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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integrator op amp pulse to square signal
I´m working on a integrator circuit using op amp but i´m integrating a pulse wave but in the output of the integrator the signal isn´t in a stable state meaning stable state as the stable signal with ...
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1answer
43 views
Orcad Capture CIS, How to change transistor area?
If using the QbreakN and QbreakP, how could I change the relative emitter areas of each individual transistor.
I need to match the parameters like in the figure below:
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1answer
55 views
Voltage Multiplier Problem
I´m working on a voltage multiplier with 5 stage, i´m using the same capacitor and i think that my problem is the current load but i actually think that with a resistor in the output of the multiplier ...
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21 views
Design pads and import to OrCAD PCB; or design directly in OrCAD PCB designer after importing other components?
I have a problem with layout design of pad. After creating the netlist and doing the routing, I want to add some single long pads to the board without packages to be able to solder wires on these pads....
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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
32 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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35 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
34 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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113 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
80 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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92 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
40 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
34 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
61 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
93 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
161 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
41 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
103 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
149 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
71 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
88 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
346 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
54 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
40 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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78 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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475 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
150 views
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1answer
308 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
363 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
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
43 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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37 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
38 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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48 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
396 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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1answer
1k 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
141 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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95 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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6answers
966 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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169 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
443 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
267 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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0answers
72 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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1answer
412 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
91 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
53 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
86 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
2k 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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135 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
384 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 ...
