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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.

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Import transistor into LTSpice

I would like to import this transistor -> RFD16N06LE (datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/67811/INTERSIL/RFD16N06LE.html) into LTSpice; the datasheet has a PSPICE model ...
Dip's user avatar
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1 vote
2 answers
58 views

How to simulate for the Gain of opamp Bridge Differential Amplifier?

Hi experts, I have this circuit, with a bridge connected to an op-amp in differential form, and I want to simulate it for the Gain of the circuit in PSPICE. I have found it's gain by hand, which comes ...
Vibhav shivadeker's user avatar
1 vote
0 answers
17 views

Cannot get correct output in PSpice with the Buck Converter PSpice Transient Model from TI

I obtained the LM76005-Q1 transient model from the Texas Instrument website and imported it to PSpice. The website also provides a Design Calculator software, so I basically use it to determine other ...
Duc Anh Vu Trinh's user avatar
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0 answers
41 views

Why output voltage became an irregular sawtooth shape?

Why does the transient output voltage in PSpice simulation turn into an irregular sawtooth shape? Before today, it was a beautiful curve that could calculate the voltage gain, but suddenly it became ...
CalvinH's user avatar
  • 29
2 votes
0 answers
36 views

PSpice Error: Voltage source and/or inductor loop involving V_Vin

I'm trying to simulate the circuit in Pspice; the first few times it worked. However, I got an error when I tried to create a new page and copy all the circuits on it in order to do some circuit ...
CalvinH's user avatar
  • 29
1 vote
0 answers
53 views

Searching the Spice model of the Liteon optocoupler LTV-817-A

I start learning simulation with "Altium Designer". Unfortunately, i did not find the spice model for the Liteon optocoupler "LTV-817-A". Do you know where i can find it or a very ...
alvaro562003's user avatar
0 votes
2 answers
247 views

Netlisting errors in Pspice "ERROR(ORNET-1163): Unable to create netlist file."

I'm simulating a simple BiCMos Darlington Circuit from the "Analysis and Design of Analog Integrated Circuits" book in Pspice Orcad Software. I don't know why when I'm trying to run the ...
Nima_Ebr's user avatar
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0 answers
44 views

Pspice simulation not working

I am simulating the evaluation board LM5145EVM-HD-20A on Pspice. (https://www.ti.com/tool/LM5145EVM-HD-20A) LM5145 already has the Pspice model for the same but the switches used are not Pspice models ...
Andr7's user avatar
  • 275
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0 answers
30 views

Single stage CMOS amplifier PSpice design

I'm at the very beginning of my electronics adventure and facing the given problem: I'm trying to design a single-ended CMOS amplifier with small signal gain = 15dB at 10kHz. The load capacitance has ...
kazap's user avatar
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2 answers
61 views

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): ...
Major Tom Workshop's user avatar
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78 views

How can I create phase shift (in degress) of analog filters in Pspice?

How can I create phase shift of filters in Pspice? (like red curve) also measure the delay at the output for a band pass filter created cascaded amplifiers.
Electronx's user avatar
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1 answer
91 views

How can I utilize PSpice for ESD simulation?

Issue: I do not know how to build a ESD simulation model in PSpice Orcad capture. Question: What is wrong with the simulation circuit? The simulation result seems like the ESD is not discharging ...
Waterview Dodo's user avatar
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1 answer
100 views

PSPICE non sinking voltage source

In an ideal world, most power supplies have a current sourcing feature but not a sinking feature. In this circuit, you can see that the 15V supply is sinking current. How can I prevent this in Pspice?
Electronx's user avatar
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1 vote
4 answers
251 views

Discrepancy between calculated and simulated cutoff frequencies of a bandpass filter

I'm trying to simulate a bandpass filter with the following components: C1 = 2 µF R1 = 100 Ω R2 = 10 kΩ C2 = 8 nF I calculated the cutoff frequencies using the following formulas: Low cutoff ...
Habib Khan's user avatar
2 votes
1 answer
111 views

VOM617AT SPICE model not working

I downloaded the VOM617AT (optocoupler) SPICE model from the following address: https://www.mouser.com/ProductDetail/Vishay-Semiconductors/VOM617AT?qs=9vrc9xEJKyxW%252B%2FlvaQ%252BSPg%3D%3D I am not ...
nmr's user avatar
  • 133
2 votes
1 answer
76 views

SPICE Error in LM5117 Model in Microcap-12

I am trying to simulate SNVA829 (constant current constant voltage) schematic given in the application report from TI. I downloaded the spice model from TI site and imported it to microcap. When I ...
nmr's user avatar
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1 vote
1 answer
88 views

Can an output voltage of a simple comparator be higher than the input voltage?

