Many friends should be familiar with DC motors. Generally speaking, the speed of DC motors can be controlled and adjusted. Below are some methods to change the speed of DC motors, hoping to be useful to everyone!
There are three control methods for the speed of DC motors:
1. Adjusting the armature voltage by changing the armature voltage to change the speed belongs to the constant torque speed regulation method, which has a relatively fast response speed and is suitable for systems that require extensive stepless smooth speed regulation.
2. Changing the main magnetic flux of the motor will weaken the magnetic flux and cause the motor to change its speed from the rated speed upwards. This belongs to the constant power speed control method, and the dynamic response is relatively slow. Although the speed can be adjusted steplessly and smoothly, the speed range is very small.
3. Change the resistance R of the armature circuit and connect the resistance of the motor armature to adjust the speed, which can only be adjusted step by step. The smoothness is poor, the mechanical characteristics are soft, and the efficiency is relatively low.
The speed regulation of DC motors is a very rigorous issue, so it is very important to master the methods of changing the speed of DC motors. I hope everyone remembers these methods!