Issue link: https://resources.pcb.cadence.com/i/1180526
PSpice User Guide Transient analysis October 2019 530 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. repeating pulse, exponential pulse, single-frequency FM, and piecewise linear waveforms. It also facilitates creating digital stimuli with complex timing relations. This applies to both stimulus symbols placed in your schematic as well as new ones that you might create. The stimulus specification created using the Stimulus Editor is saved to a file, automatically configured into the schematic, and associated with the corresponding VSTIM, ISTIM, or DIGSTIM part instance or symbol definition. Using CheckPoints You can save the state of a transient simulation at different moments as CheckPoints. You can specify any of the CheckPoints as a restart point and rerun the simulation from that point. As a result, you can avoid running a long simulation from the start and run only the portion that is expected to have the outputs of interest. For example, you simulate an SMPS design and determine a convergence error towards the end of the simulation. You can change design settings and rerun the portion of simulation that throws the error instead of running the simulation from the beginning. To use CheckPoints: 1. Specify the CheckPoints. 2. Run the initial analysis. 3. Specify the restart point. 4. Restart the analysis. Specifying CheckPoints You need to define the following for CheckPoints: ■ Simulation time interval: The interval in simulation time between two CheckPoints. The default unit is seconds (s) but you can also specify the time in all standard scale modifiers, such as microseconds (ms) and nanoseconds (ns). ■ Real time interval: The interval between two CheckPoints in real time. The default is minutes (min) but you can also specify intervals in hours (hrs).