基于OTA和CCCII的电流模式可调谐滤波器

计算机工程与应用 ›› 2013, Vol. 49 ›› Issue (7): 68-71.

基于OTA和CCCII的电流模式可调谐滤波器

周细凤1，曾荣周2

1.湖南工程学院电气信息工程学院，湖南湘潭 411101
2.湖南机电职业技术学院，长沙 410151

出版日期:2013-04-01 发布日期:2013-04-15

Electronically tunable current-mode universal filter employing CCCII and OTA

ZHOU Xifeng1, ZENG Rongzhou2

1.College of Electrical & Information Engineering, Hunan Institute of Engineering, Xiangtan, Hunan 411101, China
2.Hunan Mechanical & Electrical Polytechnic, Changsha 410151, China

Online:2013-04-01 Published:2013-04-15

摘要/Abstract

摘要： 设计了一种新颖的双二阶电流模式通用滤波器结构，该滤波器仅包含有源器件OTA、CCCII和接地电容，电路结构简单，与VLSI工艺兼容，便于集成，可实现同时低通、高通、带通、带阻、全通等滤波功能；Q和ω0可以互相不影响的独立调节。采用PSPICE软件仿真分析了所提电路的性能。

关键词: 电流控制电流传送器, 运算跨导放大器, 电可调谐, 通用滤波器

Abstract: A new electronically tunable universal Current-Mode（CM） filter structure employing two Current Controlled Conveyor（CCCIIs）, two OTAs and only grounded capacitors are presented. It’s compatible with VLSI technology since no resistance is employed in the circuit. This versatile filter can simultaneously realize five basic transfer functions from the same configuration. The parameter ω0 can be tuned by changing component manually without effect to the Q. The simulation results have been carried out by PSPICE.

Key words: Current Controlled Conveyor（CCCII）, Operational Transconductance Amplifier（OTA）, electronically tunable, universal filter

周细凤1，曾荣周2. 基于OTA和CCCII的电流模式可调谐滤波器[J]. 计算机工程与应用, 2013, 49(7): 68-71.

ZHOU Xifeng1, ZENG Rongzhou2. Electronically tunable current-mode universal filter employing CCCII and OTA[J]. Computer Engineering and Applications, 2013, 49(7): 68-71.