一种新颖的基于电流传送器的多功能滤波器

A Novel MultiFunction Filter Based on Current Conveyors

提出了一种采用新的电流传送器（ＣＣⅡ）积木块构成的电流模式单输入多功能滤波器电路，它仅由４个ＣＣ器件、４个接地电阻和２个接地电容构成，选择电路三个输出端中的一个或它们的组合，即可实现五种基本的二阶滤波功能，给出了部分电路的ＰＳＰＩＣＥ仿真结果。

A currentmode filter with one input and multiple outputs is presented in the paper,in which a new current conveyor(CCⅡ)is used as building blockIt includes only 4 current conveyors,4 grounded resistors and 2 grounded capacitorsIt is possible to realize 5 basic functions of biquadratic filtering by selecting one of the three outputs or their proper combinationsResults from PSPICE simulation validates the theory analysisIt is demonstrated that the proposed circuit has not only low passive sensitivity,but also a simple structure