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.
出处
《仪表技术》
2007年第6期36-37,共2页
Instrumentation Technology
关键词
多输出四端浮地零器
电流模式
多功能滤波器
multi-output four-terminal float nullor
current-mode circuit
multi-function filter
