基于MAX267带通滤波器的设计

利用MAX267滤波芯片滤掉半主动悬挂系统采集信号中的干扰噪声和车辆过曲线时的离心加速度.介绍MAX267滤波器芯片的使用方法,说明如何确定芯片F与Q系列引脚值.在理论计算的基础上,利用将滤波芯片级联的方法设计出中心频率较小,带宽较窄的8阶契比雪夫带通滤波器.实验结果证明该滤波器的滤波效果是可以达到设计要求的.

Design of band pass filter based on MAX267

Filter chip MAX267 was used in order to filter out the interference noise and centrifugal acceleration from the collected signals of the Semi-active Suspension System.The using method for the MAX267 filter chip was described.And how to determine the value of the F and Q was explained.Based on theoretical calculation chebyshev band pass filter was designed used the method of chip cascade.The characteristic of the band pass filter was that the center frequency was smaller and the bandwidth was narrower.What’s more,the test had verified that the filter could meet the design demand.