Ken, The gun model is derived from extensive research by Mike King and others (David Pommerenke) to derive a pulse that reflects an ESD event from a human with an intervening metal object.
I have copied Mike for his input. Dr Pommerenke is on the EMC blog. Thanks Charles Grasso (w) 303-706-5467 From: Ken Javor [mailto:[email protected]] Sent: Tuesday, June 19, 2018 2:35 PM To: [email protected] Subject: Re: [PSES] ESD question This message originated outside of DISH and was sent by: [email protected]<mailto:[email protected]> What with Doug Smith being active in this sort of standard writing activity, I doubt it's simply inertia. Ken Javor Phone: (256) 650-5261 ________________________________ From: John Woodgate <[email protected]<mailto:[email protected]>> Date: Tue, 19 Jun 2018 21:26:38 +0100 To: Ken Javor <[email protected]<mailto:[email protected]>>, <[email protected]<mailto:[email protected]>> Subject: Re: [PSES] ESD question Probably handed down on a stone tablet in 1910 and no-one had the courage to challenge it yet. (;-) John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk<http://www.woodjohn.uk> <http://www.woodjohn.uk><http://www.woodjohn.uk> Rayleigh, Essex UK On 2018-06-19 21:18, Ken Javor wrote: ESD question Anyone out there know the origins of the 150 pF/330 ohm gun model used in EN61000-4-2 and derivative standards? It seems it ought to be a human body model, but it isn't. Ken Javor Phone: (256) 650-5261 - ---------------------------------------------------------------- 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]<mailto:[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) <http://www.ieee-pses.org/list.html><http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]<mailto:[email protected]>> Mike Cantwell <[email protected]<mailto:[email protected]>> For policy questions, send mail to: Jim Bacher <[email protected]<mailto:[email protected]>> David Heald <[email protected]<mailto:[email protected]>> - ---------------------------------------------------------------- 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]<mailto:[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)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]<mailto:[email protected]>> Mike Cantwell <[email protected]<mailto:[email protected]>> For policy questions, send mail to: Jim Bacher <[email protected]<mailto:[email protected]>> David Heald <[email protected]<mailto:[email protected]>> - ---------------------------------------------------------------- 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]>
