bipolar junction transistors

Discussion in 'Homework Help' started by 87shovelhead, Nov 3, 2007.

  1. 87shovelhead

    Thread Starter New Member

    Nov 3, 2007
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    1- How many regions of operation does a bipolar junction transistor have and which region has to dissipate the most heat
    2- In a biopolar junction transistor, collector current is controlled by what? a-collector voltage b-base current c-collector resistance or all of the above
     
  2. hgmjr

    Moderator

    Jan 28, 2005
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    These sound like homework questions.

    All of these answers can be obtained using google.

    hgmjr
     
  3. Management

    Active Member

    Sep 18, 2007
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    Do you have a textbook?
     
  4. thingmaker3

    Retired Moderator

    May 16, 2005
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  5. extremeads1

    Active Member

    Feb 10, 2007
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    3 regions of operation : 1) Saturation 2) Cut-off 3) Active
    It basically acts as a switch in first 2 regions of operation and an Amplifying action takes place in the third region.It is a current controlled device as a base current (Ib)controls the collector current(Ic) in case of CE (Common Emitter )configuration. search wikipedia http://en.wikipedia.org/wiki/Transistors for general information.
     
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