Design of a Broadband EMI filter to Suppress the Noise from the Power Supply

전원부 잡음제거용 광대역 EMI filter의 설계

  • 신은철 (인천대학교 정보통신공학과) ;
  • 강승택 (인천대학교 정보통신공학과) ;
  • 장건호 (인천대학교 정보통신공학과) ;
  • 박창림 (심플렉스 테크놀로지)
  • Published : 2009.07.14

Abstract

We present the design of an EMI filter to mitigate the electrical noise from the power supply over a broadband of a few tens of KHz to 18GHz. Admitting that our approach is not apart from the standard technology of EMI filter, it is worth checking out how we can implement the filter that meets the challenging spec. on band of operation. The function of the EMI filter is well-depicted by its performance on the CE(Conducted Emission) and RE(Radiated Emission) suppression through tests which convince us of its application to power supplies of land, water and flying vehicles.

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