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  • Author Author: garengllc
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Christmas Spirit Crank

garengllc

OK, as promised, here is a simple schematic (pretty stripped down as I didn't have time to dust off Orcad).  I tried to lay it out so that it can be followed left to right, top to bottom.  I think I captured most of the big points, but please point out something if you think I missed it (or have a question).

 

SCHEMATIC IS JUNK FOR BEING A COTTON HEADED NINNY MUGGINS! WILL ADD A LINK TO AN UPDATED ONE WHEN I POST. LEAVING THIS UP AS A LEARNING EXERCISE, DO NOT USE!

 

Here is the updated schematic: Christmas Spirit-tron updated schematic (Christmas Spirit Meter)

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  • Hi Jason,

     

    I suspect you will want the LEDs above the MOSFETS so that your gate voltage doesn't have to be so high. If the Source of the MOSFET is at ground and the Drain of the MOSFET is being supplied by the cathodes of the LEDs then a digital high from the 3914 to the Gates will turn the MOSFETS on.

     

    John

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  • Hi Jason,

     

    I suspect you will want the LEDs above the MOSFETS so that your gate voltage doesn't have to be so high. If the Source of the MOSFET is at ground and the Drain of the MOSFET is being supplied by the cathodes of the LEDs then a digital high from the 3914 to the Gates will turn the MOSFETS on.

     

    John

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