headphone adapter

Discussion in 'The Projects Forum' started by devgorkha, Jul 11, 2011.

  1. devgorkha

    Thread Starter New Member

    May 17, 2010
    29
    0
    I had made a audio amplifier and i am thinking to add headphone adapter in my amplifier output. my amplifier is stereo power amp,o/p power is 6watt in each channel and maximum current withdraw by power amp is 3 amp.


    In order to make it,
    I have to know about internal impedance of headphone and power need to drive headphone.

    loudspeaker should off when headphone is plugged in.

    how can i do that ?? discuss on it...
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,156
    3,063
    Headphones differ in impedance, but FWIW I believe an iPod has a 32 ohm output impedance. A std headphone jack provides a NC connection to divert the signal to the speakers when a headphone jack is not inserted.
     
  3. devgorkha

    Thread Starter New Member

    May 17, 2010
    29
    0
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