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Differential BJT amplifier

Discussion in 'General Electronics Discussion' started by JohnEG, Mar 22, 2012.

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  1. JohnEG

    JohnEG

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    0
    Feb 17, 2012
    What is the purpose of the Collector resistors?
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,903
    2,097
    Nov 17, 2011
    Lacking a picture of the circuit you're questioning, I can only assume that you refer to the load resistors which will convert the collector current into a voltage for further processing in later stages of the amplifier.

    Harald
     
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,363
    2,758
    Jan 21, 2010
    Redraw the circuit with those resistors removed and replaced with links.

    What happens differently to the points marked as VC1 and VC2?
     
  4. deepak kumar panda

    deepak kumar panda

    8
    0
    Mar 21, 2012
    Rc1 and Rc2 are nothing but the load for each transistor.if we are taking double ended o/p then we take the o/p 4m both d resistors .
     
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