Hi All, I just posted my Technical Tidbit for March, 2010. Together with the February article, the two Technical Tidbits treat damping board resonances caused by the capacitance between two PCBs and the inductance of the conductor connecting them.
Technical Tidbit - February 2010 Damping Board Resonances Using Discrete Resistors URL: http://emcesd.com/tt2010/tt020310.htm February's Technical Tidbit details a method of damping the resonance that occurs when two circuit boards or one board and a chassis are connected by a conductor. The method is simple and inexpensive. Abstract: When circuit boards are connected by conductors, a resonant circuit results from the inductance of the conductors and the capacitance between the circuit boards. A simple way to damp such board resonances is discussed. The method can be very useful if the designer is restricted to only one connection point between two boards and applies both to a pair of boards or a single board mounted over a metal chassis. Technical Tidbit - March 2010 Damping Board Resonances Using Discrete Resistors - Part Two (Frequency Domain Measurements) URL: http://emcesd.com/tt2010/tt030410.htm This month's Technical Tidbit details a method of damping the resonance that occurs when two circuit boards or one board and a chassis are connected by a conductor. The method is simple and inexpensive. Data is presented in the frequency domain. Abstract: When circuit boards are connected by conductors, a resonant circuit results from the inductance of the conductors and the capacitance between the circuit boards. A simple way to damp such board resonances is discussed and measurements presented in the frequency domain. The method can be very useful if the designer is restricted to only one connection point between two boards and applies both to a pair of boards or a single board mounted over a metal chassis. This Technical Tidbit is an extension of the February 2010 Technical Tidbit time domain results to the frequency domain. To this point, I have published over 150 technical papers and Technical Tidbits! When I started the Technical Tidbits, I wondered how long it would be before I ran out of ideas to write about. Now, there seems like an endless supply of ideas to write about. In addition, I am generating 3 audio podcasts and a video tutorial per week as well. Keeping busy. Have a good month, 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. 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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]>
