Got a DC / DC converter in an ITE. >From a radiated emission plot, I can see lot of spikes with spacing 330kHz in the region 30-80MHz. The DC / DC converter datasheet tells that the switching frequency is 330kHz. No suppression components around the converter. I assume a common mode choke could block some on the noise, so it does not enter the power supply cable, which may act as an antenna in this case.
Any other "tricks" for EMI suppression of DC / DC converters? #Amund - ---------------------------------------------------------------- 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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
