Why must the brushless DC motor controller

We know DC motor through electrical conductor in a magnetic field force and motion, when electrical conductors from a pole is transferred to the adjacent to the opposite pole under, around the conductor magnetic field direction change to reverse, the corresponding by force direction is reverse, at this time, to want to guarantee the conductor continues to move in the original direction, then the direction of the current in the conductor must be changed to reverse, below we together have a look at why brushless DC motor controller:
1, brushless DC motor, through the "controller" reversing. The principle is realized through the change in the sense of Holzer element induction motor rotor magnetic field. When the hall sensor to changes in the magnetic field. (at this time, through electrical conductors are from one pole to the adjacent poles of the hall element will produce a small voltage, through the amplification circuit, control circuit receives the signal, and then send the signal change the direction of the current, power supply is controlled by changing the direction of the current, thereby reversing.
2, a brushless DC motor - through the brush and commutator commutating system. The motor of each conductor connected to the corresponding commutator of a commutator, insulation between commutator. When the commutator is rotated with the motor rotor when energized and reach the aim of reversing the sliding brush and commutator.
That is why the DC brushless motor must have the basic information of the controller, which is a core indicator of the performance of DC motor, the performance of the current direction of the performance of a direct impact on the performance of the motor.
Want to learn more about the DC brushless motor, welcome to inquire: 0755-83011521 (Li Xiansheng)
Shenzhen Haibo Technology (Hongkong) Co., www.hkhaibo.com