reduce gain for transistor

Discussion in 'General Electronics Chat' started by karas, Sep 8, 2011.

  1. karas

    Thread Starter Active Member

    Sep 8, 2011
    99
    0
    to reduce gain for transistor we put resistor between base and emitter can someone help me what the effect of R that it lower the gain
    thanks
     
  2. vrainom

    Member

    Sep 8, 2011
    109
    19
    I'll give you a hint: bipolar transistors' output current (collector-emitter junction) is proportional to the current flowing through the input (base-emitter junction). So if you place a resistor parallel to the input...
     
    TAKYMOUNIR and karas like this.
  3. Adjuster

    Well-Known Member

    Dec 26, 2010
    2,147
    300
    Such a resistor reduces the current gain, but does not stabilise it. For this we normally apply negative feedback.

    @ vrainom: Is that nickname in line with the recent Google+ ruling?
     
  4. vrainom

    Member

    Sep 8, 2011
    109
    19
    It's from an Yves Bonnefoy poem I like, and also kind of a word play since it means "true name"
     
Loading...