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Magnetic Pickup Unit (MPU)

Discussion in 'General Electronics Discussion' started by rasmus, Jan 9, 2015.

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  1. rasmus


    Nov 6, 2014
    Hi Guys

    Saw an engine that had an MPU on the Flywheel. The thing is that this MPU has three wires. I haven't seen MPU's with three wires before nether do i understand what the third one is for ?. Any idea of the purpose ?

    The MPU outputs a frequency signal
  2. Externet


    Aug 24, 2009
    Can be a plain stepper motor driven as generator. They are three phase.
  3. davenn

    davenn Moderator

    Sep 5, 2009
    Its probably a Hall sensor. The 3 pins will be .... +V, signal out and GND

    hevans1944 likes this.
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