Hi Muriel, I have the same book by Clayton Paul as it was used as a textbook for a graduate course in EMC at SUNY Binghamton.
After SUNY Binghamton, I started was working as a design engineer. That was the year before the EMC directive became mandatory. My boss saw Mr Paul's book in my office... and well...next thing you know, I'm suddenly the EMC guy with "Captain Zap" for a nickname... Enough about my sad fall from grace :-) One of the first things I did was to build one of these devices. I never have seen one for sale. Honestly, until your email, I thought I was the only person who actually tried to make one. (other than Mr. Paul himself) I don't use it too much any more. We have gotten fairly good at guessing whether the emission is differential mode or common mode. If we guess correctly, it's quicker to just put in the capacitor or choke and give it a try. It's been a while since I built it, so my memory is fuzzy. But I may be able to help if you have a question or two. Chris Maxwell | Design Engineer - Optical Division email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024 NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA web www.nettest.com | tel +1 315 797 4449 | > -----Original Message----- > From: Muriel Bittencourt de Liz [SMTP:mur...@eel.ufsc.br] > Sent: Monday, February 04, 2002 10:38 PM > To: EMC-PSTC > Subject: Conducted noise emission diagnosis device > > > Hello Group, > > > I am looking for a device that will differentiate the dominant > component > (either > common-mode or differential-mode current) in the total conducted noise > emission > current of a product measuring through its' power cord using a LISN. > > > This device can be called "common/differential mode current > separator". In > conducted > noise emission measurement, both common-mode and differential mode > noise > current are measured by LISN and the LISN can't tell which mode is the > dominant > current. > > > I came across a paper by Clayton Paul and Keith Hardin which explain > the > usefulness of a separator like this that would identified the dominant > current > from the total current. Hence, the correct capacitor value(either > X-caps or > Y-caps) can be changed accordingly so to reduce the overall conducted > noise. > The book by Clayton Paul "Introduction to Eletromagnetic > Compatibility" has > also mention about this device. > > > I have contacted a few persons trying to look for the person who have > actually > built this separator himself and I am also looking for any vendor who > have > this > product for sale. So far, my effort has yield no results. > > > Can anybody point me to the right person so that i can try to built > this > separator myself. Any other suggestion and comments are greatly > appreciated. > > > Best Regards, > > ************************************************************** > > Muriel Bittencourt de Liz > > Ph.D. Student > > Federal University at Santa Catarina > > Florianópolis, SC > > Brazil > > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: pstc_ad...@garretson.org > Dave Heald davehe...@mediaone.net > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > > All emc-pstc postings are archived and searchable on the web at: > No longer online until our new server is brought online and the > old messages are imported into the new server. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
