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Old 17th February 2014, 03:54 PM   #1
tvrgeek is offline tvrgeek  United States
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Default LTSpice update broken?

The latest update to LTSpice seems to have a bad bug. Every time it saves a file, it replaces the coils with some transformer not connected. More if I figure out what is going on.

V420i
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Old 17th February 2014, 04:00 PM   #2
tvrgeek is offline tvrgeek  United States
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It changes the symbol and it is not lined up. Shows an iron core. No idea what it does to the model.
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Old 17th February 2014, 04:28 PM   #3
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I'm using 4.20h, Dec 20 2013 version.
I'm not seeing any troubles saving coils (inductors).

Terry
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Old 17th February 2014, 05:05 PM   #4
Mooly is online now Mooly  United Kingdom
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I'm using 4.20i

Give us a coil model number and I'll try saving and opening it.
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Old 17th February 2014, 05:34 PM   #5
esgigt is offline esgigt  Netherlands
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USing 4.20i too... did not encounter the bug you describe.
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Old 17th February 2014, 05:53 PM   #6
tvrgeek is offline tvrgeek  United States
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Old schematics. Used the "default" coil and only had a value set. I think they may have changed the default. Now I need to go look up to see which of their coils is an air-core.
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Old 17th February 2014, 06:10 PM   #7
tvrgeek is offline tvrgeek  United States
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Selected a coilcraft with high Ipk (12A) , low ESR. Guess it is an air. Pops back into circuit, so it seems they changed the default. As their intended use is for switching supply designs, it makes sense their default would be iron core.
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Old 17th February 2014, 06:57 PM   #8
tvrgeek is offline tvrgeek  United States
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It CHANGED the darn coil every time it opens. This seems to be a BUG. I will head over to Linear Tech.
Sent in a bug report

Last edited by tvrgeek; 17th February 2014 at 06:59 PM.
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Old 17th February 2014, 06:59 PM   #9
Mooly is online now Mooly  United Kingdom
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What coil are you using from the list of possibles ?
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Old 17th February 2014, 10:38 PM   #10
tvrgeek is offline tvrgeek  United States
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Got an answer from LT team. Poof. fast.

Somehow I would up with an extra symbol in the top directory it was using rather than the one in the symbol directory. Killed it and all is well. I have no idea where it came from.
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