Electrical – How to step this voltage source in “transient analysis” in LTspice

ltspice

I try to step a DC voltage source in transient analysis in LTspice.
Below there are five almost identical biased transistor circuits and plots for 1 sec duration. The only difference is that their DC bias is is increased from 500mV to 900mV with 100mV increments. So this DC bias is the DC voltage source in the question(V1, V2, V3, V4, V5). I know that such step is possible in DC analysis.

enter image description here
(left-click to zoom)

As you see above, to obtain those plots I had to create five circuits.

Is it possible to obtain the same plots above by using only one circuit and writing a SPICE command in LTspice?

Best Answer

Right clock on the DC voltage source and select Advanced. Then select PWL(t1 v1 t2 v2...) Select Additional PWL points. Fill in the table with your desired voltage steps and times. See example below:

PWL Table

Here is another approach