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Questions tagged [orcad]

OrCAD is an EDA (electronic design automation) suite that includes schematic capture, PCB layout and several other related modules.

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Reduce AC voltage - op-amps circuit

I´m trying to reduce the amplitude of 160 VAC peak to peak to 2 VAC peak to peak using op amps with virtual ground. I've made this circuit but it isn't working. My offset voltage have to be equal to ...
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23 views

OrCAD Capture quit unexpectedly

I'm doing a project using OrCAD. I reopened the .opj file that I saved last time and didn't see the schematic I was working on last time. So I clicked on the page1 icon under schematic1 and capture ...
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34 views

What is the binary format of the OrCAD .OLB files?

I want to auto generate .OLB files for my own components, so I need to either use Orcad Capture scripting, or alternatively write the binary .OLB files myself. Is there anybody that have seen a ...
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1answer
26 views

How to show or print all the parts in an OrCAD library (OLB) file?

I have a .OLB file for OrCAD schematic where there are multiple part in. I an open the .OLB file using File => Open => Library, and I can also successfully place parts in a design. From previous ...
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28 views

transient output file option in pspise

I want to save my simulation result in capture every 100us and export them in text file. I went to simulation settings>Analysis>output file option and changed print values in output file every 100us (...
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1answer
33 views

Sine source outputting wrong signal

I was trying to simulate a circuit on Capture CIS lite, but I kept getting an output signal which was nothing like I expected. When I tried putting the probe on the sine source, it seems like the ...
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44 views

Orcad Schematic Capture. Instances vs Occurrences

Using Orcad capture to create a multi-page hierarchical schematic I used the "Annotate..." option to renumber all parts. First set the them to "?" then incrementally update them. However, after this ...
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4answers
54 views

What is a fast built in op-amp to use in OrCAD Pspice Capture? Or how can I design one?

I am trying to simulate a 100 kHz FitzHugh-Nagumo oscillator in OrCAD Pspice capture (this paper gives the motivation for the configuration, but is for a 180 Hz oscillator, https://ieeexplore.ieee.org/...
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48 views

Simulate H Bridge in Pspice

I want to simulate an H-bridge in pspice but it doesn't work and Z3 and Z6 (High side and low side IGBTs) can not drive at the same time. Here is my schematic
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1answer
38 views

Interpretation of Time Domain simulation output

I have the following circuit and I want to know the voltage on each node and the current on each loop. I've run the Time Domain simulation (I'm not sure of the differences between this and Bias Point ...
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1answer
27 views

How to Reconfigure a Current Sense Amplifier Pspice Model

I downloaded the .lib Spice library for the MAX4172 and imported it into OrCad, available from: https://www.maximintegrated.com/en/products/analog/amplifiers/MAX4172.html/tb_tab2 The library file ...
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2answers
58 views

Amplifier MOSFET (25m - 5V)

I dont know how to amplify a signal of 25mV to 5V amplitud signal ((frequency of audio input cell phone)). I have this circuit so far:
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3answers
70 views

Integrator (Op amp) Simulation OrCAD

I'm working on in a integrator op amp and actually i make the desing in a breadboard and is working but in time of simulation is like there is not voltage in the output of the op amp. I don't ...
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1answer
126 views

Differentiator (Op amp) with a square wave

I'm working on a differentiator (op amp) with a unitary gain i calculated the value of RC and the period with a frequency of (1kHz). Figure 1. Differentiator Schematic (OrCAD). This is the schematic ...
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1answer
39 views

Spice model search with advanced sorting functionality

Does anyone know of a search engine like Mouser/Digikey where you can narrow down parts based on voltage/package type/etc., but exclude all results without PSpice models? Unless I'm doing it all wrong,...
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1answer
89 views

Allegro OrCAD Capture: Crashing after DRC check [closed]

Issue: The OrCAD Capture software by Cadence is continually crashing. The version I have is SPB_16.5. Problem: I can run ONE DRC check fine, however; when I run another DRC on my schematic, the ...
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1answer
87 views

