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I can't remember when the UniversalOpamps first came into being, but there's a good chance there's been a bug in them from the start. Although I realised there was a problem long ago when I modified

You are correct about the trap ringing, and I hadn't seen any of it because I have modified trap selected as my default integration method. The plt file was generated by LTspice 24.1.5, so it may not

Hello, based on the same work, I modified veijola model to add a temperature pin. /g/LTspice/files/z_yahoo/Lib/PTC%20Thermistors/Physical%20model/ptc_veijola_pascal06.zip

Dear Andy, Thank you for providing such a useful insight. I will keep this in mind and change the integration technique to Modified Trap or Gear. With Regards, Ankit

Dear Dennis, A very good day to you. You are a gem of a teacher, sir. While we do not know each other, still, you are my guru. I am grateful for your kindness. I will definitely acknowledge you in my

Excellent work. This comment from me, below, affects only few of you, so most of you can ignore it. The simulation has considerable "Trap Ringing" (or "Trap Oscillation") at the MOSFET's drain current

On page 4 of this whitepaper ( How to interpret SiC MOSFET datasheet parameters (

Sounds like your installation went sour, or that your computer is not set up to display HTML correctly.? I think it should have gone to your web browser, not to Notepad.? Maybe your computer has the

Hi, I tried to access LTspice Help Menu this morning to check the syntax of a Directive, but found that? Help on the top bar of LTspice (left clicking on LTspice Menu)? opens a Notepad file with the

Hi Andy, My mistake, I expected that there would be a time frame on Temp files, but I missed the fact that the original Messsage was 2023 ... thanks again for your Help. Cheers, Ian

Ian, The "Temp" folder name means "Temporary".? Files in the "Temp" folder are there only temporarily, not permanently.? Those files from this topic were uploaded to the "Temp" folder ages ago -

Hi Andy I, Yes, that was one of the Files I was searching for .... mosfet_gate_charge.zip and it has just appeared. However, the following files haven't are not in the Temp folder (that I can see).

Ian, Maybe you were looking for the file "mosfet gate charge.zip" that Ankit mentioned yesterday in message # 159674 ( /g/LTspice/message/159674 ). I have just moved that file back to

Just what files were you looking for? Andy

Hi all, Mmmm .... I can't find any of these files. I'm in /g/LTspice/files/Temp ( /g/LTspice/files/Temp ) no files starting with Gate? or? mosfet (

A very clear explanation.

Dear Dennis, Thank you so very much for such an insightful and beautiful explanation. I will be under your debt forever. I have a follow-up query though and it is as follows: You mention>> " *I think

I think I should point out that the pulse duration is not important for this test in a simulation. It is important for real parts that dissipate power during the test to ensure they do not overheat.

I don't think there is anything foolproof but I will try to explain the working of the circuit. It applies a constant current to the gate of the MOSFET. The x-axis displays the product of that

When I adapt models with bad diodes, I replace the diodes with LTspice diode.