Collector Bias stability for BJT amplifier

Thread Starter

t_n_k

Joined Mar 6, 2009
5,455
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.
 
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