The general overview of used control technique is
shown in Fig.2 and consist of the following blocks: threephase
BLDC motor, BLDC power stage (driver-bridge),
PWM and switch converter, position detection, speed
measurement, PC I/O card, DCM controller.
The BLDC motors are a type of synchronous motor.
This means the magnetic field generated by the stator and
the magnetic field generated by the rotor rotate at the
same frequency. BLDC motors do not experience the
“slip” that is normally seen in induction motors. Unlike a
brushed DC motor, the commutation of a BLDC motor is