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  • Use a Treadmill DC Drive Motor and PWM Speed Controller for powering tools

    a DC motor can also be a generator. a spinning DC motor generates a current and voltage. The difference between applied power to the motor and generated power from the motor determines the motor drive. The controller measures the motor feedback to determine the speed of the motor. A variable resistor or circuit controls desired drive to the motor. The controller balances the applied drive and feedback signal to control drive to the motor attaining a more or less somewhat constant speed. The controller adds drive signal to maintain speed by applying more drive as needed up to the maximum drive available from the controller in maintaining constant speed. The feedback from the motor is somewhat out of phase from the controller drive which is how the controller determines the proper am...

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    a DC motor can also be a generator. a spinning DC motor generates a current and voltage. The difference between applied power to the motor and generated power from the motor determines the motor drive. The controller measures the motor feedback to determine the speed of the motor. A variable resistor or circuit controls desired drive to the motor. The controller balances the applied drive and feedback signal to control drive to the motor attaining a more or less somewhat constant speed. The controller adds drive signal to maintain speed by applying more drive as needed up to the maximum drive available from the controller in maintaining constant speed. The feedback from the motor is somewhat out of phase from the controller drive which is how the controller determines the proper amount of applied drive signal.

    Two wires are + and - DC drive to the motor and should labeled as such on the board. Two wires to the motor are over temp sensor. Should be three wires or terminals labeled "H", "L", "W". These wires hook to a potentiometer to control speed. H wire goes to one side of the variable resistor, L goes to the other of the pot, W wire goes to the center or wiper terminal. 10K variable resistor should work good. A higher value may make more sensitive and lower may less sensitive to speed changes. Two wires attach to AC power to the hi-lo terminals or labeled AC.

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