PSpice Schematic: Drawing a Thermistor & Assigning Voltage

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Discussion Overview

The discussion centers around using PSpice Schematic to draw a thermistor and the challenges associated with inserting current indicators and voltage signs in the schematic. The scope includes practical application and technical assistance for schematic design in a lab context.

Discussion Character

  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant seeks assistance with drawing a thermistor and inserting current indicators in PSpice Schematic, expressing limited experience with the software.
  • Another participant suggests that +/- symbols are typically used only on voltage sources and that current direction is indicated by arrows in current sources, emphasizing that circuit behavior is defined by the simulation.
  • A third participant provides a link to search results for PSpice thermistors, indicating that additional resources are available online.
  • Another participant inquires about the specific version of PSpice being used and mentions a part called iDC for inserting a current source symbol, as well as the possibility of adding text boxes for clarity.

Areas of Agreement / Disagreement

Participants do not appear to have a consensus on the best approach to insert current indicators and voltage signs, with varying suggestions and levels of familiarity with PSpice.

Contextual Notes

There is uncertainty regarding the specific version of PSpice being used, which may affect the availability of certain features and symbols. Additionally, the discussion does not resolve the best method for indicating current and voltage in the schematic.

Who May Find This Useful

This discussion may be useful for students or individuals new to PSpice who are looking for guidance on schematic design, particularly in relation to thermistors and circuit representation.

ahammervold
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Hi. I'm drawing a Thermistor on PSpice Schematic to show a figure of the Thermistor for the lab write up but I am having trouble drawing the current "i" on PSpice Schematic. Could you help me out and tell me how to insert the current on my schematic? This is only the second time I have ever used PSpice Schematic so I really don't know what I am doing. Also is there a way to assign a + and - sign to my schematic to show voltage rise and voltage drop? Thanks for your help!:smile:
 
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I'm not very familiar with PSPICE, but you will generally only put +/- symbols on a voltage source, and a current direction arrow inside of a current source. What happens in the circuit is determined by the simulation itself, and how you define your node voltages. Can you post a screen shot of what you have so far?
 
Which version of PSPICE are you using? There should be a part called iDC or something to that effect that will insert a current source symbol into your schematic. Additionally, you can insert text boxes in the many versions I have used, but most voltage source parts will show the + and - for you. Could you be a bit more specific?
 

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