Analysis of BLDC Motor Control Algorithm

BLDC (Brushless DC) motors, also known as brushless DC motors, are widely used in various automation equipment. Its control algorithm mainly involves three aspects: first, predicting the rotor position through Hall effect sensors or back electromotive force; second, controlling the motor speed by adjusting the PWM (Pulse Width Modulation) signal; and third, adjusting the torque by changing the motor current. In practical applications, different control strategies can be selected according to different needs. For example, for applications that require precise control, Hall sensors can be used to obtain rotor position information; for cost-sensitive applications, sensorless control can be used to predict the rotor position through back electromotive force. Through reasonable control algorithm design, high-speed, efficient, and high-precision control of BLDC motors can be achieved.