bjt ac analysis

Discussion in 'General Electronics Chat' started by bellamkonda revanth, Sep 2, 2010.

  1. bellamkonda revanth

    Thread Starter New Member

    Aug 17, 2010
    could someone please clarify my doubt...
    my doubt is:
    what is main purpose of dc analysis?
    i confused with the re model of bjt...:confused:
    in re model we only take the ac component for gain calculations,why don't we take the dc component into consideration....
  2. thingmaker3

    Retired Moderator

    May 16, 2005
    For a sine wave with no distortion, the DC component will be halfway between the negative and positive peaks of the AC component. This will be as true for the output as for the input.