基于Multisim的四阶有源低通滤波器的设计与仿真

滤波器用于对信号的频率具有选择性的电路,它的功能是使特定频率范围内的信号通过,有源滤波器被广泛用于信息处理、数据传送等电路中。在对二阶有源低通滤波器的原理进行分析的基础上,采用2个2阶低通滤波电路级联的方案,用查表法设计了基于巴特沃思逼近的4阶有源低通滤波器。在Multisim软件中使用虚拟示波器、波特图示仪等设备,对设计的滤波器的交流特性进行仿真,并对仿真结果进行了分析,其交流特性符合理论设计,具有一定的参考价值。

Design and Simulation of 4nd Source Low-passed Filter based on Multisim

Filter is the circuit which has a selective for the frequency of signals,its function is to make a specific range of frequency through.Source filter is widely used for information processing and data transmission circuit.Based on the analysis of principle of 2nd Source low-passed filter,by using the Scheme of cascading two 2nd source low-passed filter and the method of examining the table,the 4nd source low-passed filter based on Butterworth is designed.By using the oscilloscope and Bode plotter in Multisim...