.STEP -- Parameter Sweeps

 

This command causes an analysis to be repeatedly performed while stepping the temperature, a model parameter, a global parameter, or an independent source. Steps may be linear, logarithmic, or specified as a list of values.

 

Example: .step oct v1 1 20 5

 

Step independent voltage source V1 from 1 to 20 logarithmically with 5 points per octave.

Example: .step I1 10u 100u 10u

 

Step independent current source I1 from 10u to 100u in step increments of 10u.

Example: .step param RLOAD LIST 5 10 15

 

Perform the simulation three times with global parameter Rload being 5, 10 and 15.

 

Example: .step NPN 2N2222(VAF) 50 100 25

 

Step NPN model parameter VAF from 50 to 100 in steps of 25.

 

Example: .step temp -55 125 10

 

Step the temperature from -55ºC to 125ºC in 10-degree step. Step sweeps may be nested up to three levels deep.