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Thread: Capacitor Wiring

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  1. #1
    Senior Member TJay's Avatar
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    Default Re: Capacitor Wiring

    What are they used for on a Kitfox?

  2. #2
    Senior Member Av8r_Sed's Avatar
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    Default Re: Capacitor Wiring

    In our charging systems, the stator produces AC output which goes to the regulator/rectifier. The ouput of that is DC plus an AC voltage on top of it. A capacitor is often used to filter out higher frequency AC ripple on the rectified DC supply. It helps keep the electronics happy and audio quiet.
    -- Paul S
    Model III SN910
    582 IVO Med

  3. #3
    Senior Member TJay's Avatar
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    Default Re: Capacitor Wiring

    Quote Originally Posted by Av8r_Sed View Post
    In our charging systems, the stator produces AC output which goes to the regulator/rectifier. The ouput of that is DC plus an AC voltage on top of it. A capacitor is often used to filter out higher frequency AC ripple on the rectified DC supply. It helps keep the electronics happy and audio quiet.
    Thanks, I was thinking to myself, there really cant be much on a kitfox that pulls enough power on start up that you to need the extra stored power of a capacitor but if it acts as a filter too that makes more sense.

  4. #4
    Senior Member TJay's Avatar
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    Default Re: Capacitor Wiring

    So how do you wire these things up, Do you run the hot wire to the positive side then continue from the positive side to the electronics buss? And ground side to ground, or does power go in one side and come out the other?

  5. #5
    Senior Member Av8r_Sed's Avatar
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    Default Re: Capacitor Wiring

    They go the first way you described, in parallel across the power and ground. If you wired it in series, all you'd get out of it would be AC and none of your electronics would work.
    -- Paul S
    Model III SN910
    582 IVO Med

  6. #6
    Senior Member GWright6970's Avatar
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    Default Re: Capacitor Wiring

    Is there are preferred "connector" or "terminal" that one uses to connect the wires to these two little metal tabs sticking out of it's top?

    Excellent thread! Thank you!
    Grover Wright
    Flying a KF IV-1200
    ROTAX 912UL

  7. #7
    Senior Member jiott's Avatar
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    Default Re: Capacitor Wiring

    I believe those small metal tabs are for a soldered connection. Don't they have a small hole in them to attach the wire before soldering?
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  8. #8
    Senior Member GWright6970's Avatar
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    Default Re: Capacitor Wiring

    Jim, there are NO holes on the ends. They are just very skinny; just two tabs sticking out of the capacitor. The tab ends are pointed and slightly turned.... weird!
    Grover Wright
    Flying a KF IV-1200
    ROTAX 912UL

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