Robbing current from a rotating magnet.

Discussion in 'Homework Help' started by bundick, Dec 19, 2007.

  1. bundick

    Thread Starter Active Member

    Dec 19, 2007
    An Outboard motor has two large magnets in the flywheel.
    They are meant to charge two coils inside the Flywheel.

    There wont be much magnetisim felt outside the flywheel as it passes.

    What kind of coil and core can I use to capture some of the flux lines as the magnet passes my invention?

    I have an "E" shaped piece of Ferrite. Its about 7/16's of an inch thick.
    About 1-1/2 by 1-1/2 inches square.

    I thought (big problem there eh?) that if I wound some fine wire around each leg of the ferrite "E" and put the legs of that "E" right up close to the Flywheel I might get some voltage inputs as the magnets pass by.

    I dont know how to measure the Guass of those magnets as they go by.
    so I would have no idea about the size of the wire or the number of turns I'd need to come up with a voltage.

    This would be a small-amps trickle charger or in another application I would use it to charge up a large capacitor which I think I could use as a power supply for some small solenoids.