Fisico

PSPICE Tutorial v.14.2 Cadence Schematic


In this tutorial we will build a full wave rectifier circuit in Pspice. Pspice is a circuit simulation and analysis tool that you will be using in electrical engineering classes as well as in professional environments.


To get access to this program there are several options. You can get a student version to install on your own home PC(windows only unfortunately). The student version will work for very basic purposes, but it lacks many of the libraries of parts that are available in the full version. You can get access to the full version of Pspice in the EECE computer lab or in Fiedler Library. To access Pspice in the computer lab you go to start->programs->Cadence PSD 14.2->schematics. In Fiedler library you would click onstart->programs->engineering apps->Cadence Pspice Schematics. This will open a window that looks like this
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Note for users of the newest version 15.7:
When using the OrCAD demo v.10.0 with Cadence Capture program v.15.7, please follow the steps below.
Here's a link to a "demo" version of 15.7 in case you do not have access to a CDROMhttp://www.cadence.com/products/orcad/downloads/orcad_demo/index.aspx

Start Programs: “ORCAD 10.0 Demo” and then “Capture CIS Demo”
   Go to: File   >  Open   > Project   for an existing project or do the following to start a new project
File > New > Project will open a window for New Project.
Select a radio button Analog or Mixed A/D to load all the parts libraries. The new project may be blank or copied from anexisting template. In the next window select the option for “Create upon an existing project” called empty.opj, or choose a blank project.
A warning window concerning the limitations of the demo version will appear: Capture CIS Warning > click OK a few of times to close it.
Now you are in a Capture Program ready to draw schematics and simulate. This part is very similar to the older versionsthan use Schematics, with some differences and improvements. Remember to create the project first. Wiring tools, parts placement, and grounds are located to the right of the screen. Try it.






Now we can start building a circuit. For this we will need to retrieve a total of five types of parts: sinusoidal source, transformer, diode, resistor, and capacitor. There is a “get new part”icon that looks like a pair of binoculars next to a text box in the row of icons at the top, clicking on this icon opens a new window.
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Now in this window we can type in a part name and we will see a description as well as a symbol for the part. Let’s start with the sinusoidal source, type vsin in the part name field and we should now see this in the window.
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We can now placethis part on the schematic by clicking on place and close and click on the schematic page. You should now have a source symbol on the page. Next we need to retrieve a transformer. Go back into the Part browser by clicking on the “get new part icon” and type xfrm in the “Part Name” field. This brings the list to the first of several transformers. Highlight “XFRM_LIN/CT-SEC” and the followingdescription and symbol should appear.
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Place this on the schematic as well by clicking on place and close. Now we need an analog ground. If you know the part name you can simply type it in the text box next to the “get new part” icon, try typing gnd_analog and pressing enter. You should now have an analog ground icon, place one below the AC source and one next to the center tap on the secondaryside of the transformer. It should look like the following picture now.
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From here we have 3 more parts to place, two diodes and a resistor. For the diode type in the text box 1N4376 and press enter. Now place one next to the top and bottom connections on the secondary side of the transformer. The last part to place for the time being is a resistor. Simply type “r” or “R” in the text...