What's the point?

Discussion in 'General Electronics Chat' started by JoshK, Mar 17, 2016.

  1. JoshK

    Thread Starter Member

    Dec 24, 2009
    23
    1
    This looks like an inductor on each wire of the DC motor. Why would they do that externally?

    2016-03-17 12.55.06.jpg
     
    Last edited: Mar 17, 2016
  2. #12

    Expert

    Nov 30, 2010
    16,283
    6,795
    To reduce high frequency noise radiating from the wires.
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,118
    3,042
    Ditto. RF choke. Probably an afterthought for a particular application.
     
    #12 likes this.
  4. JoshK

    Thread Starter Member

    Dec 24, 2009
    23
    1
    Ah. I read #12's post and thought, yea but why would a motor care about high frequency noise. I think you're right, my motor was used when I got it, it was probably there for protecting whatever is not attached anymore. Thanks guys.
     
    #12 likes this.
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