BLDC Motor

What is Brushless DC Motor?

The brushless DC motor (BLDC motor) is actually a three-phase synchronous motor: The rotor follows a rotating magnetic field, and its motion synchronizes with the AC voltage applied to the winding. Usually in the brushed DC motor, after applying DC voltage, the mechanical inverter (brush) in the motor will generate AC power independent of the speed. Different from the brushed DC motor, brushless DC motor cooperates with the electronic drive controller to replace the function of the brush and convert the fed DC power into AC power, which achieve the performance equivalent to the brushed DC motor without the brush with limited service life. Therefore, BLDC motors are also called EC (electronic commutation) motors to distinguish them from mechanical commutation motors that include brushes. In many applications, Brushless DC motor is a perfect solution to replace a brushed DC motor or a commutator motor.