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Brushless DC motor maintenance trick

Date:2018-03-31 Author: Click:

The brushless DC motor has advantages of good adjustment and starting performance of the DC motor, simple structure of the asynchronous motor and no need of maintenance, and thus it is a highly reliable motor speed control system.

The motor controller is the command center of the normal operation of the brushless DC motor and realizes various speed-controlling servo functions. It mainly performs the following functions: logic synthesis of various input signals to provide various control signals for the drive circuit: PWM pulse width generation Modulate the signal to realize the speed regulation of the motor: adjust the speed loop and current loop of the motor; make the system have better dynamic and static performance; and realize fault protection functions such as short-circuit protection, over-current protection and under-voltage protection.

The controller is the driving system of the electric bicycle, which is the brain of the electric bicycle. Its main function is to improve the efficiency of the motor and the battery, save energy, protect the motor and the battery, and reduce the electric bicycle under the premise of ensuring the normal operation of the electric bicycle. The degree of damage when damaged. Brushless DC motors play a key role in electric bicycles. Therefore, the first point to improve the quality and life of electric bicycles is to start with electric motors. The biggest potential danger of electric motors is short circuit and overcurrent. Therefore, to ensure the life and quality of the electric bicycle, it is necessary to design the overcurrent protection of the brushless DC motor of the electric bicycle.

For overcurrent protection of DC brushless motors, overcurrent protection of the motor can be performed using a self-healing fuse with an advantageous price. Self-recovery fuses are used to protect the motor with automatic protection after the protection, easy installation, price concessions and other reasons. Comprehensive advantages The use of self-healing fuses for motor protection is the best choice.


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