Re: LT refuses to display current and power for two components in ckt
Update: I've f6 copied the entire schematic into a new blank document. This copy shows current and temp for one of the two affected transistors. Tried copying the copy into yet another blank document,
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dcorner1953@...
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#128212
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Re: LT refuses to display current and power for two components in ckt
I meant to add, I've completely isolated the quadrant from the rest of the circuit and tested it on its own load. It is identical to the upper right quadrant, which has no problem.
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dcorner1953@...
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#128211
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LT refuses to display current and power for two components in ckt
I'm designing an H bridge driver in LTSpice 17.0.19.0. The bridge is working very well, but LT refuses to bring up the current meter or thermometer icons for just two components in the entire circuit,
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dcorner1953@...
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#128210
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Re: Resonance splitting
" I have seen advice not to use the internal R in the inductor for reasons that are not clear to me ... " I am not aware of a reason not to use the internal R in the inductor.? I may be forgetting
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Andy I
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#128209
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Re: Resonance splitting
-- it shows little evidence of .STEPping (the .STEP command is not missing, Right. I was trying to modify it exactly as instructed. I see that. Good to know.
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david vanhorn
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#128208
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Re: Resonance splitting
Our replies have gotten out of sync, and occasionally not 100% correct.? But indeed, as John (more or less) noted, David's 'D' unmodified schematic: -- runs without errors, but -- it shows little
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Andy I
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#128207
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Re: Resonance splitting
Your D upload runs but without stepping K because the .STEP command is missing. ====================================================================================== Best wishes John Woodgate OOO-Own
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John Woodgate
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#128206
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Re: Resonance splitting
David, I don't know if this helps with the original question. Long ago I knew of the effect where the resonance splits depending on coupling, but in a different context: using LC filters in RF tuned
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Andy I
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#128205
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Re: Resonance splitting
I am now seeing the splitting. No idea why my d upload was giving you guys problems though, i downloaded that file and it ran here without errors. Anyway thanks, issue closed
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david vanhorn
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#128204
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Re: Resonance splitting
I hope my upload has sorted this and we can close the thread. ====================================================================================== Best wishes John Woodgate OOO-Own Opinions Only
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John Woodgate
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#128203
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Re: Resonance splitting
John asked, " How can it give identical runs with .step param K list 0.0001 0.01? " Because the parameter K was not used anywhere.? It's just a dummy parameter, where the entire circuit is unaffected
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Andy I
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#128202
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Re: Resonance splitting
John wrote, "... without stepping because you deleted K L1 L1 K. When you add that back in, to get the steps, it doesn't run. I don't know why, or why the error log has those weird expressions. "
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Andy I
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#128201
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Re: Resonance splitting
How can it give identical runs with .step param K list 0.0001 0.01? But I see why I can't get version D to run with the K expression added. I forgot the curly braces.? Now it runs and shows double
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John Woodgate
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#128200
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Re: Resonance splitting
Yes, of course it runs, but without stepping because you deleted K L1 L1 K. When you add that back in, to get the steps, it doesn't run. I don't know why, or why the error log has those weird
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John Woodgate
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#128198
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Re: Resonance splitting
DesplitterD.asc runs OK for me.? I don't know what problem John sees, but I don't have that.? I think his simulation got corrupted. But the stepped parameter K doesn't DO anything.? It gives you
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Andy I
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#128197
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Re: TPS43061 simulation not working right
The nice thing about digital computers, is that they always give us the same results to the same calculations with the same inputs.? There is no possibility of having a different answer, unless
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Andy I
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#128196
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Edited
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Re: Resonance splitting
Ok, I downloaded the D version from Groups, and the ONLY change I made was to name it DesplitterD1 so it wouldn't overwrite my other file. It runs. I'm running 17.0.220, and I sync'd the release a
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david vanhorn
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#128195
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Re: Resonance splitting
Without the step K command it runs but only one run of course, no stepping. ====================================================================================== Best wishes John Woodgate OOO-Own
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John Woodgate
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#128194
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Re: Resonance splitting
Very odd.. I just ran it here, and I ran it before I sent it.. Circuit: * C:\Users\Dave\Desktop\DesplitterD.asc .step k=0.0001 .step k=0.01 Date: Fri Feb 26 14:18:44 2021 Total elapsed time: 0.401
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david vanhorn
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#128193
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Re: Resonance splitting
Andy: Ok, absolutely equal I agree is vanishingly small probability.? Can we agree that say 1% difference is achievable?
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david vanhorn
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#128192
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