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Hello. Tell me how to model nonlinear magnetic elements? Thanks!

One common cause is that the max time step is set too large for the timescale. I have seen it sample down a sine wave and make a really bizarre lower frequency signal. As soon as the max time step was

Hello helmut, I am uploading the screen-shot of wave-form in Hspice and other files in the waveform folder .I would request you to simulate the netlist in hspice and waveform are different with

Hi Helmut, Thank you for coming back to me. No, the error was not intended, I just did not know how to correct it. However, I just plodded on and the results were roughly what I was suspecting and as

Octave, The unit of flux is Webers (wb). If you know the inductance as a function of current, flux=integral(L(i) di). Note that LTspice uses x to denote the current in the inductor. Rick

Hey folks: I am looking for documentation on the standard.___ files. Some of these files are in a binary format, and I would like to create a few scripts to put our qualified components into these

Hello Michael, Your uploaded circuit has errors. Was this intended? Error on line 8 : v2 n004 0 w Unknown parameter "w" Your uploaded 1.6MB RTF file contains a picture which would require only 11kB as

Rick; I appreciate your hints. BTW, what are the units of flux that are proper for the non-linear equations? TIA Octave

Hi Andy, Thank you for your advice. I will keep it. Fortunately I uploaded the schematic File in the Temp Files as 'Aufgakol_w_mod2' Please take a look and play with it after loading the relevant

Octave, LTspice has 2 noninear inductance models. For one of them you need to provide an equation for the flux, and for the other you need to give core parameters and the gap. LTspice also can handle

Dear Sir; I often use LTspice as a way to communicate circuit concepts to my distant colleagues. Expressing variable resistances as R= some-function, will greatly comfort those folks who have limited

Hello Octave, Normally one doesn't need this function. If you look in the SPICE error log file, you will see that it's replaced by a B-source. So it's not an extra R-model. It's simply a little bit

The R-value by function is new to me, having never noticed it before. I always thought the only way to make a resistance which changes during the sim, is by the MySwitch example, which is rather

I think that limitation applies specifically to the .PARAM statement.

Hey folks: I am looking for documentation on the standard.___ files. Some of these files are in a binary format, and I would like to create a few scripts to put our qualified components into these

Hello Octave, The R-function R=any_forumala is since many years available in LTspice. Please be aware that such pseudo-resistors have no noise in a .NOISE-analysis. It's also independent of any

Hello Sourav, I run your files and it looks OK. Could you please upload a screenshot with the result of HSPICE. You could switch off data compression to be sure that the calculated results will not be

Helmut; This is a wonderful example, thanks. I'm a bit surprised that it is OK to make a component parameter to be a function of a node voltage. At minimum I would have assumed a need for {curly

That is because you tried to upload .rtf (Rich Text Format) files. The RTF file format is one of the most wasteful ones in terms of file space. Also, RTF is a word processing file format, so I am

Thank you folks.. yes it was the second "Mpsa18" on the value line. Just took it out, and it seems to simulate now. I'll work with it... Thank You! Thank you!! A...