The basic principle about BLDC motor

Brushless DC motor is a positive rapid spread of electrical machine type.

It can be used in household appliances, automotive, aerospace, consumer goods, medical, industrial automation and instrumentation and other industries.

As the name of spending, BLDC motors do not have commutator to change direction, but the use of electronic steering.

BLDC motors and brushed excited DC motors and induction motors, there are many advantages

The higher speed range

Three phase BLDC motor is widely used and popular, so below information is mainly about three phase BLDC,

As the photo showed, the appearance, and in fact their winding diagram are much more different.

For most BLDC motor, there are three star-connected stator windings,each of them was conneted with muti wires,and the poles uniformly distributed, there are two winding diagrams, trapezoidal and sinusoidal motor, different diagram create different EMF( Electromotive force), sinusoidal motor have smooth torque and required more copper wire.

We shall choose the appropriate stator motor  according to the ability to control power output. Rated voltage 48 volts or less of the rated voltage applied to the vehicles, robots and robotic arm .100 volts or higher rated voltage motor applied to small household appliances,automation and industrial applications