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.
381
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MOSFET Switching losses using SIMETRIX
I want to calculate the switching losses of a SiC MOSFET from STMicroelectronics. The manufacturer provides Spice models that I have incorporated into the Simetrix simulator (I don't have PSpice). My ...
- 21
4
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2
answers
203
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Generation of a high-resolution triangle wave [closed]
I am trying to generate a triangular wave of frequency ~ 100 kHz and V(p-p) = 4.5 V.
Additionally, I also have a tight specification that the value of the peak of triangular wave generated in each ...
- 41
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0
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31
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How do I Rename a .301 file to add a component to Tina-ti?
I'm trying to import a model of an NE5534 to TINA-ti that I downloaded from the TI site. The file has the .301 extension. I'm not really sure how I can use this, because I need a .CIR, .LIB, .MOD, or ....
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pspice equivalent inductance calculation
I want to implement an equivalent inductance circuit with the pspice program.
The circuit-wide inductance in the first picture is 2m I think.
So I implemented and checked the equivalent inductance ...
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0
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42
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Pspice: FFT and distortion in output file does not coincide
I don't understand how Pspice calculate the distortion factor of a signal. I have this 1kHz output signal from an amplifier, and here is the FFT with 10 montecarlo simulation (zoomed):
In the "...
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2
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1
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38
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Parameters for Varistor SPICE model
Can someone explain to me what the "limit" command in the following SPICE model of a Varistor means? Also, what are v(4) and v(8)?
...
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0
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29
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LTSpice Error from Unedited VOH1016 PSpice Model
I downloaded a PSpice model from Vishay for the VOH1016 optocoupler, and without modifying anything, I am getting a pin mismatch error. I opened the .lib file in LTSpice and automatically created the ...
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21
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How to properly import pspice models
Some .lib models have several subcircuits, however when you export a part (.olb) you can only select one subcircuit and export. As shown in the image below, there is MAX2408, SHDN, MAX4265a, etc.
As ...
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1
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36
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Weird spike on simple LED strip controlled using 555 timer and IRF540N MOSFET
I'm trying to create an amateur LED strip simulation using a simple 555 timer stable multivibrator configuration. When I'm simulating the circuit on Pspice and measuring the voltage of the LED, I get ...
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1
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1
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50
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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 ...
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31
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PSpice Capture LI-Ion Battery Model with Behavioral Sources in Netlist
I am trying to use PSpice to create a custom model for a Lithium Ion Battery, specifically this one: An Accurate Electrical Battery Model Capable of Predicting Runtime and I–V Performance
The model ...
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40
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pspice error when coupling inductors
I am trying to simulate a simple transformer circuit in pspice v9.2.
The circuit is based on pspice documentation here
coupling settings:
But running the simulation results in some errors:
...
- 26
0
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0
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21
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Simulating OPT101 in PSPICE for TI
I want to simulate the OPT101 in PSPICE. PSPICE for TI does have that component. But the problem is the module responds to visible light in practical application. How can I impinge light on the module ...
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23
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Errors when importing TI PSpice component to Altium
I am trying to import a PSpice model of the TPS22811 into Altium without success.
What I did:
Download the model from the TI website
In Altium, edit the simulation property of my component and ...
- 61
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40
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PWM gate signals for three phase inverter in Pspice
I am comparing triangular (carrier) wave and sine waves(0-phase U, 120- Phase V,-120- Phase W) to generate varying duty PWM signals.
Gate drive signals for the high and low sides are proper if all op-...
1
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1
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46
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Sound amplifier's pspice simulation result is wrong
I found a circuit of a simple amplifier on the Internet and simulated it with pspice.
I ran a simulation by entering the above circuit and all values, but the result did not come out.
If the value ...
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1
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34
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Floating Nodes in PSpice
Hello I am designing a folded cascode amplifier with only long channel devices. I believe I have set up the schematic correctly but I am getting the following errors:
ERROR(ORPSIM-15142): Node VB1 is ...
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0
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36
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Problem with NMOS simulation in OrCAD
I have to run a simulation on how NMOS transistors work using OrCAD PSpice.
