1. The DC reduction motor (hard gear reducer manufacturer) produced by the DC reduction motor (DC motor) manufacturer can adjust the speed. If it is not a DC brushless motor, the variable voltage DC power transformer is used for the DC reduction motor power supply system, and the speed of the DC reduction motor can be adjusted by adjusting the power supply voltage; The deceleration and speed regulation of DC motor are two different things. Speed regulation refers to changing the working standard voltage of the power supply system of the DC motor (or changing the basic parameters of the optocoupler circuit of the DC motor) to ensure the purpose of adjusting the transmission ratio, while deceleration (in most cases) refers to installing a reducer gear shaft with a certain deceleration ratio on the output shaft of the DC motor to ensure the deceleration (in addition to increasing the torque);

3. The DC motor has a "brushless motor". The purpose of regulation can be ensured by changing the working standard voltage of the power supply system to supply the reducer. The working standard voltage of the power transformer of the latter power supply system should be as stable as possible (the brushless DC motor can not be regulated by changing the power supply voltage), and the purpose of regulation can be ensured only by adjusting the control board;

4. The control board of Brushless DC motor has two types: side pull type and built-in type. Most of the embedded controller type brushless DC motor can't adjust speed. Whether the brushless DC motor with external controller can adjust speed depends on the structure of the control board.

5. The DC motor with magnet is brushless motor. If the rated current of the motor requires a working voltage of 12V, a 0-12v DC adjustable regulated power supply can be used to speed the motor. A large number of DC motor (DC motor) please care about the official website of interactive multimedia machine!