Monthly Archives: March 2011

Motor Performance Curves

 Two performance curves are critical to defining the motor formants: the speed versus torque curve, and the current versus torque curve.  Developing the equation for motor speed versus torque curve starts with a motors back EMF constant, Ke. The simplest … Continue reading

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Defining the Motor Requirements

Unless the gearbox is already designed, the actuator gearbox should be designed concurrent with the motor selection.  This allows the overall system to be optimized.  What being optimized means depends upon application.  Optimal may mean lowest-cost, low size, or lowest … Continue reading

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