Just use 2 sets of  2 anti parallel  CM coils  and couple the common via
a third to ground (I suppose).

 

 

I do not know your specific application, but in general DM signals

come in paired sets of 2......

 

The only application I know where DM is over 4 wires,

is a phantom signal in phone lines.

 

Gert

 

 

Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens
ralph.mcdiar...@schneider-electric.com
Verzonden: Wednesday, June 13, 2012 7:06 PM
Aan: EMC-PSTC@LISTSERV.IEEE.ORG
Onderwerp: Re: DMRN for 4 wires (EMC)

 


A DMRN (Differential-Mode Reject Network) works well for 2-wires, but
has anyone tried for 4 wires?  I suppose a common-mode transformer with
a bandwidth up to 30MHz would do. 

Any suggestions from the RF gurus in the group?
________________________________________________________________________
_______ 

Ralph McDiarmid  |   Schneider Electric   |  Solar Business  |   CANADA
|   Regulatory Compliance Engineering 

-
----------------------------------------------------------------

This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list. To post a message to the list, send your
e-mail to <emc-p...@ieee.org>

All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site
at http://product-compliance.oc.ieee.org/ can be used for graphics (in
well-used formats), large files, etc.

Website: http://www.ieee-pses.org/
Instructions: http://listserv.ieee.org/request/user-guide.html
List rules: http://www.ieee-pses.org/listrules.html 

For help, send mail to the list administrators:
Scott Douglas <emcp...@radiusnorth.net>
Mike Cantwell <mcantw...@ieee.org> 

For policy questions, send mail to:
Jim Bacher <j.bac...@ieee.org>
David Heald <dhe...@gmail.com> 


-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 
<emc-p...@ieee.org>

All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

Website:  http://www.ieee-pses.org/
Instructions:  http://listserv.ieee.org/request/user-guide.html
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas <emcp...@radiusnorth.net>
Mike Cantwell <mcantw...@ieee.org>

For policy questions, send mail to:
Jim Bacher:  <j.bac...@ieee.org>
David Heald: <dhe...@gmail.com>

Reply via email to