论了在高频段静态工作点对共射放大电路的上限截止频率的影响,并通过仿真实验进行了检验,结果表明静态工作点的合理设置可以改善放大电路的高频特性,展宽频带,但对中频电压放大倍数也会产生影响。This paper discusses the influence of quiescent operating point to upper cut-off frequency of the common emitter amplifier circuit at high frequency, and the result is tested by simulation experiment. The experimental results show that a reasonable quiescent operating point can improve the frequency characteristic of amplifier circuit and wide the band. But it can affect the voltage- gain of centric frequency.

关 键 词：静态工作点 共射放大电路 上限截止频率 中频电压放大倍数 

分 类 号：TN710.2[电子电信—电路与系统]