共射放大电路的设计  

Design of Common Emitter Amplifier

作　　者：胡剑琦 王丽丹[1] 吴援明[1] 

机构地区：[1]电子科技大学光电信息学院,成都611731

出　　处：《实验科学与技术》2015年第1期216-219,共4页Experiment Science and Technology

摘　　要：共射放大电路是一种基本的放大电路,在电子技术中有着广泛的应用。文中按照设计要求进行了共射放大电路的设计,给出了放大电路详细的理论分析过程,并用Multisim进行仿真分析,通过仿真分析提出了设计方案中的不足。探究给出了采用增加射极跟随器和改变直流偏置电压的改进方案,对改进方案进行了进一步的仿真分析。This paper demonstrates the general process of designing a single stage Common Emitter Amplifier under certain condition.The paper mainly analyzes the selection of resistors based on β- parameter model considering both DC and AC circuits. Besides,amendments and revisions are introduced to improve the properties of the circuit to meet the standard illustrated below. Specifically,adding emitter- follower and changing of the DC supply is basic concern to maximize the voltage gain. The effect of the circuit will be measured and presented by using Multisim simulation.

关 键 词：双极型晶体管 共射放大电路 电压增益 射极跟随器 MULTISIM仿真 

分 类 号：TN710.2[电子电信—电路与系统]