基于EWB高阶有源滤波器设计研究

Research on High Order Active Filter Design Based on EWB Software

介绍了EWB(Electronic Work Bench)软件的特点,给出了高阶有源滤波器设计的一般思路,用EWB软件设计出五阶巴特沃斯低通滤波器,其电路简单明了,参数容易确定,且电路调试方便。并且通过实际电路实验证明设计方法合理,设计出的滤波器满足技术指标。该有源滤波器设计方法对信号处理,通信及检测技术方面有实用价值。

This paper introduces the characteristics of EWB （Electronic Work Bench） software and gives conception of design high order Butterworth analogue filter based on EWB. It takes five order filter for example, which the circuit is very simple, the parameters can be easily determined, and conveniently tested. Finally, the design method has been proved by real circuit which satisfies the filter technical quota and the design method has actual value in the field of signal processing communication and measurement.