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Very very simple question about bridge rectifiers

Discussion in 'Electronic Basics' started by Harry Muscle, Dec 17, 2003.

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  1. Harry Muscle

    Harry Muscle Guest

    In a bridge rectifier made of four diodes, which side is the supply (+) and
    ground (-)? I'm assuming the supply (+) is on the side that both cathode
    ends connect to, correct?

    Thanks,
    Harry
     
  2. Harry,

    It is.

    petrus
     
  3. Steve

    Steve Guest


    Loads and loads and loads of information available on the net that
    would have answered your question in less than a minute. I googled
    "bridge rectifier circuit symbol" to get an explanatory diagram like
    this one;

    http://www.kpsec.freeuk.com/animated/brect.gif

    or simply "bridge rectifier" to get a detailed tutorial from tpub.com
    (excellent technical resource!)

    http://www.tpub.com/neets/book7/27c.htm
     
  4. David Wood

    David Wood Guest

    In a bridge rectifier made of four diodes, which side is the supply (+) and
    Your terminology threw me at first. The input is AC so it has no
    polarity. The pulsating DC output you refer to as the "supply" does
    exhibit polarity as you indicate.
     
  5. P.R.Brady

    P.R.Brady Guest

    Er... just check the current flow directions on his first blue diagram
    and in the explanation. Looks distinctly reversed to me!

    Phil


    --
    Phil Brady
    Information Services
    University of Wales, Bangor
    Adeilad Deiniol
    Deiniol Rd
    Bangor LL57 2UX

    Tel +44 (0)1248 382960
    Fax +44 (0)1248 383826

     
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