一种新颖的基于CCⅡ+/-电压模式双二阶滤波器

A Voltage-mode Biquadratic Filter Employing Current Conveyors

提出了一种新的用电流传送器设计的电压模式双二阶有源滤波器结构 .无须改变输入点位置和有源器件 ,仅改变少数无源器件参数便可实现低通、高通、带通、带阻、全通等各种滤波功能 .这些滤波器具有低的元件参数灵敏度和高输入阻抗 ,且各滤波电路的零、极点参数均可独立调节 .

A novel voltage-mode multifunction biquadratic filter structure using Current Conveyors (CCs) is presented. Five filter functions, i.e. lowpass, highpass, bandpass, bandstop, allpass,etc. can be obtained at the output terminal just by changing a few parameters of the passive components. All these filters have low passive sensitivities and high input impedance and all their zero parameters and pole parameters are adjustable independently. Computer simulation demonstrates its feasibility.