The input impedance of common mode and differential mode noise separators
2013 (English)In: 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013, 2013, 1688-1695 p.Conference paper (Refereed)
This paper discusses the Δ-networks and other circuits designed to separate the conducted electromagnetic interference (EMI) into its common mode (CM) and differential mode (DM) components. The input impedances of CM/DM separators must be 50 Ω resistive in the measurement frequency band and they must be independent of the values of the noise signals and noise source impedances. The conditions for achieving such input impedances are derived. It is shown that many of the proposed separators, including the Δ-network suggested in the CISPR 16 standard, do not fulfill the input impedance requirement. This leads to unreliable CM and DM measurements, and consequently, to EMI filter oversizing and design by trial-and-error.
Place, publisher, year, edition, pages
2013. 1688-1695 p.
, 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject Electrical Engineering; SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-139110DOI: 10.1109/ECCE.2013.6646910ISI: 000345216901139ScopusID: 2-s2.0-84891061628ISBN: 9781479903351OAI: oai:DiVA.org:kth-139110DiVA: diva2:687730
5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013; Denver, CO, United States, 15-19 September 2013
QC 201401152014-01-152014-01-072016-02-26Bibliographically approved