基于MAX262的可调增益程控滤波器设计  

Design of the Gain Adjustable Programmable Control Filter Based on MAX262

作　　者：缑新科[1] 常改苗[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《电气自动化》2012年第2期68-70,共3页Electrical Automation

摘　　要：介绍了一种可调增益程控滤波器的基本原理与实现方案,给出了具体电路及流程图。引入基于MAX262的滤波电路技术[1],以单片机为控制器来编程控制放大增益和滤波频率,同时配合键盘和显示部分完成设定和显示当前的设定,能够对带噪声的微弱信号进行放大和处理。最后给出了一个设计实例。In this paper, basic principle and implementation plan of the gain adjustable programmable control fiker is introduced. The author has given a specific circuit and flow chart, introduced the filter circuits technology based on MAX262, the controller uses single chip to control the gain and the programmable control filter. At the same time, cooperating the keyboard and the show part to fulfill the enactment. The system can amplify and process the weak signal with noise and interference. Finally, a design example has given.

关 键 词：可调增益 程控滤波器 MAX262 单片机 

分 类 号：TN713[电子电信—电路与系统]