Schematic:
Simulation Profile:
Simulation:
As you can see the problem is that after sweeping VGS from 0 V to 12 V the ...
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3
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1
answer
737
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How to convert encrypted PSpice model into LTspice model?
I want to simulate the model in this link: https://www.diodes.com/part/view/AL8860Q/#tab-details under the header of the Technical documents and Spice Model on the right-hand side. The problem is that ...
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31
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How can I change digclock signals from analog to digital?
I want to get a digital singl from dstm 1,2,3,4.
but it didn't work.
runing time is 8.5ms
The simulation results from analog are similar to the results that you want to see as digital signals.
But, ...
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1
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33
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How can I convert a stim signal from analog to digital?
I want to get a digital signal from dstm1,2,3,4, but I can't.
What's the problem?
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0
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27
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Why is the duration of my transient simulation dictating my settling time in Pspice?
I am doing a step response analysis of a Sallen-Key 2nd order filter. However, I find that the settling time given to me by Pspice using SettlingTime(V(Vout),2%) changes if I change the transient ...
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75
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Sensitivity Analysis Tolerancing in Pspice
I am running a settling time sensitivity analysis for a Sallen-Key Second Order Filter.
I have 4 passive components toleranced (R1, R2, C1, and C2).
When I run the analysis, I get the following Table. ...
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36
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Pspice won't register assigned tolerances
I am trying to assign tolerances of a component using PSpice -> Advanced Analysis -> Assign Tolerances
I add PosTol and NegTol and a flat distribution. When I hit 'OK' or 'Apply', the window is ...
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0
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32
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Model undefined in OrCAD
I made a 31DQ10 diode in OrCAD from SPICE code because OrCAD didn't have one in its library. After exporting it to OrCAD with the model editor and running a simple circuit using that diode I am ...
0
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1
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253
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LTspice can't find definition of model
I am trying to simulate the TPS54331 in LTspice, and I keep getting a "Can't find definition of model MBR340" error message when I run the simulation.
It looks like the MBR340 is a sub ...
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49
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How to accurately simulate a transient Response for a RC circuit with Initial Conditions
I am trying to simulate this circuit with the specified initial condition voltages.
If I don't include the parallel R10, I get a Floating Node Error at Vout and have to include it. When I do include ...
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0
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0
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13
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Which SUBCKT to use (TI ADS9110) Orcad PSPICE
I am new to this simulation, and try to simulate the ADS9110 (TI ADC) using Orcad 17.4.
The TI has the PSPICE Model here: https://www.ti.com/product/ADS9110?keyMatch=ADS9110&tisearch=search-...
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42
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How to model a single-pole, triple-throw switch in PSpice?
I would like to model the following circuit in PSpice:
It is a single-pole, triple-throw switch implementation.
I have tried to model it using Sbreak like below, however, I get a floating node error.
...
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0
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0
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116
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Modelling single-pole, double-throw switch in PSpice
What is the easiest way to model an ideal single-pole, double-throw switch in PSpice? And a single-pole, triple-throw switch?
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3
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1
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82
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Simulation of log configuration for op-amp
I'm quite new to pspice and I'm trying to simulate the dc transfer function of an op-amp in log configuration.
Here my circuit. I'm using Kicad and ngspice:
R3 and R4 are there because it gave me ...
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1
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95
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How do I import this OPA313 PSpice model into LTspice?
It's been asked quite a few times how to import PSpice models into LTspice but none of the methods seem to apply to this particular model from TI. I really don't understand what all these files are ...
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81
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Bitline is not working correctly (6t cell sram with sense amp and precharge)
After simulating 6t ram with sense amplifier and precharge, bit line value is fixed to 1.5v. How can i avoid this? Using pspice to simulate.
4
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103
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Is there any reference to design a 4*4 bit ram only using transistors
I'm currently doing a project and would like some help. I need to create a 4-bit 4-word RAM using PSPICE. (I'm both new to the PSPICE program and new to the topic of RAM)
I currently have successfully ...