This is a simple comparator circuit that I have built for a school project. However, for some reason, the output voltage tends to be higher than the input voltage of 12 volts(accidentally cut out in ...
Hyuntaek Woo's user avatar
1 vote
1 answer
181 views

Circuit diagram potential issue and help regarding debugging

I'm an EE student in my first year, and for my LCA project, we had to buy components and attach all the components of any circuit from the internet. I found one and I've verified my connections many ...
redline125's user avatar
1 vote
2 answers
97 views

LTSpice (Berkeley Spice) Files. WHERE?

I am working on importing spice files into Fusion 360 Electrical. It accepts original spice files. Is this something common, where can I find it, etc. I am used to finding the footprint, symbol, 3d ...
Wes Ellgass's user avatar
3 votes
2 answers
367 views

UCC25800 PSpice model

I downloaded the PSpice model of the UCC25800 from here. I then tried to create a model for LTspice by opening the .lib file within the folder and then creating a symbol in LTspice. But, when I opened ...
Jonathan_the_seagull's user avatar
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1 answer
149 views

Pspice error ERROR(ORPSIM-16362): Name on .ENDS does not match .SUBCKT for LMV751

I downloaded the Texas Instrument's LMV 751(link is here ) opamp in .cir format. Then, I made a .lib conversation and associated it with the model. However, I get an error like ERROR(ORPSIM-16362): ...
Electronx's user avatar
  • 756
1 vote
1 answer
187 views

Voltage Doubler capacitance calculation

I have an astable multivibrator that produces 5 V square wave input to the push pull and the voltage doubler part of the circuit. Now somehow the simulation works at 0.1 uF capacitors for the voltage ...
Jenil Makwana's user avatar
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1 answer
44 views

Adding inductance in order to make AC offset

everybody The task was to introduce a 10 MHz AC signal to the output along with the 24 DC voltage. If I directly connect DC to the circuit, at the output (75 Ohm resistor) I get the straight line =>...
Bushpulbek's user avatar
1 vote
2 answers
330 views

Designing a Charge Amplifier Circuit in PSpice for Piezoelectric Sensor

I'm new to using OrCAD PSPICE 16.6 and need some help. I'm trying to design a charge amplifier for a piezo sensor before building the actual circuit. I've chosen a VSIN source as my input to represent ...
meadow's user avatar
  • 13
1 vote
0 answers
163 views

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 ...
MerOz's user avatar
  • 21
4 votes
2 answers
468 views

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 ...
Debugger_Op's user avatar
1 vote
0 answers
73 views

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 ....
Eli Y's user avatar
  • 91
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0 answers
35 views

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 ...
mouin's user avatar
  • 31
1 vote
0 answers
91 views

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 "...
Northumber's user avatar
2 votes
1 answer
309 views

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)? ...
Maximilian Binzler's user avatar
1 vote
0 answers
125 views

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 ...
Levi Applebaum's user avatar
1 vote
0 answers
65 views

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 ...
Efanatic's user avatar
  • 113
0 votes
1 answer
72 views

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 ...
Kid's user avatar
  • 11
1 vote
1 answer
187 views

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 ...
Kid's user avatar
  • 11
1 vote
0 answers
159 views

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 ...
Nick Jones's user avatar
1 vote
1 answer
97 views

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 ...
mlx11's user avatar
  • 288
0 votes
0 answers
112 views

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-...
Deebanmadhu H's user avatar
1 vote
1 answer
74 views

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 ...
허윤제's user avatar
0 votes
1 answer
84 views

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 ...
bronco0821's user avatar
3 votes
1 answer
3k views

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 ...
Urban's user avatar
  • 153
0 votes
0 answers
35 views

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, ...
jji's user avatar
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0 votes
1 answer
34 views

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?
jji's user avatar
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0 votes
0 answers
48 views

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 ...
Efanatic's user avatar
  • 113
0 votes
1 answer
731 views

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 ...
RGB Engineer's user avatar
0 votes
0 answers
118 views

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 ...
Efanatic's user avatar
  • 113
1 vote
0 answers
72 views

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. ...
Efanatic's user avatar
  • 113
0 votes
0 answers
257 views

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?
Efanatic's user avatar
  • 113
3 votes
1 answer
121 views

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 ...
Mark's user avatar
  • 1,235
0 votes
1 answer
282 views

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 ...
BobaJFET's user avatar
  • 1,012
1 vote
1 answer
136 views

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.
Alan Gabriel Reyes's user avatar

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