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Thanks for the quick reply. I figured there had to be a way to do this. I will give it a whirl. --Brent

Okay, tried it and like it. Originally, when I started using LT Spice, I wanted to add a new symbol for the PUJT type of device. You gave me an example of this which went a very long way in teaching

There's an undocumented means to do this. You might have convergence trouble with it, especially if you put it inside a feedback loop. Here's a resistance that varies as the sine of time: * arbitrary

I just started using LTSPice a few weeks ago to model semi-insulating electro-optic devices as RC-mesh/networks. It works great... But I need to model the time dependence of theses devices as the

Yes! I'll be using it immediately. Thanks! Jon

I put up a version of LTspice today with a new feature. There's a new symbol attribute called ModelFile. This lets you specify a file to include as a library file whenever this symbol is included.

Hello John, you can use the program "ltsputil.exe" program to export selectively nodes of your circuit. The output is in a tabular form which can be used directly with hopefully all of the math and

Mike, Thanks for the quick response! I'll give that a try. - John

Use the .SAVE command option, also in the tools control panel the compression option can be set to ASCII data file which can parse by Mathcad with a lot of effort. a period,

Use the .save command to list those nodes and voltages that you wish. If there is no .save command, then it saves the defaults, which you can set in Tools=>Control Panel=>Save Defaults.(That's where

Is there any way to limit the number of voltages and currents that are saved during a transient analysis? Over the weekend I ran a simulation of a poly-phase voltage regulator. The resulting data file

Hello Mike, I have never said here that it is specific for LT models. My statement has been a general one for all vendor's models. If it is true that the Boyle model is so weak, why not starting with

The problem is that the PSpice models often don't converge very well and don't model noise correctly. That has nothing to do with Linear's opamp models, it's common to most Boyle style models. They

significant

--- In LTspice@..., Message 141, Panama Mike <panamatex@y...> wrote: < snip > > > BTW, I'm thinking of introducing opamp models that > use a different modeling methodology, similar to >

Quite apart from LTSpice, please accept a moral and ethical commendation. By living in another culture & learning its language you are promoting international understanding and respect for all

wrote: doesn't seem to Hello Arnold and all LTSPICE users. I have uploaded an example how your netlist based circuit can be converted to a LTSPICE schematic and model file. It is hopefully all

Arnold, Das freut mich. (English: Glad to hear it.) Nee, ich bin Amerikaner. Aber ich wohnte ein Jahr in Mainz. Nicht bei der Army aber auf der Uni. Das war in 1978. Man versteht meine deutsch

Hallo Helmut and Mike Engelhardt, thanks for finding and solving the +problem. My (LTspice-)World doesn't seem to collapse in the near future any more. Mr. Engelhardt, are you German? your Name is.