Hi All, I forgot the link to the article. It is: http://emcesd.com/tt2006/tt100106.htm I will have a podcast out on this topic in a week or so. I am behind as I am swamped in work at the moment. There are now over 100 articles and papers on my website at: http://emcesd.com Doug -------- Original Message -------- Subject: high pass filtering of contact discharge for troubleshooting Date: Thu, 05 Oct 2006 21:25:13 -0700 From: Doug Smith <doug@xxxxxxxxxx> Reply-To: doug@xxxxxxxxxx Organization: D. C. Smith Consultants To: emc-pstc <emc-pstc@xxxxxxxx>, SI-List <si-list@xxxxxxxxxxxxx> Hi All, I have posted this month's Technical Tidbit titled "Filtering Contact Discharges - Part 2, High Pass Filtering (for troubleshooting or simulation of ESD from small objects)." The article describes a method to high pass filter contact discharges from an ESD simulator. This method is useful for troubleshooting ESD problems in equipment or simulating discharges from relatively small metal objects. Abstract: High pass filtering of an ESD contact discharge can be used for troubleshooting ESD problems with equipment or simulating ESD from small metal objects in a repeatable way. A method is described for constructing a simple coaxial capacitor to provide a high pass filter that leaves just the initial peak of the hand-metal ESD waveform while attenuating the low frequency components. ---- The link to my University of California Santa Barbara seminar to benefit the University on November 1 is: http://www.ece.ucsb.edu/Research/HFFA2006/ All proceeds from the seminar go to the University. Most of the troubleshooting methods covered in the course are very effective and not taught by anyone else, a great excuse to spend a day or two in Santa Barbara. ---- 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: doug@xxxxxxxxxx \ _ / ] \ _ / Website: http://www.dsmith.org ------------------------------------------------------- -- ------------------------------------------------------- ___ _ 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: doug@xxxxxxxxxx \ _ / ] \ _ / Website: http://www.dsmith.org ------------------------------------------------------- ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu