Orcad Capture PSpice Diode Libraries

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Discussion Overview

The discussion revolves around locating a valid Orcad Capture PSpice library for the 1N4000 series of diodes, specifically addressing issues related to simulation errors and the availability of appropriate libraries. The context includes troubleshooting for a class assignment and the limitations of using a demo version of the software.

Discussion Character

  • Technical explanation
  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant reports difficulties in finding a valid Orcad Capture PSpice library for the 1N4000 series diodes, specifically encountering an error indicating that the model is undefined.
  • There is mention of downloading diode libraries and specific models from manufacturers, but these often do not meet the required format for Orcad.
  • Another participant offers to check their libraries and suggests sharing a book on modeling semiconductors in SPICE that may provide useful insights.
  • A participant shares a link to a book they found on Amazon that may be relevant to the Orcad PSpice package.
  • One participant mentions that their MicroCAP SPICE simulator has built-in diode models, providing an example of a model for the 1N4001 diode.
  • A suggestion is made to add specific library files from the installation folder to the simulation profile to potentially resolve the issue.

Areas of Agreement / Disagreement

The discussion contains multiple viewpoints regarding the availability and compatibility of diode libraries for Orcad Capture PSpice. There is no consensus on a definitive solution, and participants are exploring various options and resources.

Contextual Notes

The participant's use of a limited demo version of Orcad may restrict access to certain libraries, impacting their ability to find the necessary components for simulation.

Who May Find This Useful

Students and professionals working with Orcad Capture PSpice who need assistance with diode library compatibility and simulation issues.

niehaoma
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It seems I am having issues locating a valid Orcad Capture PSpice library with the 1N4000 series of diodes. I have downloaded Diode.olb, however when I simulate, I get an error such as: "ERROR -- Model D1N4009 used by D_D2 is undefined"

From my understanding, this arises due to the fact the part does not have associated PSpice simulation characteristics. I downloaded some other diode libraries, but no 4000 series parts were present. I also went to manufacturers website (e.g. Fairchild) and downloaded specific diode models, but they only come in *.lib, which Orcad doesn't seem to like. I need *.olb libraries.
Can anyone point me in the right direction to a *.olb diode library with the 4000 series that has associated simulation profiles?

As a note, this is for a class. I have to use a 4000 series diode, e,g, 4001-4009. In addition, the reason I am running into issues is I am trying to work from my laptop, so I have the 16.3 Demo ["Lite"] version running, which has a limited set of starter libraries included.

Any help would be appreciated. Thank you.
 
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I'll have a look at this question when I get back to work on Monday. I'll see what libraries I'm using, and also post information about a great book for Modeling Semiconductors in SPICE. That's what I use to fine-tune my semiconductor models...
 
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I did a quick search at Amazon, and found the book that I have at work:

https://www.amazon.com/s?k=semicond...i=stripbooks&ref=nb_sb_noss&tag=pfamazon01-20

241798


And this one looks even more applicable to your OrCAD PSPICE package:

241799
 
So my McroCAP SPICE simulator at work has lots of diode models built-in. Here is the model for the 1N4001 diode, in case it helps.

241915
 
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Add nom.lib from the installation folder (C:\Cadence\SPB_17.2\tools\library\capture\pspice\nom.lib) to your simulation profile. Also add the library that holds the diode to your simulation profile. This should solve the problem.
 
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