phototransistor/photodiode

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Discussion in 'The Projects Forum' started by bwaley, Jun 29, 2008.

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  1. Jun 29, 2008 #1
    bwaley

    Thread Starter Member

    Jun 1, 2008
    27
    0
    what are the difference between photodiode and phototransistor. also give me their respective practical application.
     
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  2. Jun 29, 2008 #2
    bertus

    Administrator

    Apr 5, 2008
    19,689
    4,055
    Hello,

    A photodiode is a "passive" semiconductor element, see the following page with a lot of links for more information :
    http://www.educypedia.be/electronics/composemiconductorsphoto.htm

    A phototransistor is an "active" semiconductor, see the following page (on the bottom) with a lot of links for more information :
    http://www.educypedia.be/electronics/composemiconductors.htm

    These pages com from the EDUCYPEDIA , this is the electronics page :
    http://www.educypedia.be/electronics/electronicaopening.htm

    Greetings,
    Bertus
     
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