automated 4-stroke kill switch using PIC

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  1. - 13th January 2009, 18:19 #1
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    Wink

    Hi, Mitch

    generally, the Kill switch of a CDI shorts the HV Winding ( 250-300 AC Volts ) without any fear ...

    Now electronic ignition modules may have a special wire for that ...

    I believe RELEASING the relay supply to stop would be a much safer practice ... but it's you to decide.

    Alain
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  2. - 13th January 2009, 18:33 #2
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    Quote Originally Posted by Acetronics View Post
    Hi, Mitch

    generally, the Kill switch of a CDI shorts the HV Winding ( 250-300 AC Volts ) without any fear ...


    Alain
    Well Alain, at least we agree on the voltage range . . . Kettering (points type) ignition shorts the primary winding . . . CDI . . . I defer to Alain's experience.
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  3. - 13th January 2009, 19:45 #3
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    Hi, Joe

    YES, the HV winding !!! which is a special winding in the "generator", just dedicated to produce the "400vDC" to charge the CDI capacitor ...

    Want to see ( and hear her roaring ... ) my Kawasaki KH500 tri-cylinder ???

    Alain
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  4. - 13th January 2009, 22:51 #4
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    Quote Originally Posted by Acetronics View Post
    Hi, Joe

    YES, the HV winding !!! which is a special winding in the "generator", just dedicated to produce the "400vDC" to charge the CDI capacitor ...

    Want to see ( and hear her roaring ... ) my Kawasaki KH500 tri-cylinder ???

    Alain
    NO No I believe you, but are we to assume it is a late model motorcycle? I think we should do as we did and present all possibilities since we do not know what he is working on. BTW 400v is high voltage compared to 5v, compared to 30,000 volts I would call it primary voltage. Anyway what matters is that we are helpful to the OP. Oh BTW, nice bike!
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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  5. - 14th January 2009, 21:08 #5
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    Smile Kill switch

    Thanks guys for all your info, every time i post a question you are always their with advice.

    In my opinion their must be a secondary winding inside the motor that would step down the voltage to 400vdc because every kill switch uses normal 16 gauge wire rated for 600v. I will just take a chance and measure it

    thanks alot guys here is the link i read that from ground to to the spark plug their is 30000 volts.

    http://www.jetav8r.com/Vision/Ignition/CDI.html
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