Collector Bias stability for BJT amplifier

Discussion in 'Homework Help' started by t_n_k, Nov 11, 2009.

  1. t_n_k

    Thread Starter AAC Fanatic!

    Mar 6, 2009
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    Rather than hijack this thread ....

    http://forum.allaboutcircuits.com/showthread.php?t=30041

    I thought it would be an interesting little problem to derive the stability relationship for Ie vs β in the collector bias example discussed therein.

    In other words, derive ∂Ie/∂β for the bias condition then consider a variation in β and the consequent effect of this change on Ie.
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    Compared to an emitter feedback model, or temperature wise?
     
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