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Pulse width modulator questions

Discussion in 'General Electronics Discussion' started by otsismi, Mar 7, 2014.

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  1. otsismi


    Mar 7, 2014
    I'm looking to make a coil winder with a dc motor, pulse width modulator for speed control, and a digital counter. Most individuals with this setup use a magnet and reed switch to activate the dry contact circuit in the counter. But the counter also has a PNP and NPN counting mode.

    Is there a way to wire one of these modes to the PWM so that there is a direct link from the speed of the motor to the counter?
  2. Laplace


    Apr 4, 2010
    It would seem that a counter used with a coil winder would have the purpose to indicate the number of turns of wire that had been wound on the coil. The link between the motor PWM and the turns on the coil would seem to be tenuous at best.
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