> -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of John > Woodgate > Sent: Tuesday, June 29, 2010 10:33 PM > To: [email protected] > Subject: Re: HBM for leakage circuit model > > In message <[email protected]>, > dated Tue, > 29 Jun 2010, Brian O'Connell <[email protected]> writes: > > >Has anyone done a transfer function for the circuit in fig 4 of > >IEC60990? Which is same ckt specified for touch in IEC60950-1. > > It's calculable with a pencil, but I don't have a record. What about > using SPICE?
I, for one, consider that a blaspheme - never use a pencil when you can write 200 lines of opaque C. I do not understand spice, so tend to model stuff in C or Python - look at the really really enormously cool stuff in libraries like GSL, scipy, numpy, matplotlib, etc. Actually, my code is attempting provide 'normalization' in the xfr function for the weird input impedance characteristics of a thermal converter - only thing that I could find that would handle the hi CF of the current waveforms. > >I inherited a spreadsheet model done years past that does not make > >sense. > > Just delete it.(;-) I do not have to - windoze does this by itself.... - 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]>
