Three factors controlling the speed of discount Mini Dc Motor
DC motors are the most widely used type of motors. They are also the earliest. DC motors must be used on many machines. However, the types of DC motors used in many devices are different and may involve DC. The motor speed needs to be different. If you need to adjust the DC motor speed under these conditions, how should you adjust it? In order to adjust the speed of the DC motor, Shenzhen Longhui Motor has a lot of experience in this convenience, mainly summarized as the following three points:
There are three ways to control the speed of a DC motor:
(1) Adjust the armature voltage. Changing the armature voltage to change the speed, it is a constant torque speed control method, and the dynamic response is fast, which is suitable for a system that requires a large range of stepless smooth speed regulation;
(2) Changing the main magnetic flux of the motor can only weaken the magnetic flux and make the motor shift upward from the rated speed. It is a constant power speed control method, and the dynamic response is slow. Although it can be steplessly smoothed, the speed regulation range is small;
(3) Change the resistance of the armature circuit R in the outer series of the motor armature to adjust the speed, only the stage speed regulation, poor smoothness, soft mechanical characteristics and low efficiency.
