Re: round () function on AC measurements does crash on old versions and just delivers zero at latest version
On 20/05/2025 15:51, oerni via groups.io wrote: > using round to get better readable results (e.g. mV's with one further number after the dot) in the measurements does not work for me in AC
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Tony Casey
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#160516
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Re: Execute .meas file
Dave, I think you are making this more complicated than it is, by doing it that way. Unless you have your LTspice configured to "Automatically delete .RAW files", uou should never need to make a copy
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Andy I
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#160515
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round () function on AC measurements does crash on old versions and just delivers zero at latest version
using round to get better readable results (e.g. mV's with one further number after the dot) in the measurements does not work for me in AC measurements while it works fine for TRAN. running .AC the
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oerni@...
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#160514
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Re: Execute .meas file
Dave, When you loaded the schematic, and View > Visible Traces didn't work, was the .RAW file in the same place? That would make LTspice unable to find it.? That's the only thing I can think of. Andy
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Andy I
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#160513
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Re: Execute .meas file
To follow up, loading a .raw file directly then works to execute .meas files. So, answering my original question, after a complete Run, save (in Settings) the raw file(s), or make a copy, while the
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Bell, Dave
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#160512
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Re: Execute .meas file
I closed LTspice along with the schematic, then opened just the sch. View, either by right-clicking the schematic, or from the View menu option, has Visible Traces grayed out until a Run. I haven¡¯t
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Bell, Dave
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#160511
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Re: Execute .meas file
You can also open a .RAW file directly into LTspice, and see all your waveforms, and maybe run .MEAS scripts.? But doing it that way, they won't be associated with a schematic.? To re-establish the
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Andy I
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#160510
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Re: Execute .meas file
Thanks, Andy! 1. Yeah, the .RAW is what I thought. But if I rename that with a different extension, it still runs the script. In the Help. there¡¯s a hint that it can also derive data from the Plot.
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Bell, Dave
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#160509
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Re: Execute .meas file
I am not in the habit of running .MEAS scripts, so my answers may or may not help Bell, Dave wrote: I would not think you need any temporary files.? I could be wrong, but I think you need only the
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Andy I
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#160508
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Re: LT1680
I am not employed by Analog Devices, but I can say with high confidence that the LTspice LT1680 model is correct and it simply did not include those two pins because they aren't needed in the
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Andy I
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#160507
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Re: LT1680
I mentioned this already, but I think it is worth a bit more elaboration.??John Woodgate wrote: SPICE/LTspice simulations are never meant to constitute the full and complete design database for a
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Andy I
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#160506
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Re: LT1680
Andy I I studied the datasheet, I know that it is my final responsibility to make design choices according to my skills, but I believe that the community serves the purpose of sharing problems and
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Pietro
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#160505
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Re: LT1680
Oops, my reply was sent prematurely.? I started writing: I concluded that "Iavg" and "Iave" were probably the same, and that "Vfb" and "FB" are probably the same.? But again, it is your job to
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Andy I
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#160504
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Re: LT1680
Who is the design engineer?? If that is you, then you must be the master of your design.? You need to take full responsibility for understanding what the circuit does and how every part of it works.
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Andy I
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#160503
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Re: LT1680
Luned¨¬ 19 maggio 2025 alle 23:12, John Woodgate ha scritto:
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Pietro
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#160502
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Re: LT1680
S¨¬, scusa. Mi sono confuso. *[Translation to English by Moderator:]* Yes, sorry. I got confused.
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Pietro
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#160501
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Edited
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Re: LT1680
Your upload is helpful, but you must post in English. Google Translate is your friend. -- This email has been checked for viruses by AVG antivirus software. www.avg.com
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John Woodgate
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#160500
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Re: LT1680
LTspice is not meant for circuit layout.? When it is used for that, it MUST be assumed that "touch-up" is probably needed. Andy
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Andy I
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#160499
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Re: LT1680
Sorry, but please use English only in this group. FYI, many op-amp's have Balance adjustment pins, but most of their SPICE models omit them.? Most circuits that used them did not connect to those
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Andy I
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#160498
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Re: LT1680
That is OK for simulation: commoned pins and NC pins can be left of the symbol and model, but it is a problem when passing data to a PC layout app. -- This email has been checked for viruses by AVG
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John Woodgate
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#160497
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