Cadence PSPICE SCHEMATIC Bedienungsanleitung

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PSPICE tutorial: a simple DC circuit
We will learn some of the basic maneuvers of using the Cadence schematic capture program and
PSPice engine through a simple example -- a diode rectifier circuit. The tutorial starts under the
assumption that the demo version of PSPICE is installed on your computer. The latest version
available for download is 16.6. If you want a copy to install on your own Windows machine, go
here http://www.cadence.com/products/orcad/pages/downloads.aspx and follow the instructions
to download the OrCAD 16.6 demo software. You will probably want the option for Capture &
PSpice only.
Getting started
Start the Orcad schematic capture program (Start -> Programs -> OrCad 15.7 Demo -> Capture
CIS Demo).
Start a new project by selecting (File -> New -> Project...) from the menu in the OrCAD Capture
window.
In the dialog that opens, provide a project name, a file path to where you want your project
stored, and select the item "Analog or Mixed A/D". Click OK.
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Inhaltsverzeichnis

Seite 1

PSPICE tutorial: a simple DC circuitWe will learn some of the basic maneuvers of using the Cadence schematic capture program and PSPice engine through

Seite 2

The first wire connection.10

Seite 3

All wires in place.11

Seite 4

Every SPICE circuit needs a ground connection. To add a ground, use the menu (Place -> ground) or click on the “ground” item in the vertical toolba

Seite 5

When the the components were placed, the names and values were set to default values. Generally, we need different component values and would like the

Seite 6

The other way to change names and parameters is to double-click on the part symbol directly (or select it with a single click and choose "Propert

Seite 7

(names and parameters), which can be edited in the dialog.Setting up the analysisNow that the circuit schematic is completed, you are ready to tell PS

Seite 8

4. Time Domain (Transient). This calculates the currents and voltages in a circuit at various points in time, allowing you to make a plot of a voltag

Seite 9

Running the analysisFor a simple DC analysis, we now have everything set up.Start the simulation by choosing "Run" from the "PSPICE&quo

Seite 10 - The first wire connection

We can also see currents and powers. To view those quantities, click the “I” or “W” buttons in the horizontal tool bar to toggle those quantities on

Seite 11

(Note that PSPICE follows the text-book practice of defining generated power as negative. In the example above, the VS1 and IS both have negative valu

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Another dialog opens that asks if you would like to create a blank project or start a new one based on an existing project. Since there is no existin

Seite 13

Placing parts, editing parts, and wiring the circuitStart the circuit definition by placing some resistors. Select "Part" from the "Plac

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Add the analog and source libraries to your project. (Add them one at a time – select “analog” from the list and then click on the “Open” button. Th

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When you are satisfied that you have the right part, double click on the “R” item in the list. You will be returned to the drawing window. The symbol

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A resistor symbol will remain attached to the cursor, so that you can place more resistors for the circuit. Place two more horizontally-oriented resi

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Use the same procedure to place two DC voltage sources (VDC in the source library) and one current (IDC in the source library) in the drawing window,

Seite 19

Now that all the parts are located in approximately the correct positions, we can use the wire tool to connect the them. Select the "Wire" i

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