DocumentCode :
2864060
Title :
Common mode EMI noise of AC-DC converters for low power applications
Author :
Kong, Pengju ; Jiang, Yan ; Lee, Fred C.
Author_Institution :
Center for Power Electron. Syst., Virginia Tech Blacksburg, Blacksburg, VA, USA
fYear :
2011
fDate :
6-11 March 2011
Firstpage :
78
Lastpage :
82
Abstract :
AC-DC converters for low power applications have their unique EMI characteristics compared to the converter for other applications. It has very high DM noise due to the DCM or CRM operation and results in a relatively high transformed CM noise caused by the unbalance of the noise propagation paths. This paper summarized the important unbalanced paths and proposed methods to limit the CM noise caused by these unbalances. They can be the guidelines for the converter and filter design process for achieving better EMI performance and smaller filter size of the converter at the very early design stage.
Keywords :
AC-DC power convertors; electromagnetic interference; AC-DC converters; CRM operation; DCM operation; common mode electromagnetic interference noise; critical current mode; discontinuous current mode; noise propagation paths; Capacitance; Capacitors; Converters; Delta modulation; Electromagnetic interference; Integrated circuit modeling; Noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE
Conference_Location :
Fort Worth, TX
ISSN :
1048-2334
Print_ISBN :
978-1-4244-8084-5
Type :
conf
DOI :
10.1109/APEC.2011.5744579
Filename :
5744579
Link To Document :
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