How i fix this PSPICE orCAD problem? - Model D1N747 used by D_D1 is undefined

From [PSPICE NETLIST] section of C:\SPB_DATA\cdssetup\OrCAD_PSpice\17.0.0\PSpice.ini file: .lib "nomd.lib" Analysis directives: .TRAN 0 500ms 0 .OPTIONS ADVCONV .PROBE64 V(alias()) I(alias()) W(...
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1answer
60 views

Op amp AC simple supple (Buffer) LM324N

I´m working on a proyect and i use OrCad/Spice to simulate the op amp that i gone use and my Voltage(output) signal is Constant and my Voltage(Input) is sinusoidal.
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1answer
63 views

Can Orcade (PSPICE) actually simulate MOV(Varistors)?

I am using Cadence-Orcade Lite. In it I have a circuit in which I want to note the behaviour of varistors (MOV, PSPICE models exist in Orcade for various varistors). I am using LS40K680QP/EPC Model ...
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1answer
218 views

KiCAD Component Pad Clearances

I'm using KiCAD version 5, and I have an issue with it. Previously, I've been using OrCAD up until the point to where I needed multiple layers for my board. So, I redesigned my components, but I'm ...
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0answers
51 views

Updating constraints on Orcad 17.2

I just switched from orcad 16.6 to 17.2 and i have come across an issue i cant figure out. I routed a bunch of traces down the pcb at a line to line spacing of 7, but now i want to change the ...
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1answer
31 views

Anomalous capaictor discharge in pSpice with transient analysis

I'm doing a Transient analysis of the given circuit.My question is why didn't my capacitor discharge fully,according to the graph?
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58 views

Simulation not giving proper result in orcad

I tried to simulate TPS61021A boost converter in orcad but not working properly.As per datasheet http://ti.com/lit/ds/symlink/tps61021a.pdf it should give 3.3V output. Received this error is PSPICE A/...
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398 views

Error: “less than 2 connections at node orcad”

I am using orcad 16.6 for the first time. I have made a new library for the memristor, created a new part into it, and associated this new part to the PSpice simulation with one PSpice model. But when ...
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2answers
136 views

ERROR — Digital simulator not present [closed]

Can you tell me how can I fix this error?
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1answer
270 views

Simulating oscillator in LTSpice vs Orcad

I'm busy simulating a Hartley oscillator that I have designed for a 64.5kHz oscillation frequency. I first simulated in LTSpice and obtained the results below which I am happy with: LTSpice ...
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1answer
284 views

Adding a Vacuum Tube library to OrCAD CAPTURE

Introduction I wanted to mess with Vacuum Tubes and learn from old electronics to show my granpa how they worked, specially radio (AM and FM). I downloaded a library of vacuum tubes but could not ...
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0answers
9 views

Silvaco Gateway: Relative Parameters

In OrCAD, you can have a parameter, e.g. 'L'. You can have other values be relative to that number, e.g. 'W = 4*L'. Either in the parameter or the model value box, the syntax to accomplish this is: ...
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45 views

Interchangeable Parts in OrCAD CIS

We just started using OrCAD Capture CIS at the company I work for, and we were wondering how can 'treat' interchangeable parts. When we migrated our current library we found that we had several caps ...
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1answer
39 views

Is there any simulation environment provided with TDC-GP1 counter frimwaire?

hello everybody I want to simulate an electronic circuit, I used TDC-GP1 (Time to Digital Converter) I searched in Proteus and in Pspice Cadness but didn't find this part in library, is there any ...
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35 views

OrCAD Capture Question: Two traces in same plot - where do they cross?

