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Wait - are you using .measure commands?? Is that where you see things slowing down? .MEAS commands are indeed processed after the simulation is over. Andy

Unfortunately, I can not use .STEP command. My main problem is finding multi-port s-parameters of a given circuit. LTSpice only supports 2-port s-parameters. To measure 4-port s-parameters I need to

Can you re-do your sims using .STEP ?? Thus avoiding PyLTspice? Andy

I made the schematic in LTspice and it runs very fast. The netlist is: * C:\Program Files\ADI\LTspice\Draft1.asc V1 N001 0 AC 1 0 L1 N002 N001 10? C1 N002 0 1p R1 N002 0 50k .ac dec 150 10meg 100G

I have no familiarity with PyLTspice.? But you say most of the time is spent doing something other than the LTspice simulation itself.? Which means the cause is something other than LTspice. Maybe

eetch00, I obtained this from viewing LTSpice netlist. Nevertheless, I tried changing it after your comment and results remained the same

You can confirm the netlist format by simulating it directly in LTspice without using python. It won't run correctly formatted the way you've shown. See my previous post.

try the developer.? GitHub - nunobrum/PyLTSpice: Set of tools to interact with LTSpice. See README file for more information. | | | | | | | | | | | GitHub - nunobrum/PyLTSpice: Set of tools to

The circuit may have some unreasonable problems, however, I am not plotting anything, nor am I trying to obtain any meaningful data from this circuit. This is a dummy circuit that represents the

I see. but there are problems with this simple circuit. Using a linear sweep with such a wide range doesn't result in a useful frequency response plot. A decade sweep is much better. Also, the 50 ohm

On Sat, Mar 29, 2025 at 12:01 PM, <davitkharshiladze26@...> wrote: > > Hello Everyone, > > I am trying to simulate very simple circuit using PyLTSpice. However, > simulation takes too much time.

I am trying to automate circuit simulation process. This is a simple representation of my large problem.

I don't know anything about PyLTspice, but why don't you use LTspice directly? Are you using an OS other than Windows, MAC or Linux?

Hello Everyone, I am trying to simulate very simple circuit using PyLTSpice. However, simulation takes too much time. It takes 1 second for the simulation to complete. Even when I increased the

Eagles? Tony, well... Desperado ( https://genius.com/2111295/Eagles-desperado/Desperado ) , woah, you ain't gettin' no younger Your pain and your hunger, they're drivin' you (

My last message didn't format very well, too early in the morning...obviously it is a sixth order polynomial, x6 means x**6 etc

Always good to see examples and I know know more about tables. I was idly playing with your data and whilst not really relevant to the discussion here but if you paste your data into Excel, graph it

Can be done easily with a behavioral current source. The equation can be defined by: I = V(Vi,Vo)/R Where Vi and Vo are the voltages across the current source. Example netlist with a sweep: B1 Vi Vo I

Yeah. LTspice is clever about that. The parser must (silently) perform a number of iterations to determine the required evaluation precedence. I don't know whether that's generic in SPICE - I suspect

Bingo! Thanks, Tony! I ended up with: .meas T1 TRIG V(N0)=2.25 TD=3u RISE=1 TARG V(Nx)=Vtarg TD=3u RISE=1 .meas VNx MAX V(Nx) FROM {5*Pw} TO {25*Pw} .meas Vtarg param 0.9*VNx Which returns the same as