Steve, Your comments regarding power factor correction are on target. You are correct about the standard becoming effective the beginning of this year. Don't miss the advantage of A14 which is also now in effect. It is my understanding that Class D applies to computers, TVs, and monitors; other equipment considered commercial and industrial equipment is Class A irrespective of the waveform. This is why so many people were eager to see A14 implemented as soon as possible.
Best regards, Don Umbdenstock Sensormatic > ---------- > From: Steve Austin[SMTP:[email protected]] > Reply To: Steve Austin > Sent: Tuesday, February 20, 2001 5:34 AM > To: [email protected] > Subject: PFC > > Jon, > > There is no specific requirement for power factor correction as far as I > know. > The Harmonics Emissions Standard BS EN 61000-3-2 1995 became mandatory > 01/01/2001, this sets limits for the harmonic disturbance permitted on the > mains - so it adds up to the same thing. . > > It applies to all equipment having a mains input power consumption over 75 > watts. > > Your type of equipment must meet limits defined as being Class A or Class > D. > Units fall within Class A unless they have a wave shape lying within a > "special wave shape", in which case they are Class D. > Class D limits are more onerous. > > Computers, monitors and televisions must meet Class D limits, irrespective > of wave shape.. > > You need a copy of the standard for the limit tables and the "special wave > shape". > > Regards > > Steve Austin > < [email protected]> > > > ----- Original Message ----- > From: Jon Keeble < [email protected]> > To: < [email protected]> > Sent: Monday, February 19, 2001 11:24 PM > Subject: PFC on 150w mains to DC switcher > > > > > > I have selecting a 150w universal input (110-240 VAC nom) four rail > switcher > > for > > use in a product (digital audio workstation) to be shipped to USA, > Japan, > > Europe etc. > > > > The supply has a CE mark. I notice, however, that there is no PFC stage, > > and no mention of PFC in the supply data sheet. > > > > I thought that PFC was required in Europe - could someone please confirm > / > > deny this? > > > > Thanks > > > > Jon Keeble > > ----------------------------------- > > Hardware Engineering Manager > > FairlightESP Pty Ltd > > Phone +61 2 8977 9931 > > [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]
