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Old 12th May 2014, 07:11 AM   #1
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Default LTSpice tutorials and threads

We have a thread here by keantoken at

Things you should know about LTSpice

and the Yahoo Group at

http://tech.groups.yahoo.com/group/LTspice/

I found another one at

LTspice Tutorial | The Complete Course

Trust all newcomers will find these useful.
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Old 13th May 2014, 03:31 AM   #2
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Looks like a well-done effort.

Dale
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Old 27th June 2014, 06:02 PM   #3
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I want output a list power power dissipation and voltage drop across every resistor in my simulation. I would rather do this than click on every element and create a ref voltage point at half the junctures. Also I want this for not just the .op command.

Anyone know how to do this? I assume you write to the log somehow?
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Old 27th June 2014, 09:57 PM   #4
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Quote:
Originally Posted by ashok View Post
We have a thread here by keantoken at

Things you should know about LTSpice

and the Yahoo Group at

http://tech.groups.yahoo.com/group/LTspice/

I found another one at

LTspice Tutorial | The Complete Course

Trust all newcomers will find these useful.

Thank you
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Old 29th June 2014, 09:06 AM   #5
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Old 3rd July 2014, 12:41 PM   #6
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HI,

It is possible to run a simulation. ".four" to get the THD in the log file without the RAW file?

I have three ".step param" and LTspice is very slow from 1000 combination

It is possible do use more than three step ?

thanks
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Old 3rd July 2014, 07:17 PM   #7
jcx is online now jcx  United States
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the fft is calculated from the raw data - have to have it

but you only need the waveforms that you are calculating the fft of: look up the .Save option
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Old 5th July 2014, 03:56 PM   #8
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Hi thanks to your answer but I dont found .save command
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Old 5th July 2014, 04:09 PM   #9
jcx is online now jcx  United States
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LTspice IV>Help> type in keyword .save

to put it on your schematic you have to use the <spice directive> button on the far right of the toolbar
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Last edited by jcx; 5th July 2014 at 04:12 PM.
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Old 5th July 2014, 07:18 PM   #10
jcx is online now jcx  United States
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you do turn off compression of the waveform data which LTspice does by default? - it will mess up higher resolution distortion measurement

for that I use the .option plotwinsize=0 directive on each schematic - if you do it in the control panel you will forget someday
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