Re: [Ngspice-users] graphics with gnuplot

[Dave C. <dm...@dm...>]

Holger,

Thanks for putting up with all my questions. I concur, GNUPlot 4.2.6 
works fine. I was looking through the gnuplot code in the ngspice 
source. All I can say is wow! This appears to be a work that has taken time.

By the way, I have made progress with the B Source, but am not 
entirely satisfied with my results yet. By that I mean I can get the 
converted model I am working with to compile but has problems 
running. There are two keywords in PSPICE that give Spice user's fits 
(as I am sure you are well aware). These are the TABLE and VALUE 
model parameters. ISSpice has a good article on how to convert from 
PSICE to ISSpice ( see http://www.intusoft.com/Pspice2IsSpice.htm if 
interested) where they also use an 'A' source: Item 6) "Convert E and 
G tables". I've been attempting to convert a Microchip MCP6001 op am 
PSPICE model for use into ngspice using the approach you suggested 
(the 'B' source in combination with the information gleaned from the 
ISpice4 app. note). If successful, it might be of use to many that 
use vendors that offer only PSPICE versions of their deices.

Finally, I've been reading Paul Tobin's books from the series of 
"Synthesis Lectures on Digital Circuits Collections'. My first 
attempt from his "PSpice for Analog Communications Engineering" was 
of a AM Modulator using the AD633 (DSB and DSBSC) with excellent 
results. I have ordered some of these devices to see what the 
correlation with ngspice is. I can post the source deck, however, the 
bulk of the source deck is an Analog Device Spice model (fortunately 
not PSPICE specfic). Probably the best way is to send a directory 
with the simulation with instructions as per the examples. Your thoughts?

Thanks,

Dave

At 04:37 AM 1/2/2010, you wrote:
>Dave,
>
>both of my versions work with gnuplot 4.2.6, none is working with
>gnuplot 4.4.
>I have sent a bug report to gnuplot-
>
>Holger
>
>
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