Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [pspice]

For questions about the PSpice variant of the SPICE ("Simulation Program with Integrated Circuit Emphasis") analog circuit simulator. Always use in conjunction with the "spice" tag.

For questions about the PSpice variant of the SPICE ("Simulation Program with Integrated Circuit Emphasis") analog circuit simulator. Always use in conjunction with .

See Wikipedia's articles on PSpice and SPICE for more information.

392 questions
3
votes
1 answer

"persistent" error in pspice simulation

I created the following circuit in Pspice: In the simulation profile I made sure that all flip-flops are initialized to 0. When I run this simulation I get the following error message: I just can't figure out what is the problem... can you help me…
noamgot
  • 133
  • 4
2
votes
1 answer

capture cis transient convergence problem

I have this schematics and I want op amp to saturate but I am not able to finish simulation due to convergence error. I have tried add 1 ohm resistance,1p capacitance to circuit, reduce ABSTOL to 10uA, reduce RELTOL to 0.1 ohm, reduce minimal step…
andz
  • 254
  • 1
  • 12
2
votes
1 answer

Unable to set the initial conditions for a capacitor or an inductor in PSpice?

I'm new to PSpice and working on setting up my initial conditions for a capacitor and an inductor in a series RLC circuit. However, whenever I try to set up my initial conditions, the IC box is greyed out and I can't edit it. The circuit I'm trying…
Rish
  • 159
  • 2
  • 8
2
votes
1 answer

Voltage across capacitor is shifted -20 VDC in PSPICE simulation

I tried to create a simple simulation in Orcad PSPICE. For some reasons, the measured AC voltage across the capacitor C is shifted -20 Vdc. Its value should vary in the range [-20V, +20V] as far as I'm concerned. Very appreciate if anyone can give…
dejoker
  • 56
  • 5
2
votes
1 answer

Strange plot in PSpice Student after reducing maximum step size

I have run 10m simulation in PSpice Student 9.1 with Analysis Type: Time Domain (Transient) with max step size 100u and I get such plot: I wanted my plot to be more smooth so I have changed max step size to 100n and to my surprise plot looks like…
Al Bundy
  • 696
  • 5
  • 22
1
vote
1 answer

PSpice circuit simulation does not seem to be working and I'm not sure why

I'm trying to simulate a differential amplifier circuit with an NMOS current source on PSpice. Even though all the connections seem right to me the simulations don't work when I run them. Below is the circuit and the error message I get. I would…
Kid
  • 11
  • 2
1
vote
1 answer

Why is there an overflow? | PSpice For TI2020 | PID controller (unfinished)

the problem I have another problem with PSpice for TI2020. I want to build a PID controller using operational amplifiers. Up to the red line drawn, the circuit works as it should. However, if I add the op amp with a non-inverting basic circuit (U6),…
Daniel
  • 333
  • 1
  • 8
1
vote
1 answer

Pspice error for vpulse

why am i not getting square wave in vpulse pspice?What could have been the possible error?
Arthur Pendragon
  • 11
  • 1
1
vote
1 answer

PSpice OrCAD simulation

I want to get an impedance vs frequency graph for a capacitor in AC sweep analysis. I saw that there is an 'Impedance(1,2)' as shown in this picture in the Modify Trace window under Plot window templates: Can someone tell me how to use this and…
Rakshitha
  • 13
  • 3
1
vote
1 answer

Gate Capacitance in PSPice

So according to a book example (See Digital Integrated Circuits by J. M. Rabaey example 3.9) I'm trying to determine the Gate capacitance using the following schematics scetch: This comes directly from the book, however, a simulation gives me the…
Mart
  • 326
  • 3
  • 15
1
vote
1 answer

How can I sweep duty cycle of a pulse train in PSPICE?

I have found some solution in LTspice but Im wondering if anybody could achieve to sweep duty cycle of a fixed freq. pulse in PSpice. Is that possible? I tried the following but it didnt work:
floppy380
  • 1,845
  • 7
  • 38
  • 74
1
vote
1 answer

Running an AC sweep in PSPice

I'm trying to do an AC sweep of the following circuit: But I'm getting the following error: *Analysis directives: .AC DEC 5 0 1000000 ----------$ ERROR(ORPSIM-16103): Invalid value .OPTIONS ADVCONV .PROBE64 V(alias(*)) I(alias(*)) W(alias(*))…
Jack
  • 21
  • 1
  • 1
  • 4
1
vote
1 answer

Cursor search commands in probe window on PSpice

I'm using PSpice, and when I am in the probe window, and I want to mark a specific point in the probe window, I'm using Trace->Cursor->Search Command and the I'm typing sf le (10) This command searching for the closest Y value to the cursor that…
Matt. St
  • 135
  • 2
  • 7
1
vote
1 answer

PSPICE temperature simulation of a resistor

I am using OrCAD/Cadence PSPICE Lite 16.6. I am trying to do a temperature analysis of a circuit. In particular a resistor. simulate this circuit – Schematic created using CircuitLab Now, the temperature is from -30 to 60 Celcius. I understand…
Board-Man
  • 1,929
  • 1
  • 27
  • 75
0
votes
2 answers

Circuit explanation (PSpice modeling)

I am trying to simulate sound amplifier schematics that I found on the internet. R12 is used in place of an 8 ohms loudspeaker. For some reason it is not working as expected (please see graph below): top part of the sine wave is clipped, also there…
Major Tom Workshop
  • 21
  • 1
1
2