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Re: Why Hasn't first gone Brushless?
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Originally Posted by Andrew Y.
Cogging is what your thinking about, and this goes to cost again...low cost motors and controllers tend to have SEVERE cogging issues at low throttle
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That isn't what I was thinking of. Sensorless motor controllers work by measuring zero crossing point of the back EMF. If the motor isn't moving there is no back EMF which means you are essentially driving blind as to what position the motor to the windings.
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