능동 EMI 필터의 향상된 공통모드잡음 검출회로에 관한 연구

Abstract

This paper describes an new topology of the common mode noise detection circuit for improving the noise attenuation performance of the active EMI filter. The proposed Common Mode Detection Circuit is in form of an adder and attenuates a lot of differential mode noise. Therefore, In this paper the proposed common mode noise detection circuit indicates a much higher detection accuracy than the conventional Common Mode Detection Circuit. And MATLAB and OrCAD simulation were used for verification of proposed CM sensing circuit. Finally, the proposed sensing circuit was verified by experimental results.