220 PSPICE tutorial - Download as DOC

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					220 PSPICE tutorial
                                           Determining Bias Point of BJT amplifier

Create the schematic below (refer to the 220 create BJT schematic tutorial):



                                                                R3
                                                                               R1
                                                                 124.5K
                                                                               4K
                                                                                     Vout
                                                   V2                     Q1
                                          10V                    Q2N2222




                                                                R4
                                                                               R2
                                                                 28K
                                                                               1k


                                                                           0



Below is a list of parts that were used to build your schematic along with the libraries that they are in if you are using the
school version or student version that you can run at home.

 Part                  Part name                Library if you are at school        Library for student version (home)
 resistor              R                        ANALOG                              ANALOG
 BJT                   Q2N2222                  BIPOLAR                             EVAL

We are just about ready to simulate. We are just interested in the determining the bias point of the amplifier
To simulate:

1) From the main menu pspice->new simulation profile OR you can edit and existing simulation profile from the main
   menu: pspice->edit simulation profile we will assume that you have selected the later
2) You will then see the menu below
3) You need to choose the analysis type. Choose Bias Point
4) Hit <OK> to close this menu
5) To launch the simulation From the Main menu where you schematic is choose: Pspice-> Run or use the Run PSpice
   icon on the toolbar on the top of the window with your schematic (blue triangle/arrow)




After you simulation a blank waveform window will appear. Close this window.

You can display the DC bias points (Voltages and Currents) of your circuit using the icons located at the top of the screen
Note they toggle so you can use the same icons to disable display




                                                      Display bias points on schematic

				
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