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Referring to Trap Ringing, in general that does not happen.? It might happen in some situations, but usually not. Andy

Does it also disappear when you change to Method=Gear? Does LTspice's Modified Trap integration method obscure the glitch, along with any residual Trap Ringing? I am puzzled by the apparent

Hello All: I ran my project in 24.1.9 with .options debugtran until it stalled producing many: Simulation tolerance relaxed to achieve convergence from 9.1e-02 to 9.1e-02 seconds warnings. I found in

Hello Andy: A glitch is an unwanted or unexpected signal transition that occurs in a circuit before it settles to its intended value. A TRAP glitch is sometimes just a glitch and sometimes it's the

That's one way of providing the model file name. The other way is to add the directive to the schematic: .lib <modelfilename> This method has the advantages that it makes it obvious what the file name

I looked at the symbol file within that trimpot.zip upload and discovered that the subcircuit file name must be entered into the ModelFile field, within the Attributes page of the symbol file.? I had

There's no mystery. Just unread information. The official Help has always lagged. Menu > Help > Show LTspice Change log

Please always include at least a bit of the post you are replying to. In this case, a Search for 'debugtran' cause the Offline Manual to sulk. This is with 24.1.9. -- This email has been checked for

You could have said so. But it's clear that you entered the wrong data into the online calculators. If you hadn't, the results between those and LTspice would have be almost identical, as I showed. I

Sigh... Yet another undocumented feature. There is no mention of this option in the help for ".options" or "Transient analysis options". How are users supposed to know what this does or when it might

The two diodes I used were BAV199 at 10uA to 15mA & 1PS66SB82 at 100uA to 150uA, both running at 25 °C. This is my 1970s multimeter; the lowest ranges are 250 mV DC, 1.5V AC at 50K ohms/V and 10K

All, I just uploaded a file called Trimpot.zip. In the past, I have had many issues with a number of pot designs in the archive. Some designs required you to place a directive someplace on the

The following items have been added to the Files area of the [email protected] group. * /Temp/Trimpot.zip ( /g/LTspice/files/Temp/Trimpot.zip ) *By:* Mike Fraser

Have you tried a run in 24.1.9 with .options debugtran This will produce diagnostic in the log file which might allow you to fix the problem. Best Regards, Mathias

What is a TRAP glitch? For that matter, what exactly is your meaning of "glitch" in this particular context? What are your waveforms supposed to show us? Unfortunately, I think no conclusions can be

Hello Roy: The project embodied by the circuit schematic is proprietary and will be sold in commercial markets. Therefore I am not permitted to upload the project. But I can say that the circuit is

What is the circuit?

Hello again, I renamed the extraneous file as you requested so that it will not be used again. Potentiometer test circuit.asc (the top level schematic) is now associated with only 2 files: symbol file

'tera', not 'terra'. I don't see that a voltage change could be superluminal, because it's based on a field, but a current in a wire is electrons, and they can't exceed the speed of light in a vacuum,

Hello All: I managed to catch a TRAP glitch in the wild. The photo Glitch10 shows a TRAP glitch that caused a singular matrix failure somewhat later at 96.518252ms. The photo Glitch11 shows a TRAP