Title :
Reduction of power converter EMI emission using soft-switching technique
Author :
Chung, H. ; Hui, S.Y.R. ; Tse, K.K.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
fDate :
8/1/1998 12:00:00 AM
Abstract :
Measurements of conducted and radiated electromagnetic interference (EMI) emission from hard-switched and soft-switched buck, boost, and flyback converters of similar power ratings are presented. Results indicate that EMI emission can be substantially reduced by using a soft-switching technique in power converters. Thus, the soft-switching technique provides a practical and useful solution to reduce EMI emission from switched-mode power circuits. A comparison of EMI emission on the three classes of converters is also included. The flyback converter is found to be the least EMC friendly among the converters tested
Keywords :
electromagnetic compatibility; electromagnetic interference; interference suppression; power convertors; switched mode power supplies; EMC; EMI emission reduction; EMI measurement; boost converter; buck converter; conducted electromagnetic interference; flyback converter; hard-switched power converter; radiated electromagnetic interference; soft-switched power converter; Acoustic propagation; Admittance; Antennas and propagation; Apertures; Electromagnetic compatibility; Electromagnetic compatibility and interference; Electromagnetic interference; Electromagnetic propagation; Power electronics; Switching circuits;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
