INTRODUCTION TO Drawing Circuits with PSPICE 9.2

OBJECTIVE

At the conclusion of this Exercise, the student will be able to install PSpice, make a working disk, and RUN the PSpice program.

INITIAL PROCEDURE

1.  Boot the computer.

Insert your ZIP disk in the drive.

2.  Now you will make a PSpice work disk. The program is already installed on the hard drive. Your work disk is for the data files that you create for the course.

From the ELEC101 web site, go to the Schedule. At http://www.brookdalecc.edu/fac/engtech/aandersen/elec101/101sch.html

DCL on Work Directory Files under week 4

Select Open and extract all the files to Your Disk.

3.  DCL on the Capture shortcut on the desktop to start PSpice, or

CL on Start

Highlight Programs

Highlight PSpice 9.2

CL on Capture CIS Demo.

4.  Start a new project by

CL on File

CL on New

CL on Project

5.  In the dialog box that opens,

Enter a project name

Select Analog or Mixed A/D

Select the path to the ZIP Disk or where you want your project stored

CL on OK

6.  From the Create PSpice Project box:

Select Create a blank project

CL on OK

7.  The Capture editor opens and can be seen on the next page. It is a typical Windows display consisting of menus, toolbars, scrollbars, and grids and grid references. Grids and grid references can be displayed or disabled by the user.

The toolbars are dockable, movable, and resizable. The Capture toolbar is docked at the top of the drawing window, and the Tool Palette toolbar is docked on the right.

By choosing a tool button, you can quickly perform a task that would require multiple menu selections. If a tool button is dimmed, you can’t perform that task in the current situation.

The following graphic is the Capture Toolbar followed by a table that describes the function performed by that button. We will be using most of the first 14 buttons.

The Capture Toolbar

Tool / Name / Description
1 / New / Create a new document based on the active document. Similar to the New command on the File menu
2 / Open / Open an existing project or library. Similar to the Open command on the File menu
3 / Save / Save the active document, schematic, or part. Equivalent to the Save command on the File menu.
4 / Print / Print the selected pages in the schematic folder, or the active schematic page or part
5 / Cut / Remove the selected object and place it on the Clipboard. Equivalent to the Cut command on the Edit menu
6 / Copy / Copy the selected object to the Clipboard. Equivalent to the Copy command on the Edit menu
7 / Paste / Paste the contents of the Clipboard at the cursor. Equivalent to the Paste command on the Edit menu
8 / Undo / Undo the last command performed, if possible. Equivalent to the Undo command on the Edit menu
9 / Redo / Redo the last command performed, if possible. Equivalent to the Redo command on the Edit menu
10 / MRU / Place a part or symbol from the list of most recently used parts and symbols
11 / Zoom In / Zoom in to see a closer, enlarged view. Equivalent to choosing Zoom and In from the View menu
12 / Zoom Out / Zoom out to see more of your document. Equivalent to choosing Zoom and Out from the View menu.
13 / Zoom Area / Specify an area of the schematic page or part to enlarge to fill the entire window
14 / Zoom All / View the entire document. Equivalent to choosing Zoom and All from the View menu
15 / Annotate / Assign part references to parts on the selected schematic pages. Equivalent to the Annotate command on the Tools menu
16 / Back Annotate / Back annotate the selected schematic pages. Equivalent to the Back Annotate command on the Tools menu
17 / Design Rules Check / Check for design rules violations on the selected schematic pages. Equivalent to the Design Rules Check command on the Tools menu
18 / Create Netlist / Create a netlist for the selected schematic pages. Equivalent to the Create Netlist command on the Tools menu
19 / Cross Reference / Create a cross reference report for the selected schematic pages. Equivalent to the Cross Reference command on the Tools menu
20 / Bill of Materials / Create a bill of materials report for the selected schematic pages. Equivalent to the Bill of Materials command on the Tools menu
21 / Snap-to-Grid / Toggle schematic page and part editing to either on or off grid. Project Manager Display the project manager window for the active document, providing an overview of project contents. Equivalent to choosing a project manager window by number from the Window menu
22 / Project Manager / Display the project manager window for the active document, providing an overview of project contents. Equivalent to choosing a project manager window by number from the Window menu.
22 / Help Topics / Open online help. Equivalent to the Help Topics command on the Help menu

The PSpice toolbar provides shortcuts for many of the most frequently used PSpice commands.

