I read in !emc-pstc that [email protected] wrote (in <LFENJLPMMJB [email protected]>) about 'Marine approved power supply', on Tue, 22 Jan 2002: >I am looking for a power supply (input:230VAC/50Hz output:28VDC/3A) which >can pass the tests according to IEC60945/EN60945. > >What I am worried about is conducted emission in 10kHz-150kHz (96-50dBuV) >and radiated emission 150kHz-30MHz (150kHz/80dBuV/m - 300kHz/52dBuV/m - >30MHz/34dBuV/m). > >I don't think there exist any marine EN60945 "approved" power supply. But, >if you know about a product which has gone through the IEC60945/EN60945 >tests with a power supply included form a recognized PS manufacturer, >please let me know.
A linear power supply would have no great difficulty in meeting the emission requirements, and would not be very large. While it's probably not impossible to make a switching power supply that conforms, it would certainly be difficult. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk After swimming across the Hellespont, I felt like a Hero. PLEASE do NOT copy news posts to me by E-MAIL! ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] 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.
