Transcript new, project

ORCAD RELEASE 9.2
TUTORIAL
Abdülkadir ERYILDIRIM
Turgut Ozal University
The Objectives:
 Open and Save New Project File
 Create a Circuit Schematic
 Get Place, Place Parts i.e. Resistors and
Sources
 Simulate a basic circuit
The Schematic
Capture vs Capture CIS
 OrCAD Capture provides fast and intuitive
schematic design entry for PCB development
or analog simulation using PSpice.
 The component information system (CIS)
integrates with it to automatically
synchronize and validate externally sourced
part data.
 http://en.wikipedia.org/wiki/Capture_CIS
 http://www.cadence.com/products/orcad/orc
ad_capture/pages/default.aspx
How to Create New Project
 Find and click Orcad Capture or Capture CIS
under your operating system
Next Steps
 Specify the name of the project in the
appearing window (be creative)
 Never use Turkish characters
 Select Analog or Mixed A/D
 Select a valid Location (an existing folder
in general)
Next Step:
- Select Analog or Mixed A/D
- Select a valid Location (an existing
folder in general)
Create a new folder for each new project
Under FILE, choose NEW, PROJECT
The following box should appear…
To simulate a design, choose Analog
or Mixed A/D.
Choose where you will save it and
what you will call it.
Click OK
Types of Project
Attention
 To simulate circuits, choose Analog or Mixed A/D.
Next Step
 Create Blank Project
A blank schematic page will appear.
This is where you will draw your schematic.
Important: Notice that there is a PSpice menu on the
menu bar. If this is not there, you will not be able to
simulate your circuit.
•Congratulations

Now you are ready for
creating
schematics
and
achieving circuit simulation
Creating Schematics with
Capture
 Keyboard Shortcut : Shift+p for placing parts.
 Placing Part sign
 To insert most of components in a circuit, use
Placing part (including voltage sources,
resistors, capacitors)
 You must know that which component is
located under which library
After clicking Place Part
button
 I already
added one
library :
Analog_p
 To find a
component,
you should
“Add Library”
 Write here to
search
Add Library
 Analog_p library is quite
useful
 Search internet for
information about other
libraries and how to find
the components you are
looking for
The libraries that contain parts that will
allow you to simulate are found in
folders labeled PSpice.
These parts have PSpice model
attributes with them.
Choose the libraries that you want to add.
Sometimes it is hard to know what
library parts are in. If you know
the name of the part that you want,
you can also search for the part.
Attention
Do not forget Ground in your
circuits
 This toolbar gives shortcuts for building the circuit.
 Place a part button:
 Draw a wire button:
 Place power node button:
 Place GND button:
How to do Simulation

There are a couple of different ways to check for errors in your circuit. The first is by
creating a netlist.

Under the PSpice menu, choose Create Netlist.

You can view the netlist by choosing View Netlist, under the same PSpice menu.

The next way is to actually simulate the circuit.

To simulate, you need to create a new simulation profile. Under the PSpice menu,
choose New Simulation Profile. The following window will appear so that you can
name it.You can also choose which schematic you want it to associate with
.
How to simulate?
 PSpice \ New Simulation Profile
 Fill out the profile name
Once you have named it, click OK, and the following simulation settings widow will pop up.
This is where you choose what you want to do when you simulate.
In this menu, you can choose
what type if simulation to
do (Transient, DC Sweep,
AC Sweep, or Bias Pt)
There are options for each
type of simulation.
Once you have everything figured to how you want it, click OK. To simulate, you need
to push the play button(RUN).
Click on the Play (Run
PSpice) button for running
simulation
Probes for measurements
Once you push Run, the following widow will appear as
Spice checks for errors and completes the simulation.
Example: Bias Point Analysis
 Draw the following circuit
• How to simulate ?
–
–
–
–
–
PSpice \ New Simulation Profile
Or if already created, Edit Simulation Profile
Select Bias Point in Analysis Type
Click OK
Run
Bias Point Analysis
 Click V, I and W for Voltage, Currents, power
over components
Example: Time Domain Analysis
 Draw the following circuit (for source, use
VSIN)
 Do not forget to put the voltage probe (V)
New Simulation Profile
 Analysis Time : Time Domain
 Run to time : 1 s (one second)
Do the run and you get:
Zoom in for better plotting