基于Multisim10的扩音电路设计与仿真  

Design and simulation of the amplification circuit based on Multisim10

作　　者：徐鹏[1] 毛攀峰[1] 

机构地区：[1]浙江国际海运职业技术学院船舶工程学院,浙江舟山316021

出　　处：《微型机与应用》2017年第20期41-44,共4页Microcomputer & Its Applications

基　　金：舟山市科技计划项目(2016C33030);浙江国际海运职业技术学院2017访问工程师校企项目

摘　　要：针对电子线路设计过程中受到元器件、测量仪器等条件限制的问题,介绍了Multisim10软件在电子设计方面的应用,分析了扩音电路工作原理,完成电路的分析、设计和调试。扩音放大电路主要采用分立元器件三极管和达林顿管进行设计,再通过Multisim10软件对电路各功能及整个系统进行了分析仿真,得到电路相关技术参数。仿真实验结果显示:采用Multisim10仿真得到的放大倍数与理论计算值的误差约为2%,同时得到此电路信号在频率为414 Hz^1.1 MHz时放大倍数均为47.8 d B。因此Multisim10软件应用于电子电路设计切实可行,不但节省了实际焊接、测试和调试的时间,也大大缩短了设计研发周期。Due to the restriction of components,measuring instruments and other conditions in electronic circuit design,the analysis,design and commissioning of circuit can be achieved by applying Multisim10 to the electronic design. This paper analyzes the working principles of PA circuit,using discrete components of transistor and Darlington PA amplifying as the core to build the main part of the amplifying circuit. As a result,the related technical parameters can be obtained on the basis of simulating the entire system by Multisim10. Simulation results show that the error between circuit gain simulated by Multisim10 and theoretical calculation is about 2%,and at the same time the circuit signal can get the magnification of 47. 8 d B between 414 Hz and 1. 1 MHz. Therefore,the application of Multisim10 to electronic circuit design is feasible,which not only can save the actual welding,testing and debugging time,but also greatly reduce the design and development cycle.

关 键 词：三极管 放大器 MULTISIM10 仿真 

分 类 号：TP702[自动化与计算机技术—检测技术与自动化装置]