共集—共基组合放大器性能指标的两种分析方法  

Two Analyzing Methods of Electrical Performance Index of Common Collector-common Base Combination Amplification

作　　者：马占敖[1] 张立辉[1] 杨佳[1] 

机构地区：[1]吉林建筑工程学院电气与电子信息工程学院,长春130118

出　　处：《吉林建筑工程学院学报》2010年第6期63-65,共3页Journal of Jilin Architectural and Civil Engineering

摘　　要：共集—共基组合放大电路具有良好的宽带放大特性,既可作为缓冲级又能够提供一定的电压和电流增益.这些优异的性能和特点,使其在模拟集成电路中得到了广泛应用.本文针对共集—共基组合放大电路的结构特征,在教学实践中按多级放大电路和差分放大电路形式,探讨了在线性放大状态下其性能指标的两种分析方法,并相应阐明了其物理意义.Common collector-common base combination amplification circuit has favorable amplifying characteristic,it can be used as buffer stage and also supply certain voltage as well as current gain.These outstanding performance and characteristics make it widely used in analog integrated circuit.Based on structural characteristics of common collector-common base combination amplification circuit,this paper probes on two methods of analyzing performance index under linear amplification with the forms of multi stage amplification circuit and differential amplification circuit,and demonstrates its physical meanings.

关 键 词：组合放大电路 差分放大器 增益 输入电阻 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]