Current Amplification

Discussion in 'General Electronics Chat' started by addleme, May 17, 2009.

  1. addleme

    Thread Starter New Member

    Dec 16, 2008
    4
    0
    I have a four phase square wave current source which I will drive inductors. As a matter of fact I need to increase my 1.2 mA peak current to 420 mA peak. Is there any simple method by using power transistors or any transistor for this purpose?

    Thanks.
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Do you have a circuit for the current source?
     
  3. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    Look up emitter follower, compound emitter follower, source follower.

    They are relatively simple to implement.
     
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