MicroSim PSpice is a simulation program that models the behavior of an analog circuit. Used with MicroSim Schematics for design entry, you can think of PSpice as a software-based breadboard of your circuit that you can use to test and refine your design before ever touching a piece of hardware.
Procedure For simulation in schematics
1. Draw the schematic of the circuit.
2. Change the values of the components and sources.