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
V2
10V
Vout
Q1
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
resistor
BJT
Part name
R
Q2N2222
Library if you are at school
ANALOG
BIPOLAR
Library for student version (home)
ANALOG
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