How is a brushless DC motor controlled? What is the principle and method of control?

With the rapid development of the motor industry, brushless motor production technology is becoming more and more mature. Brushless DC motors, as common motor products, are gradually being used in a wide range of applications, including household appliances, aerospace, office intelligent equipment and other fields, and are popular among customers!

Many friends often ask to brushless DC motor is how to control? How to control the principle and method of control?Vacuz the following is a simple to introduce it!Vacuz hope to help you!

1. Voltage control, this is a common brushless DC motor control method, mainly adjust the supply voltage to control the motor speed, the more common technology is pulse width modulation (PWM), change the duty cycle of the PWM signal to adjust the average control voltage of the motor.

2. Phase sequence control, brushless motors have three phases, change the order of energization of each phase of the motor to control the steering of the motor.

3. Sensor feedback control, this way is more refined, using position sensors to detect the rotor position, and then the signal feedback to the controller, according to the rotor position information, to control the motor rotation mode, the control mode is more complex compared to the first two kinds of, generally commonly used in high-precision, high-speed applications, more advantageous!

How is a brushless DC motor controlled? How is the control principle and method? The above has been a simple explanation, no matter what control method, mainly according to the needs and application scenarios, choose the control method suitable for their own, to realize the motor speed and steering control.

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