Brushless dc motor is a kind of high performance, its the biggest characteristic is the external characteristic of dc motor without brush mechanical contact structure, composed of dc brushless motor, it USES the permanent magnet rotor, no excitation loss, fever and installed on the outside of the stator, armature winding heat easily.
here today and share about the main difference between the two? Help people better understand the difference between two:
1. Dc brushless motor is higher than the speed of the stepper motor;
2. 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 pulse number, dongguan motor, to accurate positioning rotation Angle;
3. Based on driving principle is different, so the general brushless dc motor is used to control the accuracy is not high, stepper motor is used to control the accuracy is higher.
stepper motor is the electrical pulse signal into angular displacement or line displacement of the stepper motor open-loop control yuan. In the case of the overload, motor speed, stop position depends only on the pulse signal frequency and pulse number, and not affected by load change.
