Re: plot window
Thanks Andy and Tony. Got it and appreciate the replies. All the best, Alan
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alan victor
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#158833
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Re: plot window
alan, I don't think you can add more than what LTspice gives you already in those plots.? There is no option to change the "Quantity Plotted" on the right axis, so no, you can't "hack" it to add
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Andy I
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#158832
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Re: .MEAS Failure
Indeed, it is troubling to wonder exactly what is meant by asking when a signal is "< 2V".? That happens continuously, after the signal crosses below 2.0 V.? Surely you would not want the .MEAS
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Andy I
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#158831
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Re: plot window
Only for Bode. If you choose the Cartesian format, you can get imaginary. what other options do you want? S-parameters of 1 and 2 port networks are automatically available as plot options if you use
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Tony Casey
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#158830
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Re: plot window
Thanks Tony. Yes, I tried. All I get are selections on GD and phase. For example, in using the s parameter script it would be nice to plot transmission gain s21 and SWR (for which I have a simple
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alan victor
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#158829
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Re: LTspice XVII error work around
#Time-step-too-small
Yes, I did try setting the maximum timestep, and all the other things in the FAQ. I also tried tweaking the circuit (same function, different way of achieving it), but as eewiz has found that just
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Robert
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#158828
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Re: plot window
(This only applies to plots in the frequency domain.) Did you try to change it? If you bring the cursor close to the left axis, its appearance will change to a ruler. You can right-click and you will
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Tony Casey
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#158827
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plot window
Right side of plot window is assigned to phase. Anyway to "hack" and assign right side of plot window to another parameter? Thanks.
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alan victor
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#158826
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Re: LTspice XVII error work around
#Time-step-too-small
While c
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Tony Casey
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#158825
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Re: LTspice XVII error work around
#Time-step-too-small
I have also found that altering the start time of switching regulators can stop singular matrix (SM), time step (TS) and/or femtosecond crawl issues. The MC34036 switcher invariable causes problems if
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eewiz
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#158824
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Re: LTspice XVII error work around
#Time-step-too-small
Well after a day of fiddling about with the values in my .OPTIONS and different integration methods (including the suggestions in the FAQ), I finally got my circuit modelling with just: .OPTIONS
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Robert
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#158823
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Re: LTspice XVII error work around
#Time-step-too-small
5pF is not unreasonable for the circuit I'm modelling, but I've changed this value over a wide range trying to model my circuit and the OP might also want to try that; pick a value (eg 0.5pF) and take
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Robert
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#158822
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Re: .MEAS Failure
On Wed, Feb 26, 2025 at 12:19 AM, Andy wrote: FYI, that is not what I suggested. Leave the Start and Stop (or Left and Right) values alone. Let LTspice figure them out on its own. Change the text in
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eewiz
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#158821
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Re: Stepping MOSFETs
As of 24.1.4, it is still broken. I tried the original method, which failed, before adding the modification suggested by Matthias. An equally serious issue, IMHO, is that the new method is not
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Tony Casey
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#158820
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Re: Frequency dependent common mode inductor
Thank you all for your detail information. I will check later. BR,
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F.an
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#158819
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Re: Stepping MOSFETs
One small FYI -- It is not the AKO: syntax that enables .STEP'ing through MOSFETs or any other devices. The one key thing to remember is that you can only .STEP numbers.? As long as your MOSFET
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Andy I
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#158818
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Re: Issues running LTspice as a batch service
What did you try? And when did you get that error (what were you doing when it happened)? Andy
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Andy I
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#158817
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Re: LTspice XVII error work around
#Time-step-too-small
Did you try some or all of the options listed in the LTspice FAQ (Frequently Asked Questions) file?? Please see the message # 158795 ( /g/LTspice/message/158795 ) that I sent earlier
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Andy I
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#158816
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Re: Stepping MOSFETs
Or alternative to: .model 1 ako: BSP89 .model 2 ako: BSS145 .STEP param M list 0 1 .param Model Select(M,"1","2") is to use: .STEP param M list 0 1 .param Model Select(M,"BSP89","BSS145")
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@HermanVos
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#158815
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Re: Issues running LTspice as a batch service
Did you change your schematic and model references to NOT use the absolute locations? e.g. use ".include bunchOfModels.mod" rather than ".include \Home\Users\MyName\MyLibs\bunchOfModels.mod" A web
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Donald H Locker
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#158814
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