On Fri, 17 Oct 2014 16:04:10 +0100, "Kevin Aylward"
wrote:
"Jim Thompson" wrote in message
. ..
Hi Kevin,
Suppose I wanted to model JUST the capacitance portion of a diode? No
DC current, etc.
The equation "fold-over" at VD~FC*VJ looks to be PITA to implement.
Maybe you know of a way to trick a full diode model into not doing its DC
thing ?:-}
I agree with the post by Maynard, making N large will turn it off.
I=IS(1- exp(qV/KTN) )
N=100 keeps it off for up to 10V
Can be handy to keep some IS for convergence.
Kevin Aylward
www.kevinaylward.co.uk
www.anasoft.co.uk - SuperSpice
Aha! I didn't think about "N"
...Jim Thompson
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