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Recent content by sanborn

  1. sanborn

    Motor speeds and voltage

    The simplest relationship between voltage and speed is back EMF. This is usually given in the motor's data sheet as V/kRPM or V/Rad/s. If the back EMF is say 20 V/kRPM and you apply 20 Volts to the motor it will turn about 1000 RPM with no load. Volts = Speed * Back EMF To make things a...

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