0
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0
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63
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Create a PSPICE library from a schematic
I need to simulate a part in OrCad PSpice, which doesn't have a pspice model anywhere. However, manufacturer have provided a gate level design of the IC on the datasheet. Using which I have ...
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27
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What is the difference between the high value and 5Vdc with PSPICE?
I designed it as 5vdc because there is 1 in the input of K in the circuit diagram, but the pspice result was not released. But when you run an interval for 5 seconds, digclock gives a value of 1 to ...
0
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1
answer
101
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Problem about output Q does not correct logic of jk flip-flop but it's look like logic of nand gate
I'm try to simulation jk flip-flop on Pspice follow pic.
Use tsmc180nm model to nmos and pmos
...
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0
answers
77
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What should I fix in my settings in PSpice for simulation?
I am trying to build a D flip-flop from CMOS NAND gates.
This is the CMOS circuit to be built with NAND gates:
I can simulate NAND gate logic like this, and it works:
1 0 = 1,
0 1 = 1,
0 0 = 1,
1 1 = ...
0
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1
answer
130
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I can't get output voltage from flip-flop in PSpice
I'm simulation a flip-flop in PSpice, but it doesn't show an output voltage.
This is testing a flip-flop; look at Q output. It shows X(undefine). I don't know if I'm missing anything in PSpice.
1
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1
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82
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Is there any problem in my netlist code?
I'm analyzing the BS170 MOSFET for this given circuit. I wrote this netlist code.
...
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1
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How can I DC analyze these values in netlist simulation
For my lab report I have to DC analyze a circuit for these specific VDD values.
Is there any way to get simulation output for just these values? Because when I write
.DC VDD 0.2V 10V 0.2V or .DC VDD 0....
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1
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105
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PSpice model to LTspice (SSM6L09FUTE85LF transistor)
I can't convert a specific transistor model from PSpice to LTspice. Maybe someone has ideas on how to do it?
Transistor: SSM6L09FUTE85LF Toshiba
https://eu.mouser.com/ProductDetail/Toshiba/...
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1
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110
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Bad voltage output using the TI supplied TPS2557 TINA-TI to PSpice Conversion in LTSpice
I pulled the converted PSpice file for the TI TPS2557 Power Switch directly from the TI website. Copied the contents into LTSpice and created a symbol using the LTSpice auto symbol creator. Verified X ...
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1
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215
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How do I set Ron and Roff for SBreak switch in PSpice or OrCAD capture?
I am using SBreak but when I click in the properties I only see: Model, REDFES, TEMPLATE, SIMULATION ONLY, and PKGREF.
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1
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143
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Op-amp wrong output
I have imported a Spice model of an op-amp from the link below and tried to plot the same outputs, but I am getting different results.
Link to the Spice model I used and the desired plot: https://www....
user316666
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1
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166
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A high-voltage logic part in PSpice
I'm trying to build the following part of a circuit:
I'm wondering what the part is that has "HI" written on it; I couldn't find it in any PSpice guide.
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1
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148
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Unknown state with 74193 IC (PSpice simulation)
I'm trying to design a frequency divider (by 7) in PSpice using a 74193 synchronous 4-bit up/down counter.
When simulating I'm getting the following graph:
I'm not sure why the state is unknown (...
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2
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2
answers
243
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How do I know what each pin represents in a Spice model of an op-amp in OrCAD?
I have imported a Spice model of an op-amp into OrCAD, but the part symbol is different from what I am used to, and I don't know what pins 4, 5, 8, and 11 represent here.
Link to spice model I used: ...
user316666
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1
answer
77
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Why does PSPice invert this AC current?
I'm running a simulation on a simple circuit in PSPice 9.1:
This voltage supply is set to provide a 1V AC signal with a frequency of 60 Hz. As the load is only resistive, the current should not have ...
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217
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PSpice for TI - adding a library
I want to use a transistor: Q2N2222, Which exists in the bipolar library in pspice. (I'm using pspice for TI)
however. I have found ZERO guides on how to actually add a new library to pspice. every ...
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