winding a generating coil

Discussion in 'General Electronics Chat' started by blckwlfny1, Jan 15, 2013.

  1. blckwlfny1

    Thread Starter New Member

    Jan 15, 2013
    this is my first post
    I have a rudimentary knowlege of electricity theory...working concept of ohms law and series vs parallel circuits ....passed physics 101 :)
    But thats where it ends.
    I am trying to create a generator coil to insert into an existing rotating magnet system to generate 6-8 volts @ 5A
    I have no idea where to start including
    What kind of wire
    What gauge
    Insulated wire?
    How many coils...or a range of where to start
    What to make the core out of
    I know a certain amt of trial and error can be expected, but can someone start me off?
  2. Ron H

    AAC Fanatic!

    Apr 14, 2005
    What is the magnet's rotational speed (e.g., RPM)?
  3. Veracohr

    Distinguished Member

    Jan 3, 2011
    Review Faraday's law of induction. You need to know the flux of the rotating magnet to determine the number of turns of the coil.

    As far as wire, I believe wire with a thin insulating coating is used. Uninsulated wire with the coils touching each other would basically be like a sold sheet, not a coil.
  4. Ron H

    AAC Fanatic!

    Apr 14, 2005
    The reason I asked about rotational speed is you are looking for 8V @ 5A. That's 40 Watts. Power is equal to torque times rotational speed. Once we know RPMs, we can calculate how much torque will be required (ideally).