PSpice Toolbar in Capture

Tool / Name / Description
23 / New simulation profile / Opens the New Simulation dialog box. Equivalent to the New Simulation Profile command on the PSpice menu.
24 / Edit simulation settings / Opens the Simulation Settings dialog box. Equivalent to the Edit Simulation Settings command on the PSpice menu.
25 / Run / Runs the simulation. Equivalent to the Run command on the PSpice menu.
26 / View simulation results / Opens the simulation window. Equivalent to the View Simulation Results command on the PSpice menu.
27 / Voltage level marker / Places a voltage level marker on the schematic page. Equivalent to the Voltage Level command on the Markers menu (on the PSpice menu).
28 / Current into pin marker / Places a current into pin marker on the schematic page. Equivalent to the Current Into Pin command on the Markers menu (on the PSpice menu).
29 / Voltage differential marker / Places a voltage differential marker on the schematic page. Equivalent to the Voltage Differential command on the Markers menu (on the PSpice menu).

The following graphic is the Tool Palette followed by a table that describes the function performed by that button. The bold numbers in the list are the ones we will be using.

The Schematic Page Editor Tool Palette

Tool / Name / Description
1 / Select / Select objects. This is the normal mode
2 / Part / Select parts from a library for placement. Equivalent to the Part command on the Place menu
3 / Wire / Draw wires. Press and hold S to draw non-orthogonal (not a multiple of 90°) wires. Equivalent to the Wire command on the Place menu
4 / Net Alias / Place aliases on wires and buses. Equivalent to the Net Alias command on the Place menu
5 / Bus / Draw buses. Press S to draw non-orthogonal segments. Equivalent to the Bus command on the Place menu
6 / Junction / Place junctions. Equivalent to the Junction command on the Place menu
7 / Bus Entry / Draw bus entries. Equivalent to the Bus Entry command on the Place menu
8 / Power / Place power symbols. Equivalent to the Power command on the Place menu
9 / Ground / Place ground symbols. Equivalent to the Ground command on the Place menu
10 / Hierarchical Block / Place hierarchical blocks. Equivalent to the Hierarchical Block command on the Place menu
11 / Hierarchical Port / Place hierarchical ports on schematic pages. Equivalent to the Hierarchical Port command on the Place menu
12 / Hierarchical Pin / Place hierarchical pins in hierarchical blocks. Equivalent to the Hierarchical Pin command on the Place menu
13 / Off-Page Connector / Place off-page connectors. Equivalent to the Off-Page Connector command on the Place menu
14 / No Connect / Place no-connect symbols on pins. Equivalent to the No Connect command on the Place menu
15 / Line / Draw lines. Equivalent to the Line command on the Place menu
16 / Polyline / Draw polylines. Press and hold the Shift key to draw non-orthogonal polylines. Equivalent to the Polyline command on the Place menu
17 / Rectangle / Draw rectangles. Holding the Shift key constrains to a square. Equivalent to the Rectangle command on the Place menu
18 / Ellipse / Draw ellipses. Holding the Shift key constrains shape to a circle. Equivalent to the Ellipse command on the Place menu
19 / Arc / Draw arcs. Equivalent to the Arc command on the Place menu.
20 / Text / Place text. Equivalent to the Text command on the Place menu

Additional Capture use information can be found in section 1A of the course text.

All schematics must have a title block. The procedure to create a Title Block for your schematics was covered in class and is available in the pdf format of Lab 4 PowerPoint display available on-line. In addition, the general procedure is located in section 1.J of the course text.

