有源带通滤波器的设计方法  

Design Method of Active Band Pass Filter

作　　者：许林冲 XU Linchong(Sungrow Power Supply Co.,Ltd.,Hefei 230088,China)

机构地区：[1]阳光电源股份有限公司,安徽合肥230088

出　　处：《通信电源技术》2021年第23期56-58,共3页Telecom Power Technology

摘　　要：模拟信号滤波器作为模拟电路中的重要组成,通常用于降低系统电气噪声对模拟信号采样的影响。在通信中的信号处理环节通常会引入一个模拟带通滤波器,用于滤除带外噪声。以PLC通信接收端的带通滤波器为例,介绍了无限增益多路反馈型有源带通滤波器的设计方法和流程,并分析了该设计在无源器件容差影响下的性能。As an important part of analog circuit,analog signal filter is almost everywhere.It is usually used to reduce the impact of system noise on analog signal sampling.In the signal processing of communication,an analog Band Pass Filter(BPF)is usually introduced to filter out the noise which is out of passband.Taking the bandpass filter at the receiving end of PLC communication as an example,this paper introduces the design method and process of multiple feedback BPFi,and analyzes the performance of the design under the influence of passive component tolerance.

关 键 词：有源滤波器 传递函数 无限增益多路反馈型拓扑 

分 类 号：TN7[电子电信—电路与系统]