Practical suppliers of new bldc motor supplier, the so-called new brushless DC motors are closely related to the development of electronic technology, microelectronic technology, digital technology, automatic control technology and material science.It is not only limited to the field of AC and DC, but also involves in the field of electric, power generation energy conversion and signal sensing.There are many kinds of new brushless motors in the motor field, but the brushless motors with good performance are not widely used because of the limitation of the price.The main new brushless motors are explored and studied in the following sections.
Operation is to let the motor spins, the first control department must according to the hall - sensor sensing the position of the motor rotor, and then according to the stator winding decided to open (or closed) inverter power transistor, the order of the upper arm power transistor) and the lower arm power transistor, the current flowing through the motor coil in a sequence forward (or backward) a rotating magnetic field, and interact with the rotor magnet, so can make motor chronological/reverse rotation.When the motor rotor turns to the position of hall-sensor to sense another set of signals, the control department starts the next set of power transistors again. In this way, the cycle motor can continue to rotate in the same direction until the control department decides to stop the motor rotor, then the power transistor is closed (or only the lower arm power transistor is opened).To the motor rotor reverse power transistor opening sequence reverse.
