How can I make LTSpice simulation faster?

How can I make LTSpice simulation faster?

To measure the effects of your changes, review the simulation time in the LTspice error log (Ctrl + L). Reduce the time required for switch mode power supply (SMPS) simulation by shortening the voltage ramp of the output by changing the value of the soft-start capacitor.

Is LTSpice hard to learn?

LTspice is node unlimited, incredibly easy to learn and can be used to simulate most of the analogue components from Linear Technology as well as discrete and passive components. It is exceptionally good at simulating switched mode power supplies (dc/dc converters). Models from other manufacturers can also be imported.

How do you run a simulation on LTSpice?

Simulate – To run a circuit, select “Simulate” from the file menu and “Run” or click the run button. Select the appropriate tab for simulation and enter the simulation options and click “OK”.

How do you specify the simulation Tran time in LTSpice?

tran) Setting. Click “Simulate”-“Edit Simulation Cmd” in the menu bar to open the “Edit Simulation Command” screen. Select “Transient” and enter “10 m” for Stop time.

Is LTspice better than pspice?

Models for extreme corner cases (e.g. only Pspice as a nonlinear inductor model, Hspice has some unique MOS/BJT models for leading edge geometries, LTSpice is strictly not based on UCB SPICE 3 but the other two are, which both provides advantages and disadvantages in terms of simulation repeatability of models.

What is time step LTSpice?

“Time step too small” is usually the consequence of a “shock” or discontinuity on your models. It indicates that the solver could not achieve the desired voltage/current precision with a reasonable time step in the differential equation solver. – Edgar Brown Nov 10 ’18 at 0:51.

How to reduce the simulation time In LTspice?

Reduce the Amount of Transient Analysis Data. Normally, LTspice transient analysis starts at time = 0. You can edit the .trans simulation command’s “Time to start saving data” to delay saving until a later time of interest, thus decreasing your overall simulation time.

What should time be for LTspice transient analysis?

Normally, LTspice transient analysis starts at time = 0. You can edit the.trans simulation command’s “Time to start saving data” to delay saving until a later time of interest, thus decreasing your overall simulation time. Of course this assumes you do not need the initial data points, which are not saved.

Why does LTspice use a compressed binary file format?

To maintain fast simulation speed, LTspice uses a compressed binary file format that allows additional simulation data to be quickly appended on the fly. However, once the simulation has completed, this format is non-optimal for waveform viewing.

How much RAM does it take to run LTspice?

I have an i5-9600k @4.7GHz w/16GB ram, and even the basic things I run in LTspice take a long time, for a few hundred milliseconds of transient analysis. Does LTs benifet from the CPUs with hyperthreading ?