current amplifier of 500mA

Discussion in 'The Projects Forum' started by praveen101290, Apr 25, 2012.

  1. praveen101290

    Thread Starter New Member

    Jan 6, 2012
    1
    0
    Is this a current amplifier. And whether this will give 500mA output. In this circuit where is the output is taken.
    Suggest me some simple circuits of current amplifier which will give minimum of 500mA of output and using frequency of 200kHz as input.
     
  2. #12

    Expert

    Nov 30, 2010
    16,345
    6,829
    It's a current amplifier, but the resistances are all wrong. That TIP41A can do 6000ma but not with a 1K emitter resistor.

    We really need more information to come up with something appropriate. Tell us more.
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,154
    3,060
    The "load" is the 1K resistor (too high, as noted). R3 is just a way to run the battery down really fast.
     
  4. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,050
    657
    R3 is directly across the power supply, drawing a constant 5 Amps regardless of the input signal.
     
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