Re: Simulating a motor driver in an RLC circuit
Like John, I am confused what your circuit is doing.? You talked about a battery, but I don't see one.? Does one of the capacitors represent the battery? You mentioned using capacitors to "limit the
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Andy I
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#147720
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Re: Simulating a motor driver in an RLC circuit
You have a 24 V 16 MHz battery? Wow! You didn't read the instructions about uploading. Uploads of circuits go into Files => Temp.? Your question is also off-topic, because it is about design, not
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John Woodgate
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#147719
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Re: Making a color scheme permanent
All changes you make to the colours stay until you change them again. Colours and Hotkey settings are stored in LTspice.ini. You could always make a backup of this file in case it ever gets
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Tony Casey
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#147717
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Re: Making a color scheme permanent
Changes you make to colours through Control Panel are permanent until you make a major upgrade. Not all upgrades seem to revert colours to default.
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John Woodgate
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#147716
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Making a color scheme permanent
I dislike the standard colors in LTSpice. all blue, e.g. is hardly legible over dark background. I adjusted a scheme that seems pleasant to me. Can I make this my permanent color scheme? -- Christoph
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Christoph
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#147715
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Re: Multi-cycle current control
By no means unnecessary. I may well be asked about such features in the spectrum. Thank you very much. Your pulse has defined rise and fall times. I suppose my (over-complicated) PWL transitions also
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John Woodgate
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#147714
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Re: 'SYMBOL ind X Y R90' directive in asc file, possible bug in 17.1.9 ?
rodv92, Do you have access to another PC where you can test the same download of LTspice v17.1.9? Do you have a simpler schematic with just one or two inductors to test this with? What is the "strange
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Andy I
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#147713
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Re: Multi-cycle current control
John asked, " What do you mean by 'push harder'? " The short answer is to force the FFT to sample the waveform with many more timepoints.? That makes it slower but potentially more accurate. The
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Andy I
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#147712
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Re: PWL as file (of PWM) make LTSPICE XVII hang
I haven't tried this one, but I ran my MCC with REPEAT FOREVER ... ENDREPEAT for 12 s and it took less time than I could notice. Of course, I wasn't using a .TXT file, which would need to be accessed
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John Woodgate
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#147711
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Re: PWL as file (of PWM) make LTSPICE XVII hang
I suspect this is a function of CPU, disk, perhaps memory, and possibly LTspice/OS version. My figures were: 1m:??? ??? 0.187s 10m:??? ? 1.325s 100m:??? 12.8s 1:??? ??? ??? 126s
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Tony Casey
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#147710
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Re: PWL as file (of PWM) make LTSPICE XVII hang
Thanks for the REPEAT FOREVER experiment. I repaired the algorithm now and took into account the trise/tfall times in the 100% duty cycle case. Possibly i will dispense with the REPEAT option for the
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Christoph
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#147709
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Re: PWL as file (of PWM) make LTSPICE XVII hang
FYI -- For me, it still hangs (or takes a VERY long time) when I include the REPEAT FOREVER ... ENDREPEAT around the PWL file.? I do not have experience with that particular format, so I can't tell
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Andy I
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#147708
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Re: PWL as file (of PWM) make LTSPICE XVII hang
Thanks, indeed, that's the point. I have to do an iteration step in my script. -- Christoph
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Christoph
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#147707
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Re: Triac model request (was: PWM as file make LTSPICE XVII hang)
Anirban asked about finding Triac models. There are several Triac models already in the group's Files.? Finding them might be a challenge, because it's best to search for a part number, rather than
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Andy I
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#147706
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Re: PWL as file (of PWM) make LTSPICE XVII hang
Excuses. I forgot to disable my message signing when posting the corresponding message. ANd the term from LTSPICE's view is PWL; of course. But I'm thinking in "PWM" at the moment since the data form
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Christoph
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#147705
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Re: Triac model request (was: PWM as file make LTSPICE XVII hang)
Anirban, Never "hijack" another message thread, the way you just did. If you have a new topic to send, send it as a NEW MESSAGE with a NEW SUBJECT line.? If you post from the group's website, click
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Andy I
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#147704
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Triac model request (was: PWM as file make LTSPICE XVII hang)
Can any one help me with adding a Triac model in my schematic? I am trying to simulate with ST?AC Switch but couldn't find a spice model for such. Any idea where can I? I am also open with LittleFuse
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anirban.de106@...
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#147703
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Re: PWL as file (of PWM) make LTSPICE XVII hang
Christoph uploaded another file (PWM_less_pulses.zip) but forgot to send a message about it.? The description with Christoph's newer file is: "Still don't find the culprit. It fails on last line.
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Andy I
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#147702
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Edited
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Re: Multi-cycle current control
MCC = Multi-Cycle Control, but also Marylebone Cricket Club, the headquarters of English cricket.
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John Woodgate
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#147701
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Re: Multi-cycle current control
That's how multilevel converters allow for lower switching losses & EMI to divide down V steps to suppress EMI. Sign waves allow higher PF, but if not AC 60 hz line based then not as helpful. Since a
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ron davison
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#147700
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