If I have two traces in the same simulation plot, is there a way that I can determine when they are equal to each other?
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0answers
33 views

Plotting results problem using Pspice

I am performing a simulation of an eletronic circuit using Pspice and OrCAD. I want to know how the circuit will behave for long periods of time (in this case, 500s). After the simulation this weird ...
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53 views

ORCAD 16.6 ERROR

Hello I just imported LM5175 model from TI and used it for simulation however I am getting an error as ORPSIM-15108 Subcircuit LM5175_TRANS used by X_U1 is undefined Can someone help me on this
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47 views

OrCAD Capture Question: Replace Bias Voltage Marker

If you delete a bias voltage box (pictured below), how do you go about replacing them?
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1answer
309 views

Alternative spice model of TI CD4066b

I'm busy working on a uni practical in which we are required to construct a chopper modulator and I'm busy creating a schematic in orCad to run some simulations. I'll be using a Texas Instruments ...
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39 views

OrCAD Capture Simulation Question

When running a bias simulation in OrCAD Capture, is there a way to automatically display the output file?
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1answer
964 views

OrCAD PSPice less than 2 connections error while simulating

I just started using PSPice and I don't know much circuits theory but I need to simulate this circuit and find Vout/Vin: I did this using capture but after running simulation I get this error: ...
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1answer
111 views

OrCAD: Determining which trace in Secondary Sweep is which after simulating

When you run a primary and secondary sweep, there are multiple sets of traces for the same signal, where each individual trace represents a different value from the secondary sweep. In OrCAD 16.0, I ...
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0answers
90 views

Can't figure out what connector is that. Orcad 9.2

I'm trying to reproduce this as I'm learning to use orcad 9.2 but there is that CN1,2,3,4,5 connector I can't find in any of the pre-installed libraries. Can anyone tell me where can I find it and ...
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186 views

How do I swap the layer order (with preexisting data) in OrCAD Allegro PCB?

Does OrCAD Allegro PCB editor have a function built in which I can use to move a layer to another position in the stackup? I am working with a 20 layer board and need to move layers 2 and 19 to the ...
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6answers
786 views

How to determine voltage across LEDs in a circuit?

I simulated a basic circuit in Orcad but I don't know how it found voltages(6.08 V and 3.04 V) on the nodes? How do I calculate those voltages mathematically? I am attaching three image files of ...
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0answers
724 views

ir2110 spice model

I download orcad (pspice) model for ir2110 and try to use it but Orcad displays a message box with this error: There are no data values in section number one - Ignoring this section. Then the ...
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0answers
143 views

OrCAD Allegro PCB Designer Ground Plane

i want to assign a black color to Ground Plane (GND 0), it's shape is polygon and it's color is gray like shown on below image, i have two questions: is this a possible polygon shape to implement ? ...
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1answer
377 views

OrCAD PCB Designer Transistor Footprint

i want to change the position of the transistor pins (2N3904 & 2N3906, Q3,Q4,Q5 and Q7), on the first image is what i got so far (inside green oval area), the footprints are TO92. i want to ...
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1answer
222 views

OrCAD PCB Designer PSpice File Export to PDF (Gerber)

i want to export this PCB circuit to PDF exacty as it is (above image), but when i click on file -> export -> PDF, its shows exacty the window on the left "Allegro PDF Publisher", then i click on film ...
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66 views

Meaning of the negative sign in the cursor window of Cadence Orcad Pspice

I measured the currents' value on their waveform and somehow in waveform cursor window, it showed the negative sign in front of each measured current (e.g. -I(R1)). What is the meaning of that ...
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34 views

Weird behavior of Cadence Orcad in MS Windows OS 10

Whenever a new window is opened or I make some changes (add cursor maker, create a new waveform window, etc.), the menu icons of Cadence Orcad software (Capture, Pspice, etc.) keep flicking and it ...
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51 views

OrCAD PCB Designer PSpice Islands

I want to create two islands like in this image and connect them (2 purple circunferences), how i do that on Allegro PCB Designer ? I want to connect the Collector (Pin 3) of Q6 transistor to Pin 2 ...
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54 views

How to Access EMC's Design Configuration Dialog Box

How to Access EMC's Design Configuration Dialog Box ? I'am using Cadence Orcad 16.6 complete. I got Orcad pcd designer and PSpice, i can't find the correct menu path to Access EMC's Design ...
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1answer
322 views

Please Help me with this PSpice CODE CIRCUIT [closed]

I have a circuit to implement in PSpice, but I am completely newbie. Can you help me with it ? Here is the picture of it. I have to make an AC analysis, with a a signal source of 100mV with the ...