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Hall sensors and transistors.

For the life of me I cannot remember or find how to use a hall sensor to turn on a transistor.

I always forget if I use a pnp or a npn for the output of the hall sensor.


  • With the hall connected to a PNP, the Pnp turns off when the hall turns on.

    Now I remember why I use mechanical switches.

    So I got things rigged on a small scale.

    Like I say it is a motor/generator.

    I did notice when I put the LED light on the pickup coil it is not until it hits a minimum speed that it starts to flash.

    Next is to rebuild the capacitor bank for the double half wave voltage doubler.

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