dc voltage generation

Discussion in 'Automotive Electronics' started by falade47, Nov 14, 2017.

  1. falade47

    Thread Starter Member

    Jan 24, 2017
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    How are dc generators able to generate constant dc voltage if the coil with constant velocity rotates in a uniform magnetic field
     
  2. AlbertHall

    Distinguished Member

    Jun 4, 2014
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  3. shortbus

    AAC Fanatic!

    Sep 30, 2009
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    If you are talking a generator and not an alternator, the field is not a "uniform magnetic field". It is a variable magnetic field, controlled by the voltage regulator. This is also true for an alternator, except that an alternator puts out AC that is then rectified into DC.
     
  4. DickCappels

    Moderator

    Aug 21, 2008
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    And the voltage varies with time.
     
  5. falade47

    Thread Starter Member

    Jan 24, 2017
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    So are u saying a dc generator actually produces ac then a rectifier comes up..?..yeah I think I kinda experienced that from my gasoline generator *key series..i put my hand on the terminal of the batteries after putting the generator on..to my suprise I received a shock which was definitely from the alternator charging the battery..#please Is there a rectifier in conjunction with the alternator charging the lead acid battery or it uses ac to charge which I dont think is possible
     
  6. AlbertHall

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    Jun 4, 2014
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    The commutator produces the same result as rectifier.
    Car alternators include a rectifier, usually inside the alternator casing.
     
  7. shortbus

    AAC Fanatic!

    Sep 30, 2009
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