开关电容椭圆低通滤波器的设计  

The Design of the Switched-capacitor Elliptic Low-pass Filter

作　　者：吴爱丹[1] 

机构地区：[1]浙江外国语学院科学技术学院,浙江杭州310012

出　　处：《浙江外国语学院学报》2013年第4期101-104,共4页Journal of Zhejiang International Studies University

摘　　要：设计了一款应用于医疗电子行业的开关电容椭圆低通滤波器,采用开关电容滤波器与外部运算放大器结合,外加一个时钟驱动信号的方式完成构架,实现椭圆低通滤波功能.该电路具有抗工频干扰佳、通频带范围合适、滤波效果好、稳定性高等优点.This paper designs a switched-capacitor elliptic low-pass filter used in medical electronics in- dustry,using the switched-capacitor filter combined with an external operational amplifiers, and plus a clock drive signal, to achieve the elliptic low-pass filter function.The circuit has a good anti-frequency interference, appropriate pass band range, good filtering effect and stability.

关 键 词：低通 椭圆 开关电容滤波器 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]