Brushless dc motor and stepper motor appearance very similar in the appearance, so, the brushless dc motor and step motor are those differences? Small make up today's science and specially you about
(1)Driving principle of different
brushless dc motor and stepping motor drive principle, brushless dc motor is provided by hall element positioning alternating power control. Stepper motor is driven by single pulse voltage directly, don't need a hall element, can be added to the motor by controlling the number of pulses to precise positioning rotation Angle.
（2)Different control precision
is not the same, on the basis of the principle of driven brushless dc motor is generally used to control accuracy is not high, stepper motor is used to control the accuracy is higher.
（3)Different speed
brushless dc motor speed is much higher than stepper motor; Stepper motor because of driving mode, giving the number of pulses within a certain time is limited, so the stepper motor work speed most commonly are below 500 RPM, more than 500 RPM stepper motor torque loss into a free fall. The brushless motor reversing work by digital signal by hall sensor, without the restrictions of carbon brush, rotational speed can achieve high speed, the dongguan brushless dc motor supplier in the conventional brushless motor speed and parallel levels are do 3000 r/min, but brushless motor speed range is 1500 -10000 r / min。
（4)Using field of different
is the biggest application stepper motor in the nc machine tool manufacturing, because step motor don't need a/d conversion, can be directly to digital pulse signal into angular displacement, it is considered ideal actuators of nc machine tools.
brushless dc motor in the AGV car, pump, logistics sorting equipment, passenger doors, a breakthrough for aerospace equipment, medical equipment and other fields
