Hi All, I have posted my latest "Technical Tidbit" at http://emcesd.com. The title is: Placement of Parallel Capacitors on a Printed Wiring Board (for troubleshooting or a quick fix)
Abstract: Capacitors are sometimes added in parallel to an existing capacitor on a printed wiring board to improve the high frequency characteristics of the existing capacitor for troubleshooting purposes or for a temporary fix. Ways of mounting the added capacitor are discussed and recommendations made. The most popular mounting method is shown to be ineffective for some cases, especially at frequencies of hundreds of megahertz and higher. The link to the article is the picture at the bottom of the home page at http://emcesd.com of the board with one part stacked on top of the original capacitor. One of the purposes of the articles I write is to give engineers a source to cite to peers or their managers to support the engineer's views. Having an independently written article that agrees with your position can be a powerful tool to advance your views in the organization. If the "Technical Tidbit" articles have worked for anyone this way, I would be interested to know. Doug -- ___ _ Doug Smith \ / ) P.O. Box 1457 ========= Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o | Email: [email protected] \ _ / ] \ _ / Website: http://www.dsmith.org - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
