Secondly, a current for it is developed, which consists of a bridge zero modulation current, signal amplifier and analogfilter.
然后为其设计了信号放大、滤波和调零电路；
2
The analogfilter is the important unit of modern measurement and control system, but the traditional method has a very tedious design process.
模拟滤波器是现代测控系统中的重要部件，传统设计方法的设计过程繁琐。
3
The problem of switching noise is analyzed in detail and analogfilter between APF and power system is designed according to the equivalent circuit of compensation part.