基于MDDCC的通用型电流模式滤波器  

Modified current-mode DDCC-based universal filter

作　　者：王春悦[1] 申铉国[2] 韩庆全[1] 

机构地区：[1]吉林大学通信工程学院,吉林长春130025 [2]吉林大学物理学院,吉林长春130025

出　　处：《吉林大学学报（信息科学版）》2004年第5期449-452,共4页Journal of Jilin University（Information Science Edition）

基　　金：吉林大学青年教师基金资助项目(412080000810)

摘　　要：为实现比第2电流传送器(CCII:CurrentConveyorII)更具通用性、运能力更强的模块电路,提出了一种结构简单性能优良的改进型多输出差动差分电流传送器(MDDCC:ModifiedDifferentialDifferenceCurrentConveyor),并给出了由该电流传送器实现的通用型电流模式滤波器。该滤波器由3个MDDCC和7个无源元件构成,可实现二阶低通、高通、带通、带阻和全通滤波的功能;且可以多端输出,电路中电阻电容全部接地,适于全集成。中心频率和品质因数的无源灵敏度低,实现了面向实际电路完成MOS管级的PSPICE仿真,结果表明,所提出的电路方案是可行的。To realize the block circuit that is more universal and more calculating power than the second generation current conveyor(CCII),the modified differential difference current conveyor(MDDCC)and a current-mode novel biquad based on a modified DDCC with simple structure and excellent performance is proposed .The circuit is composed of three MDDCCs and seven passive components and can be used to realize second-order lowpass,highpass,bandpass,bandstop and allpass filter functions. Its center frequency and quality factor has very low passive sensitivity. The PSPICE simulation at the MOS transistor lever is carried out and results show that the proposed circuit is feasible.

关 键 词：连续时间滤波器 改进型差动差分电流传送器 电流模式 二阶节 

分 类 号：TN713[电子电信—电路与系统]