Download PSPICE (Orcad Family Release 9.2 Lite Edition)

PSPICE (Orcad Family Release 9.2 Lite Edition) Installation Instructions
1. Momentarily disable your anti-virus software.
2. After loading the Orcad into CD-ROM in its drive, a window may pop up asking
if the user has administrative privileges to install the software on the user’s
computer. Provide the administrative account details and click OK.
3. A warning message pops up asking the user to turn off any user virus detection
Programs. Click on OK.
4. Click Yes on the “Administrative Privileges Information” window if appropriate.
5. Click next on window displaying Welcome message.
6. From the “Select Products” window, select options Capture and PSpice. Capture
is for schematic input and PSpice for modeling. Click Next.
7. The “Installation Directory” window asks the user to select the Destination Drive
and folder. The user may choose the default settings or can select different
settings by clicking on the Browse button. Click Next to continue.
8. Next, a window, “Select Program Folder”, pops up. Here the User may type a new
folder name or select one from the existing Folders list. Click Next.
9. The window, “Start Copying Files”, displays all the Current Settings. Click Next
to begin copying files.
10. Starts copying files onto your hard drive.
11. A “Setup Complete” window pops up. Click Finish Button to complete the setup.
12. Restart the machine after installing the software.
13. You have installed the software and are now ready to put to use.
Example: To draw a simple dc circuit and simulate its electrical behavior.
1. Launch PSPICE from the Windows START button, going through Programs to
Orcade Family Release 9.2 Lite Edition, and clicking on Capture Lite Edition.
This places you in the Schematics window, where you will now draw your circuit.
2. Go to File → New → Project → Give a name to the Project. Select Analog or
Mixed A/D option. Type the Location to be stored. Click OK.
3. From the “Create PSpice Project” window, select “Create a blank project” option.
Click OK. This gives the first page of the schematic.
4. Go to Place → Part. The “Place Part” window pops up. Click Add Library button.
Select all libraries (ABM, ANALOG, ANALOG_P, etc.) and click on Open. This
places them under Libraries in the Place Part Window.
5. Click on Source under Libraries. This tells the editor that you wish to place a part
that is located in the Source Library. A list of all parts in the Source Library now
appears in the Parts List window. Click on the VDC part and then click OK. Drop
the dc voltage source on the schematic by left clicking on the mouse. Then right
click on the mouse and click “END MODE”.
6. Now, go back to Place on the Menu bar and click on Part. Select Analog under
Libraries. Select part R and place the resistor (R1) on the schematic (as shown in
Figure 1). Repeat the above step for one more resistor, R2, and place it as shown
in Figure 1.
7. Select Wire from Place (on Menu bar) and connect the two resistors as well as the
voltage source. Place the mouse crosshair on a node and left click, then drag the
wire to the next connection and left click again. This drops a wire connection onto
the schematic. Note: If you make a mistake and wish to remove a wire connection
(or any other part), just left click on the wire (or part) and press the Delete key.
8. All circuits must have ground! To ground the circuit, go to Place (on Menu bar)
and select the Source library (i.e., from the PSPICE folder). Select “0” part as the
ground and place it on the schematic as shown in Figure 1.
9. Now, to change the value of the dc voltage source (from 0 V to 10 V), select the
source and right click on the mouse. Go to Edit Properties. Change the value to 10
V in the Display Properties window. Or, an easier method is this: left click on the
value (0 V) to select it, and then double click on the value and a window will open
with the value displayed. Simply edit the value and click on Okay. You can also
change the value of any component in this same way.
10. No PSPICE assignment is complete until you place a text box on the schematic,
which identifies your name, date, assignment number, file name etc. Move the
pointer over to the right tool palette and click on the Place Text icon. Enter the
required text inside the “Place Text” window. Click OK. Move the mouse pointer
over the working area and place the text box just below the circuit. Place the text
box by first clicking the left mouse button and then right click to end mode.
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11. Save the schematic before proceeding.
R1
1k
V1
0Vdc
R2
1k
0
Figure 1: PSPICE schematic for a simple dc voltage divider.
Now that you have the schematic drawn and saved, we want to have PSPICE analyze
it for us. In this case, let’s find the voltage and current through every component.
12. For Analysis, click PSPICE on the Menu-bar and select “New Simulation
Profile”. Enter a name for the simulation (same name as the schematic name is
okay) and click on the “Create” button. A Simulation Settings window pops up.
Go to Analysis type on the Analysis page. Select Bias Point from the Analysis
Type dropdown list. Click OK.
13. Go back to PSPICE on the Menu-bar and click on “Run”. PSPICE now performs
a dc analysis of the circuit.
14. A real time window pops up displaying the simulation profile.
15. Close the real time window and go back to the Schematic. PSPICE displays all
the node voltages, branch currents and power on selected parts. You can select
(left click) any of the labels, node voltages, branch currents and power and then
drag them to new locations if you like. Sometimes PSPICE draws them on top of
your components or wires. Your schematic should look like that in Figure 2.
11.11mW
10.00V
R1
1k
3.333mA
V1
10V
6.667V
3.333mA
22.22mW
R2
0
0V
2k
3.333mA
Figure 2: The Bias Point (dc Values) shown in the schematic.
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