05-27-2017, 04:10 PM
Mr. Ken, I am not a motor specialist, I only know the principles how they should work. 
Generally the speed of a DC motor is proportional to the applied voltage while torque is proportional to the current.
The speed of a DC motor can also be increased (above the nominal speed) by field weakening, which reduces the current in the field winding.
Generally the speed of a DC motor is proportional to the applied voltage while torque is proportional to the current.
The speed of a DC motor can also be increased (above the nominal speed) by field weakening, which reduces the current in the field winding.