DC Biasing of Bipolar Junction Transistor Circuits

Discussion in 'Homework Help' started by sparkey2000, Jul 28, 2008.

  1. sparkey2000

    Thread Starter New Member

    Mar 9, 2008
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    Has anyone got some simple question papers (with answers) for the following types of BJT amplifier circuits; or even a link to a good website:

    Simple Bias Circuit
    Potential Divider Circuit
    Self Stabilizing Bias

    I really need some questions to work through, however I have no answers for my course notes.

    Thanks in advance for any help.
     
  2. Dave

    Retired Moderator

    Nov 17, 2003
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  3. sparkey2000

    Thread Starter New Member

    Mar 9, 2008
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    Sorry; I will post a new message.
     
  4. Dave

    Retired Moderator

    Nov 17, 2003
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    No need, I've copied your post over to this thread.

    Dave
     
  5. bertus

    Administrator

    Apr 5, 2008
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  6. Dave

    Retired Moderator

    Nov 17, 2003
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  7. silvrstring

    Active Member

    Mar 27, 2008
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    sparkey2000,

    I have some notes of my own on Fixed bias and Emitter biased BJTs, Collector/Emitter biased BJT circuits, and Voltage divider BJTs. My notes are mostly on voltage divider BJT circuits. Though, I do also have a small bit (super small) on fixed bias and emitter bias. Is that what you need?

    Let me know. I'll see what I can put together.
     
  8. sparkey2000

    Thread Starter New Member

    Mar 9, 2008
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    Hi Silvrstring. Those notes sound ideal, thank you for the offer.

    I will PM you my email address :)

    Thanks,
     
  9. sparkey2000

    Thread Starter New Member

    Mar 9, 2008
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    I have the following questions for a revision paper I'm working through; sadly I dont have answers:


    Determine wherther or not the transistor is in saturation.
    Assume , Beta = 50 and VBE = 0.7V

    The circuit has two power supplies:

    VBB = 3V
    VCC = 10V

    And two resistors:

    RC = 1kOhm
    RB = 10kOhm

    Many thanks
     
  10. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    I made a drawing of the schematic and made the calculations in it.

    Greetings,
    Bertus
     
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