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Re: [Help-gnucap] diode models


From: John Griessen
Subject: Re: [Help-gnucap] diode models
Date: Fri, 22 Jul 2016 17:07:51 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.1.0

How would I enter this set of model parameters?

.model 1N4007 D(IS=7.02767n RS=0.0341512 N=1.80803 EG=1.05743 XTI=5 BV=1000 IBV=5e-08 CJO=1e-11 VJ=0.7 M=0.5 FC=0.5 TT=1e-07 mfg=OnSemi type=silicon)

I ran it and got errors, so deleted parts:

.model 1N4007 D(IS=7.02767n RS=0.0341512 N=1.80803 EG=1.05743 XTI=5 BV=1000 
IBV=5e-08 CJO=1e-11 VJ=0.7 M=0.5 FC=0.5 TT=1e-07 )

and gnucap says, "non-recoverable convergence failure, reducing (itl4)
newtime=3.300000e-05  rejectedtime=3.300000e-05  oldtime=3.300000e-05  
using=3.300000e-05
tried everything, still doesn't work, giving up"

deleted some more and added params for a 3Vf drop HV diode with BV=4000:

.model 1N4007 D(IS=7.02767n RS=0.0341512 N=1.80803 EG=1.05743 XTI=5 BV=4000 
IBV=5e-08 CJO=1e-11 VJ=2.7 M=0.5 FC=0.5 )

and no errors.

Am I OK?  where to find more documentation on spice models for diodes and 
transistors?
Where to find ones that work well with gnucap as is?



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