Speed and position control of BLDC motor using internal hall sensors and hardware design

摘要

In this research, a system was designed and implemented on hardware to control speed and angular position of shaft of the gear box with reduction ratio 10:1 attached to a BLDC motor of 3000 RPM by taking feedback from internal hall sensors of motor. A microcontroller processes feedback and drives motor to its target angular position which is fed to it by user via USART. By processing same hall feedback at same time, speed of motor can also be controlled. System can be used for replacing costly servo motors in low precision application in industry such as box picking and placing. Also stepper motor can be replaced by this system to achieve more accurate position control as the system involves feedback.