Anonymous asked in Science & MathematicsEngineering · 1 month ago

LTSpice - Plotting ?

Instruction: Now change the frequency of oscillation to 1GHz and reduce the transient simulation time to 10ns versus 1ms and re-run the simulation. Where do I go in LTSpice to change the frequency of oscillation, or can this be done as a command in the netlist? 

Previously, the simulation time was 1 microsecond (used .tran 0 1u), so how do I set a time vs another time component?

2 Answers

  • qrk
    Lv 7
    1 month ago

    The frequency is changed in the definition of your source (could be voltage or current source). In LTSpice, right-click on the driving source.

    To change the simulation time, modify the .tran statement. In LTSpice, right-click on the .tran statement.

  • 1 month ago

    Don't know what you have producing an oscillation, but I'll assume it is a simple source.  Right click on the source, and select 'Advanced.  Change the listed frequency to 1 GHz.  OK.  Now click on 'Simulate' and then 'Edit simulation cmd' and open the 'Transient' tab.  Adjust start and stop times to give you display of 10 ns. 

Still have questions? Get your answers by asking now.