Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

The study on noise reduction using the modulation of switching frequency

스위칭 주파수 변조를 통한 잡음 감소에 관한 연구

  • Park, Seok-Ha (Dept. of Electrical Engineering, Chungnam National Univ.) ;
  • Kim, Jong-Bum (Dept. of Electrical Engineering, Chungnam National Univ.) ;
  • Ma, Keon-Soo (Dept. of Electrical Engineering, Chungnam National Univ.) ;
  • Lee, Jun-Koo (Dept. of Electrical Engineering, Chungnam National Univ.) ;
  • Kim, Jin-Sung (Dept. of Electrical Engineering, Chungnam National Univ.) ;
  • Kim, Yang-Mo (Dept. of Electrical Engineering, Chungnam National Univ.)
  • 박석하 (충남대학교 전기공학과) ;
  • 김종범 (충남대학교 전기공학과) ;
  • 마근수 (충남대학교 전기공학과) ;
  • 이준구 (충남대학교 전기공학과) ;
  • 김진성 (충남대학교 전기공학과) ;
  • 김양모 (충남대학교 전기공학과)
  • Published : 1998.07.20
Download PDF
⟨ Previous Next ⟩

Abstract

This paper analyzes the sources of EMI noise, and Presents the noise reduction method using the modulation of switching frequency. Modulating the switching frequency makes the noise of side bands by shattering emission spectrum, and then can reduce the size of EMI filter at input line of power supply.

Keywords