Create a Title Block

1.  CL on File, CL on Open, CL on Library.

2.  CL on USER.OLB on the ZIP Disk and Open

3.  From the list, CL on SC_TITLE_BLOCK

4.  DCL on the text Schematic Capture with PSpice. Delete the text in the text box and replace it with Brookdale Community College. CL on OK

5.  CL on Options, CL on Design Template, CL on Title Block

6.  Enter your name in Organization Address 1 box, and the Course Code in Organization Address 2. CL on OK

7.  CL on File, CL on Save As.

In the Save Part As box, enter the name Brookdale_Title_Block

CL on OK Close the project

8.  Open a new, blank project with the name LAB04

9.  CL on the Parts Button on the tool palette.

10.  If there are no libraries listed in the bottom left corner of the dialog box, CL on Add Library.

11.  CL on analog.olb Hold the CTRL key and CL on analog_p.olb, class.olb, eval.olb, source.olb, special.olb, and user.olb CL on Open

12.  Scroll the list of parts and CL on R CL on OK

13.  CL and a place the resistor on the drawing.

14.  CR and a menu opens CL on End Mode

15.  To rotate a part 90°, select the part and press CTRL-R Leave the part horizontal

16.  DCL on the part value 1k To change the value, merely replace the current value. There can be no spaces between the numeric values or characters or an error will be generated when you attempt to run a simulation.

17.  We will now enter a resistor. CL on the Part button on the Page Editor Tool Palette.

18.  In the part section of the Place Part Dialog box type R to move to the first part with an R.

DCL on R/ANALOG

or

CL on R/ANALOG

CL on OK

19.  Place the pointer in the Schematic Editor Window and HL. While holding the left button, move the mouse until the component is centered in the window horizontally, and about 1/3 down from the top. Release the mouse to place the resistor.

You should see a resistor horizontally in the top middle of the front circuit window. If you have a problem, ask you instructor for assistance.

We wish to enter another resistor but this time orient it up.

When you draw a circuit the components should be appropriately spaced to make the circuit easy to read. If you cram all the components of a schematic into a small area, or if the circuit does not have a neat appearance, your work will loose credit and may be rejected.

Move the pointer about one inch to the right and one inch below the last component entered. Press CTRL R to rotate the resistor 90° CL to enter R2.

We are finished entering resistors at this time so CR and then highlight End Mode and CL.

An electric circuit requires a voltage source to operate. We will now enter a dc voltage source, commonly called a battery. PSpice uses the part reference VDC/SOURCE

CL on the Part (button 2) on the Page Editor Tool Palette

In the part box type V and select VDC/SOURCE from the list

CL and place the battery with the anode (the terminal marked with a +) facing up at the same level as R2 but about one inch to the left of the open lead of R1.

To have a complete circuit, we need to connect all the components together. This is done by entering orthogonal lines to represent conductors. The length of the line on the schematic does not necessarily represent the length of the conductor. In addition the position of the components or their orientation on a schematic does not necessarily represent their physical location on the schematic, but it does represent their electrical connection.

As you add Lines, make sure that you do not draw the line through the components that you have entered. To add lines,

CL on Wire (Button 3) on the Page Editor Tool Palette.

Now move the pointer to the top of the battery and HL.

Drag the mouse up and watch as the line is drawn. Continue to move the mouse up and to the right until the line is connected to the left end of R1 and release the left mouse button.

You now have a complete circuit from the anode of the battery to R1.

Place the pointer to the right (unconnected) end of R1 and HL.

Drag the mouse to the right and down to connect a Wire to the top end of R2 and release. You now have a complete circuit from the anode of the battery to R1 and to R2.

Place the pointer to the open end (bottom) of R2 and HL. From the current position, drag the down and left as a Wire is drawn toward the open end of the battery and release.

Now HL and drag Left and Up to the cathode of the battery.