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Tony wrote, "There is no intrinsic SPICE IGBT device. This is why all IGBT models are .subckts." Well, actually there are.? Mike Engelhardt sneaked it into LTspice at some point. But I think I have

Richard wrote, " Aren't IGBT's supported on version 4.23I? " Yes and no.? Actually, the answer is yes, but with a twist.??This has no effect on the present discussion, but it might affect you if

I tell a lie. An intrinsic model for IGBTs was introduced some time since LTspiceXVII was introduced. From the Help: Old member analogspiceman did a lot of work on IGBTs including with the new

Richard wrote, "I have needs for these file too. I use them in the usual way, but I get an error. Please help." Tony already explained what the main mistake was, and how to fix it.? The name of the

R Clark wrote,: "Hello, does any boby have an example of IGBT model ? No obvious to find !" Go to this group's homepage ( ltspice.groups.io/ ( https://ltspice.groups.io/ ) ).? Click "Files" in the

Actually, point 3 is not removed. Duplicates do cause problems. If I were you, I would also stick to one time range multiplier. Mixing milliseconds and nanoseconds is asking for trouble. And that's

I get an error message: Your basic problem is arithmetic. Here's your 1st two lines: 0.000000000ms 0V +500n 5V +0.000000000ms 5V +500n 0V 0.000454268ms 0V +500n 5V +0.000240828ms 5V +500n 0V Let's

I had this once but thought I had sorted that out. Gotta review the value genration alogorithm again. -- Christoph

I get an error message saying that the PWL values in the text file are not in chronological (time) order.

Actually the file has 256 rows (the signal interval is divided into 256 bins), but even with these 8 values, LTSPICE hangs. -- Christoph

I have uploaded the project: /g/LTspice/files/Temp/PWM_fromfile.zip

LTSpiceXVII (macOS, but under WineCX) hangs when starting the simulation. It doesn't finish reading the data in a tolerable time interval. Had to kill the application. -- Christoph

Both schematics display correctly on my system, in both LTspice 17.1.9 and LTspice IV. It sounds more like the issue might be connected with your graphics card or driver. Some years ago, I had a

I have moved your uploaded zip to the correct location - File > Temp. You should be able to modify your files, if you need to add/change/delete any. Uploads are not moderated, only messages. --

uploaded the file SYNC_GEN.zip ASC file with an inductor symbol display problem on my system : when inductor is in horizontal position (R=90 in asc file) sync_gen_v5_bridge.asc has the problem and the

FYI, I have used this model in a PFC-Booster application. Basically. it worked without error messages, but exhibits high peak current transients. As Tony wrote,? avoiding/deleting the .lib-extension

Did you not read my earlier message? Change the value of the IGBT from "IKW25N120H3.lib" to "IKW25N120H3". You might also bear in mind that the uploaded model is quite poor in respect of its DC

Hello, What ever I do , I got this Error messaige Any idea Fatal Error: Unknown subcircuit called in: xu1 n001 n002 0 ikw25n120h3.lib

Thanks, Tony. With Andy's advice, I think I have fixed it now.

I'm coming into the middle of this, but your extended waveform from '3-cycle sine symmetry.asc', over 1.2s is quite different to Andy's. I think you have errors in your PWL that give rise to 3