BLDC motor controller by the converter

BLDC motor working principle

     BLDC motor controller, including the Ministry of Power and Control Division as below: Power Ministry to provide three-phase power to the motor, control by the Ministry of the demand for converting the input power frequency. Department of directly to the DC power input (typically 24V) or AC (110V/220 V), if we have to first AC input is converted to DC by the converter. Either DC or AC input to input into the motor coil will be required before the DC voltage converted by the inverter 3-phase voltage to drive the motor. Inverter is generally composed of six power transistors. Six power transistors connected to the motor, as the control flow through the motor coil switch.

    Make the motor turn up, the Ministry must first control the Hall IC to the motor rotor current location, then the stator winding in accordance with the decision on (or off) power transistor converter in order, so that current flows through the sequence motor coil forward (or reverse) rotating magnetic field, and interaction with the rotor magnet, so you can make the motor clockwise / counterclockwise rotation. When the rotor rotation to another group of Hall IC signal out of position, control of the Department again on the next set of power transistors, and so the motor can continue to rotate the same direction until the control of the Ministry decided to stop the rotor is shut down power transistor ; to reverse the rotor power transistor on the opposite order.