基于多输出四端浮地零器的电流模式多功能滤波器  

Current-mode Multifunction Filter Based on Multi-output FTFN

作　　者：谢平阳[1] 曾文海[1] 安群香[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《仪表技术》2007年第6期36-37,共2页Instrumentation Technology

摘　　要：提出一种由多输出四端浮地零器(Four Terminal Float Nullor,简称FTFN)实现电流模式多功能双二次滤波器。该滤波器由三个multi-output FTFN和五个无源元件构成,可以实现二阶低通,高通,带通,带阻和全通滤波功能,电路中电阻电容全部接地,适于全集成。能独立调节中心频率和品质因素,灵敏度较低。A current-mode multifunction biquardratic filter based on multi-output four terminal float nullor （FTFN） is proposed. The circuit is composed of three multi-output FTFNs and five passive components, it can be used to realize second order lowpass, highpass, bandpass, bandstop and allpass filtering functions. The RC elements are all grounded, being integrated conveniently. Orthogonal control with the natural angular frequencyω0 and the quality factor Q has very low passive sensitivity.

关 键 词：多输出四端浮地零器 电流模式 多功能滤波器 

分 类 号：TM930[电气工程—电力电子与电力传动]