开云体育

Now the OP tells us that the.ASC is just a fragment of something bigger, so loose ends are to be expected.

It's not that they look funny, it's that the output of U2 (marked 'fb' for 'feedback?), goes nowhere, and the supply rail from C3 looks as if it should power something, perhaps a missing U1? I also

Hi, The line GD16 16 1 TABLE {V(16,1)} ((-100,-100E-15)(0,0)(1m,1u)(2m,1m)) is pspice syntax and accepted by LTspice. You need not change it. The only downside of the pspice syntax is that it is not

Oops, I mis-stated.??I wrote: That should have said, "... even though it previously did and it would be best if it continues to do so. " Andy

Derek, I have (maybe) good news and mostly not so good news. I think my obsessing over the syntax was somewhat misplaced.? In my opinion this form of the TABLE function is rare, and it's not

Derek, I think your voltage source V1 is wrong.? Its sine wave amplitude is 1.2 V with a DC offset of 0.6 V, so it swings between -0.6 V and 1.8 V.? That goes low enough to violate the Absolute

Thanks Andy. I will attempt to correct the model when I get back to this next week. I was not sure how to handle the TABLE statement. I do have the latest LTSpice loaded. As for the age of the model,

I extracted the main simulation I was working on. The .asc is the portion that should work. It is just that I was getting errors about the model.

Derek, If I am right about the formatting of the G-source TABLE() functions, you can modify them like the following: First TABLE function (1 of 12): old line:? GD16 16 1 TABLE {V(16,1)}

I still get the "timestep too small" error.? ?But I'm using the computer with the older LTspice version today. See the FAQ ( /g/LTspice/files/z_yahoo/FAQ/faq_17-2.txt ) file for

There appears to be something missing from your upload. Download the .ZIP to Downloads and open it from there. There is a wire form C3 that goes nowhere and one labelled fb that also goes nowhere.

I downloaded a model from OnSemi and am having issues with it simulating. Something about the TABLE lines. I am not a Spice expert, but would like some guidance to get the model working. I uploaded

Indeed - *almost* everything in LTspice is case-insensitive, just like all SPICE programs. LTspice does recognize upper/lowercase in a very limited situation in the waveform viewer, where "mHz" and

More specifically, being SPICE, it doesn't matter: SPICE is case-insensitive, regardless of what the OS does. -- This email has been checked for viruses by AVG antivirus software. www.avg.com

Does it matter if it's "rs", "RS", or "Rs"? It being windows probably not?

Actually, I meant: LTspice XVII doesn't recognize rs as a//parameter of a diode /model/, which cannot be true. But what really matters is why the error occurs and how can it be fixed. -- Be

No, that is actually correct.? Here is what a Diode element line should look like, according to LTspice's Help: Notice there is no parameter named Rs.? The only listed parameters are Area, "off", M,

Actually, defining something twice (or more) is usually OK in most SPICE programs.? I think it was designed to work that way. In LTspice, sometimes you get a warning message, sometimes not.? And in

FYI, another way you can do that, which might work reasonably well, is this: * Edit the .MODEL command to make its Rs=0. * Add a discrete resistor in series with the diode, with resistance = Rs. There

When you use "Pick New Diode", you select from the diodes in your standard.dio (and/or user.dio).? Therefore, open standard.dio in Notepad/Wordpad or your editor of choice, or in LTspice itself.?