基于CC多输入单输出电流模式滤波器  

Current Mode Filters with Multiple Inputs and One Output Based on CCⅡ

作　　者：王春华[1] 

机构地区：[1]湖南大学计算机与通信学院,长沙410082

出　　处：《固体电子学研究与进展》2005年第4期536-539,共4页Research & Progress of SSE

基　　金：湖南省自然科学基金项目(04JJ3039)

摘　　要：为了实现结构简单、便于集成的三输入单输出电流模式滤波器,提出了三输入单输出电流模式滤波器的信号流图。用CC(第二代电流传输器)及多端输出的电流镜实现了该信号流图,得到一个由CC及电流镜共同构成的电流模式滤波器。该滤波器由2个CC、1个三端输出的电流镜及4个RC元件构成,能方便地实现5种滤波器输出。该滤波器可用于通信、电子测量与仪器仪表中的信号处理。硬件实验结果表明提出的电路是正确的。In order to realize a three-input single-output current-mode filter which has simple structure and is convenient to be integrated, the paper presents a signal flow graph of current mode filter with three inputs and one output. The signal flow graph is realized by CC Ⅱs and current mirrors, and a current mode filter circuit is obtained. The filter circuit is constructed by two CC Ⅱ s, four RC components and one current mirror with three outputs. It can realize five kinds of second order filtering outputs very conveniently. The filter can be applied to signal processes of communication and electronic measure and instrument. Experiment results validate the circuits.

关 键 词：电流传输器 电流镜 电流模式滤波器 

分 类 号：TN713.4[电子电信—电路与系统]