DESIGN AND DEVELOPMENT OF MOTOR CONTROLLER (PMBLDC MOTOR CONTROLLER FOR RADIATOR FAN APPLICATION)

A brushless DC (BLDC) motor control based on rotor position sensing scheme is discussed in this paper. A PIC microcontroller is employed to generate pulse width modulation (PWM) signals for driving the power inverter bridge. Parameters required for power PWM generations have been programmed, which provide flexible and online source code modifications in accordance with the motor and circuit requirements. Hardware implementation and simulation results show the effectiveness of the developed motor drive. The flexibility offered by the developed motor control and drive enables the implementation of difference control algorithms for improving the output characteristics of the BLDC motor.