Research on Integrated Technology of RC Active Filter Optimization

Filtering technology has a widely application in the fields of communication and measurement. It plays an important role in improving the electronic system´s performance. However, due to the complexity of higher-order filter circuit, the difficult of component parameters choosing and circuit debugging, filter circuit design become one of the difficulties of electronic systems designing, which plagued designers. In this paper, we discussed the theory of second-order Butterworth RC active filter and the fourth-order elliptic low-pass filter firstly, and then proposed their integrated optimization techniques. The simulated and experiment verified the effectiveness of the method.