| 用Multisim分析二阶低通滤波器电路 |
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| 引用本文： | 彭延峰,刘习春,彭志华.用Multisim分析二阶低通滤波器电路[J].现代电子技术,2008,31(17). |
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| 作者姓名： | 彭延峰 刘习春 彭志华 |
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| 作者单位： | 1. 湖南师范大学,物理与信息科学学院,湖南,长沙,410081
2. 南华大学,数理学院,湖南,衡阳,421001 |
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| 基金项目： | 湖南省教育厅资助项目
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| 摘 要： | 以Multisim为平台分析了二阶低通滤波器电路。使用虚拟示波器等虚拟元件,采用交流分析方法和参数扫描分析方法仿真分析了二阶低通滤波器电路的工作特性,及各元件参数对输入输出特性的影响,并演示了Multisim中虚拟仪器及各种分析方法的使用。仿真得到了该电路在低频状态下的通带电压放大倍数AUP=2,电路的截止频率fP=148.495 2 Hz。仿真结果与理论计算相符。
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| 关 键 词： | 二阶低通滤波器电路 电子电路仿真分析 虚拟示波器 交流分析 参数扫描分析 |
Analysis of Second Order Low-pass Filter Circuit Using Multisim |
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| PENG Yanfeng,LIU Xichun,PENG Zhihua.Analysis of Second Order Low-pass Filter Circuit Using Multisim[J].Modern Electronic Technique,2008,31(17). |
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| Authors: | PENG Yanfeng LIU Xichun PENG Zhihua |
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| Affiliation: | PENG Yanfeng1,LIU Xichun1,PENG Zhihua2 |
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| Abstract: | In this paper,second order low-pass filter circuit is analyzed based on Multisim.With virtual instruments including a virtual oscilloscope,the working characteristics of second order low-pass filter circuit and the influences of all instruments on the result of output using AC analysis and parameter scanning analysis are described.Further,the virtual instruments and analysis methods in Multisim are demonstrated.Using simulation analysis,passband voltage magnification of the second order low-pass filter circuit in low frequency range AUP=2,the cutoff frequency of the circuit fP=148.495 2 Hz.The simulation results are in reasonable agreement with theoretical values. |
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| Keywords: | Multisim |
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