DocumentCode
132787
Title
Novel techniques to suppress the common mode EMI noise in class II off-line SMPS applications
Author
Chao Sun ; Ming Xu
Author_Institution
Generation Technol. Center, FSP-Powerland Technol. Inc., Nanjing, China
fYear
2014
fDate
16-20 March 2014
Firstpage
1882
Lastpage
1887
Abstract
A novel Y-cap. connection structure for Class II offline SMPS applications is proposed to suppress the common mode (CM) noise. With proposed concept, the size of the CM choke can be greatly reduced while satisfying the EMC standard. Furthermore, the inner shielding layer inside power transformer which is normally a must in product design to comply with the EMC standards can be eliminated for higher conversion efficiency and easier manufacturing. Successful implementation of this concept leads to the smallest 65W adaptor in the world.
Keywords
electromagnetic compatibility; electromagnetic interference; interference suppression; switched mode power supplies; CM choke; EMC standards; Y-cap connection structure; class II offline SMPS applications; common mode EMI noise suppression; conversion efficiency; power 65 W; power transformer; product design; shielding layer; Attenuation; Capacitors; Electromagnetic interference; Inductors; Noise; Power transformers; Standards;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location
Fort Worth, TX
Type
conf
DOI
10.1109/APEC.2014.6803562
Filename
6803562
Link To Document