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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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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
53 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
60 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
93 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
34 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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62 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
49 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
48 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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49 views

Pspice overlap two wires without connecting them

I designed this feedback circuit in pspice. As you can see, there are some wires which overlap and should not be connected. As I found online, I tried to not place the overlapping wire over a ...
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1answer
54 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
130 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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43 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
26 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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0answers
47 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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323 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
122 views

ERROR — Digital simulator not present [closed]

Can you tell me how can I fix this error?
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1answer
207 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
204 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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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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41 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
33 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
29 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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52 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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43 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
247 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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34 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
814 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
87 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
81 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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0answers
161 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
616 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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OrCAD Allegro PCB Designer Ground Plane v2

How do i remove all the "GND" text in this board ? On the below image, there is one "GND" text right in the middle and there are also 2 "GND" in the corners. i did a ground plane all the area on ...
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634 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
125 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
309 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
165 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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54 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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29 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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48 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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46 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
259 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 ...
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1answer
63 views

OrCAD PCB Designer PSpice Automatic Route

The Automatic Route on the OrCAD PCB Designer, is always drawing a line width of 0.1270 (default), but i need a line width of 0.5000, like is shown on options menu and inside the red oval on this ...
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1answer
45 views

OrCAD PCB Designer PSpice

How do I increase the area of the yellow square (the pad) on the transistors? The way it is now is just too small for the tracks. (I need the area to be something like the resistors).
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1answer
59 views

Element in OrCAD

I want to model electric scheme in OrCAD from an image and I stuck on element K1 (surrounded by the red rectangle). What is this element, why do we need it, and can I find it in standard OrCAD library?...
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2answers
1k views

Where is the pspice “output file”?

This is the error message when trying to run a simulation for one of my models ...
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0answers
97 views

How to make a DC sweep with negative change in pspice orcad?

I have the following circuit and I want to varry V1 from 24V to 0v while keeping V2 = 5V, naturally I tried using DC sweep simulation with start value of 24V, end value of 0V and variation of -1, but ...
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3answers
295 views

Common emitter with low voltage input

I have to do a project involving a common emitter amplifier. The only given data is: the amplitude of the input signal is 100u, and offset voltage is 0. I need that signal to be amplified. But my ...
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0answers
514 views

AC source in OrCAD

I'm trying to get AC voltage, but even in simplest circuit i can't do it. Who knows what's wrong with this program or circuit?
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1answer
496 views

Triangle waveform in OrCAD

I faced with problem in my project. I have to build circuit in OrCAD that should to generate triangle signal. I tried to use IC 555, but get sawtooth signal. After that i used hours and tens of ...