linear amplifier current and voltage question

Discussion in 'General Electronics Chat' started by saviogee, Mar 19, 2010.

  1. saviogee

    Thread Starter New Member

    Mar 10, 2010
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    0
    Why does the collector voltage in a linear ac amplifier decrease when the collector current increases?
     
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    The collector voltage is measured relative to zero, so the statement ' the collector voltage falls' means that the voltage of the collector drops towards zero.

    This must increase the voltage across the collector load resistor which is connected between V+ (the voltage rail) and the collector.

    By ohms law this increases the current in this resistor. This current also flows through the transistor.
     
  3. saviogee

    Thread Starter New Member

    Mar 10, 2010
    4
    0

    Thanks alot for your help!
     
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