基于电流反馈运算放大器的R-L和C-D阻抗的实现和应用  

Realization of R-L and C-D Impedances Using a Current-feedback Amplifier and Its Application

作　　者：卢明[1] 尹风雨[1] 

机构地区：[1]湖南科技大学信息学院,湖南湘潭411201

出　　处：《现代电子技术》2007年第14期3-4,17,共3页Modern Electronics Technique

摘　　要：在集成电路的设计中,电感的集成是很困难的,因此,用有源电路来模拟电感很有必要。目前通用的做法是用电流传送器等有源器件实现的RL/CD阻抗电路,但基于电流反馈运算放大器实现的RL/CD阻抗电路却很少。结合相关的研究进展,用电流反馈运算放大器和一些无源元件实现了R-L(电阻-电感)和C-D(电容-频变负阻)系列阻抗电路。并且用该电路能实现高通?低通和高通滤波器功能。The integration of inductance is very difficult in the designing of integrated circuit. Therefore, it is necessary to imitate the inductance by using some circuit with power. The general way is using the electric current transmission machine to realize the RL/CD impedances electric circuit. However, the RL/CD impedances electric circuit which is based on the current- feedback amplifier are few. According to the related researching, by using the current - feedback amplifier and some passive component can carry out the RL/CD impedances electric circuits,and then realize the function of lowpass, bandpass and high- pass filters.

关 键 词：低通滤波器 带通滤波器 高通滤波器 电流反馈运算放大器 

分 类 号：TN722[电子电信—电路与系统]