Hi All, A number of you have attended my web presentation on ESD/EFT internally generated in system power supplies. As little as 500 V of applied ESD or EFT is able to break down the supply in both polarities for only one applied polarity. I have posted on this before. Now, in addition, to the small wall plug power supplies tested, I have now confirmed that "brick" type supplies used in PCs can also exhibit these characteristics. Next to try on larger internal power supplies, likely to see the effect here too. We will see. (Any of you know who said that quote? It is someone from a completely different field from us.) All the bad data I have ever seen, came from "calibrated" equipment. Here are some links on the above topics (if your computer puts a "[1]" in the link, remove it. Internet files do not end with "[1]": http://www.emcesd.com/tt2014/tt120214.htm (my latest Technical Tidbit) December 2010, Comparing "IEC 61000-4-2 Compliant" ESD Simulators March 2011, Using High Frequency Measurement of ESD Current to Find Problems with an ESD Simulator Also check out my YouTube channel tech videos, >100,000 view now. Look for "Doug Smith EMC" and that should bring up my channel. I am not one of the Doug Smiths who are musicians. 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 -------------------------------------------------------------- - |
- [PSES] Brick power supplies and test errors (two topics) Doug Smith
- Re: [PSES] Brick power supplies and test errors (tw... Arthur Michael
- Re: [PSES] Brick power supplies and test errors (tw... Nyffenegger, Dave
- Re: [PSES] Brick power supplies and test errors (tw... Ed Price
- Re: [PSES] Brick power supplies and test errors... Grasso, Charles
- Re: [PSES] Brick power supplies and test er... Pettit, Ghery
- Re: [PSES] Brick power supplies and tes... Ed Price
- Re: [PSES] Brick power supplies an... Brian Oconnell
- Re: [PSES] Brick power supplie... Ken Javor
- Re: [PSES] Brick power supplie... Michael Derby
- Re: [PSES] Brick power sup... Anthony Thomson