On circuits wiht high switching frequencies, fast rise times, large different time constants in a circuit or on mathematically described circuits, convergence problems of a Spice simulator can appear. Thereby the simulation can have a break. PSpice has different internal simulation processes a vailable and is able to adapt the internal simulation parameters in a way that such breaks by internal process changes can be avoided and correct results can be calculated and displayed.
Digital and analog circuit parts can be mixed in any order in a PSpice simulation. The timing und propagation delay (min, max, typical, worst case) can be indicated for digital circuit elements. PSpice is able to understand the behavior of A/D converters and abstract control logic can be integrated in analog circuits. For this you can choose different sources as stimuli. The Time–to–Clock–Out (TCO) behavior can be saved in the model.
A complex locus with real and imaginary part can be shown frequency dependet. Bode diagrams show the amplitude and phase response of a circuit and the phase margin is dedected before a system can have a commutation failure. A wide variety of types of noise of all componants ( thermal, uncorrelated, flicker noise and shot noise) can be dedected using the function AC Sweep.
Analog Behaviour Modelling is used to discribe abstract eletrical systems as e.g. motors, power electronics, operational amplifiers, torques of mechanical systems as well as other analogy systems, like the angular frequency of a electric controlled motor subject to the friction. With Laplace blocks (e.g. PID controller) complex regulating systems can be built and so evaluate the stability criterions of the control system.
Using Magnetic Part Designer you can describe magnetic componants in a simulation model. Here the values (e.g. number of coils, manufacturer of the ferrite material, wire gauge, maximum currents etc.) are read in via a wizard. By the PSpice simulation you just choose convenient variants. Afterwards different cores (EI, UI) of the library can be contrasted in an analysis. So you get with only a few steps a transformer model with saturation behavior.
In the power electronics unregulated electrical energy is implemented in the needed form of energy of the respective consumer or actuator with exactly defined streams, tensions and frequences. The behavior of the P/N junction or the MOSFET technology is simulated. Therefore it is possible to forecast also DC–DC converters, IGBTs, thyristors and switched mode power supplies (SMPS) from the behavior and so to dimension and optimize the curcuit.
A Frequency Response Analysis is particularly used to obtain a phase response of a non-linear circuit which switch voltages and operating points change simultaneously. With this analysis transient signals are injected into the current loop to be examined. And the frenquency parts are displayed according to a Fourier analysis in an Gain/Phase Response Plot. This solves the problem of linearization of the AC Sweeps. In a time simulation e.g. various amplification factors can be seen with FRA. An example you will find in your installation under ..\tools\pspice\capture_samples\anasim\fra.
After a simulation the results can be visualized in the PSpice Waveform viewer. Since PSpice stores all values of the complete simulation, other measure points or function data can be selected without the simulation needs to be restarted. With the Probe statement support P() additional parameters can be integrated into the DAT file, e.g. Probe64 P(FREQ) takes the FREQ parameter in the DAT file.
As of 16.6 QIR5 Release Pspice models can be created very fast by means of values of a data sheet. Via different inpunt masks few required component parameters are queried, so that a model can be quickly generated. Optimized input masks are available for: condensators, coils, circuits, transformators, sources, TVS, PWL, Zener diods, VCO,...