J.M.Woodgate's comments are very appropriate to identify where all the conducted noise is coming from in consumer residences but does nothing to mitigate the problem. The unfiltered SMPS used for replacement of the old reliable non noise generating physical transformer contributes little or no noise.
As soon as some of these high efficiency" noise (e.g. Halogen /Xenon lighting supplies) generators start truning the "Samrt House " concept into a Haunted House, watch the brickbats fly. Ralph Cameron EMC Consulting and Suppression of Consumer Electronics (After sale) p.s. That goes for the trasnformerless supplies in treadmills too. ----- Original Message ----- From: "Dick Grobner" <[email protected]> To: "IEEE EMC-PSTC E-Mail Forum (E-mail)" <[email protected]> Sent: Tuesday, November 28, 2000 3:50 PM Subject: IEC 61000-3-2 & -3-3 > > > > At the web address below you will find an article written by J.M. Woodgate > dealing with 61000-3-2 & -3. This may be of interest to some on this forum > as I know the issue seems to surface about every other week. > Happy Reading! > > > http://www.conformity-update.com/iec-61000-000908.htm > > Dick Grobner > Compliance Engineering > Medical Graphics Corporation > 350 Oak Grove Parkway > St Paul, MN 55127 > 651-766-3395 > 651-766-3389 (fax) > [email protected] > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: [email protected] > Michael Garretson: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > > > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
