This was one of the reasons we designed and built our own analogue transistors load banks. The ones available on the market are often noisy and not suitable for EMC emissions measurements. At least, that's been my experience. A resistor bank has the advantage of simplicity, but the disadvantage of lack of adjustability. A transistor load bank can be designed to be continuously variable and can present a constant-resistance, constant-current or constant-power load to the EUT. ======================================
Ralph McDiarmid, AScT Compliance Engineering Group Xantrex Technology Inc. _____ From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff Gary Sent: Thursday, May 18, 2006 9:03 AM To: Price, Ed; emc-p...@ieee.org Subject: RE: Conducted emission measurements Agree with ED, the las time I used and electronic load it was terrible noisey in-and-of-itself. Too noisey for emissions tests. As lab equipment – at the time – it didn’t hgave any FCC emissions testing – and so I doubt it addressed this area at all. Maybe better these days but I would be skeptical until I tested a sample. Gary - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.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...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
