I read in !emc-pstc that Chris Chileshe <[email protected]> wrote (in <[email protected]>) about 'Designing for low power conducted and radiated immunity - Thanx' on Mon, 2 Sep 2002:
>I believe the gist of your responses was that it is a bit of a tall >order to try and get a filter that will let 25kHz signals through >and reject RF at 150kHz. No problem if the 25 kHz signals were sine waves. It's the harmonics in the digital/pulse signals that make it difficult. If you put in a filter (with a reasonably good phase response) at, say, 30 kHz, and then amplified and hard-clipped the 25 kHz signals, you might be OK. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk 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: Ron Pickard: [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: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
