[PSES] Audio sources, class D digital amps, radiated emissions, and philosophy

[Doug Smith]

Hi All, Just finished and posted my August 2014 Technical Tidbit titled: Radiated Emissions Can be Strongly Affected by Driving Signals, A Problem for Emissions Testing (An Example Using a Class D Stereo Audio Amplifier) Abstract: Radiated emissions from electronic equipment can be a strong function of how the equipment is operated. In the case of class D audio amplifiers, the audio signal driving the amplifier can have a large effect on emissions. Test results and implications are discussed as they relate to the philosophy of radiated emissions testing. The link to the article is: http://www.emcesd.com/tt2014/tt081914.htm The link to the main page: http://www.emcesd.com/ (lots of new stuff there) Check to make sure your computer does not corrupt the links above. They should look just as above with no other symbols or numbers added as Windows sometimes does at the end of the link of the form "[1]". Doug -- University of Oxford Tutor Department for Continuing Education Oxford, Oxfordshire, United Kingdom -------------------------------------------------------------- ___ _ Doug Smith \ / ) P.O. Box 60941 ========= Boulder City, NV 89006-0941 _ / \ / \ _ TEL/FAX: 702-570-6108/570-6013 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o | Email: d...@dsmith.org \ _ / ] \ _ / Web: http://www.dsmith.org -------------------------------------------------------------- - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>