Question for LTSpice Users
Jim Thompson
LTSpice?
What I have in mind is using my venerable MicroSim Schematics as a
frontend for LTSpice.
I have dozens of years of collected symbols... too late to teach an
old dog new tricks.
Thompson is about to bail from PSpice... a continual money-hole with
no improvements in years... they haven't even fixed the bugs I
reported 5 years ago :-(
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
John Larkin
<To-Email-Use-Th...@My-Web-Site.com> wrote:
>Has anyone used anything other than the provided schematic entry for
>LTSpice?
>
>What I have in mind is using my venerable MicroSim Schematics as a
>frontend for LTSpice.
>
>I have dozens of years of collected symbols... too late to teach an
>old dog new tricks.
>
>Thompson is about to bail from PSpice... a continual money-hole with
>no improvements in years... they haven't even fixed the bugs I
>reported 5 years ago :-(
>
> ...Jim Thompson
LTspice schematics are simple ASCII text files. If you can somehow
export your old stuff in some understood, preferably text, format, it
wouldn't be monstrous to write a Basic or Pearl program to do the
conversion.
John
Jim Thompson
MicroSim Schematics is text-based as well. However, MicroSim
Schematics is one of the best tools ever written... I want to continue
using it.
Genome
"Jim Thompson" <To-Email-Use-Th...@My-Web-Site.com> wrote in
message news:1reqp293e2ujkg3sp...@4ax.com...
> Has anyone used anything other than the provided schematic entry for
> LTSpice?
>
> What I have in mind is using my venerable MicroSim Schematics as a
> frontend for LTSpice.
>
> I have dozens of years of collected symbols... too late to teach an
> old dog new tricks.
>
> Thompson is about to bail from PSpice... a continual money-hole with
> no improvements in years... they haven't even fixed the bugs I
> reported 5 years ago :-(
>
> ...Jim Thompson
> --
You can copy and paste a spice netlist file as a spice statement in the
LTspice editor window and things seem to run........ So use MicroSim to
generate a .net file and carry on.
It's not elegant but....
.include filename.net doesn't seem to work but there may be something
similar that does.
Watch out for the license agreement!
You may as well e-mail Mike for a better answer, unless you are not mates
anymore.
DNA
Jim Thompson
wrote:
Which license agreement would that be?
>
>You may as well e-mail Mike for a better answer, unless you are not mates
>anymore.
>
>DNA
>
I would, but I've misplaced his address :-9
Genome
"Jim Thompson" <To-Email-Use-Th...@My-Web-Site.com> wrote in
Well..... help|about gives you an e-mail address for comments and bug
reports. Each time I've used it Mike was the person who replied.
License...... help|help topics|License Agreement/Disclaimer.....
"This program is specifically not licensed for use by semiconductor
manufacturers in the promotion, demonstration or sale of their products.
Specific permission must be obtained from Linear Technology for the use of
SwitcherCAD III for these applications."
OK it does not sound like it specifically prevents you from using the
software to do what you do but it might be interpreted that way. I'm sure
Linear Technology would take a dim view of things if you started using the
software to design stuff that encroaches on their market.....
Play the 'White Man' and ask before you get stomped on...
DNA
Jim Thompson
wrote:
Oooops! I DO HAVE a request for a switcher design here on my desk ;-)
qrk
<To-Email-Use-Th...@My-Web-Site.com> wrote:
>Has anyone used anything other than the provided schematic entry for
>LTSpice?
>
>What I have in mind is using my venerable MicroSim Schematics as a
>frontend for LTSpice.
>
>I have dozens of years of collected symbols... too late to teach an
>old dog new tricks.
>
>Thompson is about to bail from PSpice... a continual money-hole with
>no improvements in years... they haven't even fixed the bugs I
>reported 5 years ago :-(
>
> ...Jim Thompson
LTspice will read the Schematics net list output. I was doing that
back a few years ago on "that" project. PSpice does have a nicer
graphing utility, so it would be spiffy if you could convert the
LTspice output file to something PSpice's graphing utility could
swallow. Although, I really like how LTspice shows graphical results
as it is running the simulation.
---
Mark
Genome
"Jim Thompson" <To-Email-Use-Th...@My-Web-Site.com> wrote in
>
> Oooops! I DO HAVE a request for a switcher design here on my desk ;-)
>
> ...Jim Thompson
> --
Ooooooh me-gosh. Just call me jealous.
DNA
Jim Thompson
mi...@sushi.com
Netlisting is more than half the battle. Why not just feed the netlist
to any number of other spice simulators out there. Ngspice for
instance.
http://ngspice.sourceforge.net/
Joel Kolstad
> 1W / ą40V
Size of a sugar cube or smaller?
I had a professor tell me something pushing a decade again that state of the
art was supposedly ~100 watts/cu. inch... Of course this isn't really that
meaningful, since converting some flavors of power is a lot easier than
others...
Jim Thompson
<To-Email-Use-Th...@My-Web-Site.com> wrote:
>Has anyone used anything other than the provided schematic entry for
>LTSpice?
>
>What I have in mind is using my venerable MicroSim Schematics as a
>frontend for LTSpice.
>
>I have dozens of years of collected symbols... too late to teach an
>old dog new tricks.
>
>Thompson is about to bail from PSpice... a continual money-hole with
>no improvements in years... they haven't even fixed the bugs I
>reported 5 years ago :-(
>
> ...Jim Thompson
I just told them, "No más",... it's official ;-)
Stuart Brorson
:>Has anyone used anything other than the provided schematic entry for
:>LTSpice?
Yes, LTSpice accepts and runs any (syntactically correct) SPICE
netlist which you can generate. In the past I have used parts of the
gEDA Suite to generate SPICE netlists for LTSpice. My usual path is
gschem (schematic capture) -> gnetlist -g spice-sdb (netlist
generation) -> LTSpice (import & run SPICE netlist). I keep three
windows open, one for running each tool. This flow works quite
handily for me.
: I just told them, "No m?s",... it's official ;-)
Geronimoooooooo!
Stuart