Transistor Biasing Tutorial

Discussion in 'General Electronics Chat' started by rmawatson, Jan 6, 2014.

  1. rmawatson

    Thread Starter New Member

    Jan 6, 2014
    1
    0
    Hello,

    On the page :

    http://www.allaboutcircuits.com/vol_3/chpt_4/10.html

    The line that says "Solving the IE base-bias equation for RB and substituting β, VBB, VBE, and IE yields 930kΩ. The closest standard value is 910kΩ"

    VBB is set at 10v for subsituting in. Is this an arbitrary choice or what?

    Thanks.
     
  2. crutschow

    Expert

    Mar 14, 2008
    12,972
    3,219
    It states that Vbb = Vcc and yes, 10V for the Vcc value is arbitrary.
     
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