电子器件2012，Vol.35Issue(5)：549-553,5.DOI:10.3969/j.issn.1005-9490.2012.05.014
通用有源滤波器设计
Design of Universal Active Filter
苗汇静 1孙桂华 2王立新1
作者信息
- 1. 山东理工大学电气与电子工程学院,山东淄博255049
- 2. 烟台连营电子科技有限公司,山东烟台264003
- 折叠
摘要
Abstract
A universal active filter is designed to solve the disadvantages of excessive components, bulk size, complex debugging, cumbersome design and bad filtering, which are all the characteristics of a conventional active filter.The function of filtering can be achieved through filter chip MAX275.The digital potentiometer is controlled by single chip microcomputer (MCU) to obtain accurate parameter values of external components which are set by keyboard and displayed by LCD.Data from tests show that the functions of low-pass and band-pass filtering of the second order,the fourth order,the sixth order and the eighth order can be achieved in the design.The universal filter improves efficiency with high cost-performance ratio and practical value.关键词
通用滤波器/专用滤波器芯片/单片机控制/数字电位器Key words
universal filter/dedicated filter chip/digital potentiometer/MCU control分类
信息技术与安全科学引用本文复制引用
苗汇静,孙桂华,王立新..通用有源滤波器设计[J].电子器件,2012,35(5):549-553,5.
