Abstract: This paper presents design of Brushless DC motor (BLDC) driver for electrical. The drive system includes converter to produce the required voltage for BLDC. Hall Effect sensor is needed to decide on the position of the permanent magnet to match it with the right BLDC coil. The Hall Effect sensors are displaced by 120o which will produce voltage signals on the output displaces by the same phase shift. The generation of converter switching signals depends on the signals supplied by Hall Effect sensor for synchronization. Simulink software is used to verify the design validity by running several tests on the system operation. The simulation result is shown to validity verification.

Keywords: Brushless DC motor; Three phase inverter; inverter switching, Simulink.