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Component design considerations for active AC EMI-filters

: Schinkel, M.; Guttowski, S.; John, W.; Reichl, H.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE 36th Power Electronic Specialists Conference, PESC 2005. Vol.2 : Recife, Brazil, 12 - 16 June 2005
Piscataway, NJ: IEEE, 2005
ISBN: 0-7803-9033-4
Power Electronic Specialists Conference (PESC) <36, 2005, Recife>
Conference Paper
Fraunhofer IZM ()

Active EMI-filters for attenuating radio frequency interferences (RFI) have been discussed for years. Several research projects have shown the potential of active EMI-filters to reduce cost, volume and weight while ncreasing simultaneously the filter performance. However, the application of active EMI-filters has been limited to a few very specific applications. In this paper design considerations for the passive components of the sensing device are determined in order to enlarge the application area of active EMI-filters. A detailed feasibility study of possible sensing devices is presented and the results are confirmed by measurements.