Ian, I would expect a power supply to function according to its specifications. This means that all output voltages have to stay within the specified tolerance limits.
Best regards, Michael Michael Nagel Senior EMC Engineer Motorola GmbH ECC Embedded Communications Computing Lilienthalstrasse 15 85579 Neubiberg/Muenchen - Germany Ph: +49-89-9608-0 Fax: +49-89-9608-2376 e-mail: [email protected] info: http://www.motorola.com/computers From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, May 18, 2006 3:47 PM To: [email protected] Subject: Burst and surge tests Dear Group, I have a question regarding the likely behaviour of ac to dc switch mode power supplies during fast transient burst tests to EN 61000-4-4 and surge tests to EN 61000-4-5. For a manufacturer to claim conformity to these standards are any constraints placed on the behaviour of the dc output voltage during the tests? I am particularly interested in the likely change in DC voltage output as the appropriate burst/surges are applied to the ac input. Many thanks in anticipation of your replies. Best regards Ian Unwin Lead Engineer Servomex Group Limited ********************************************* *Register now at www.servomex.com/zap.html * *for an opportunity to win a great prize * *in our monthly draw. * ********************************************* ________________________________________________________________________ This email has been scanned for all viruses by the MessageLabs SkyScan service. This electronic message contains information from Servomex which may be privileged or confidential. The information is intended to be for the use of the individual(s) or entity named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please notify us immediately. Activity and use of the Servomex E-mail system is monitored to secure its effective operation and for other lawful business purposes. - 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 [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - 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 [email protected] 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 [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
