新型多功能开关电流双二次滤波器  

A NEW MULTIFUNCTION SWITCHED-CURRENT BIQUADRATIC FILTER

作　　者：孟相如[1] 邱关源[2] 

机构地区：[1]电子科技大学光电子系,成都610054 [2]西安交通大学电气学院,西安710049

出　　处：《电子科学学刊》1997年第4期570-573,共4页

基　　金：国家自然科学基金

摘　　要：本文提出了一种具有较低灵敏度和正反两相输出的开关电流(SI)改进型通用积木块(MUB),可以实现抽样数据信号处理的各种基本运算.据此,以开关电容电路为原型,采用信号流图方法生成了一种新型SI高Q双二次滤波器,可获得低通、高通、带通和带阻等多种滤波功能。A switched-current(SI) modified universal building-block(MUB) is proposed with low sensitivities as well as positive and negative outputs. Various basic operations of sampled-data signal processing can be performed by the MUB. Based on this building-block, a new SI high-Q biquadratic filter is generated from the switched-capacitor prototype by the means of signal flow graphes, which can obtain low-pass, high-pass, bandpass and band-reject filtering functions.

关 键 词：开关电流 有源滤波器 设计 滤波器 

分 类 号：TN713.802[电子电信—电路与系统]