Summary:...
For a stepper motor, its input is in the form of current. The output is essentially a normal form of mechanical movement. The speed of the shaft is directly proportional to the frequency of the current.
DC motors convert electrical energy into mechanical energy. The speed can be controlled by the strength of the supplied voltage or current. It follows Fleming's left-hand rule.
Main differences:
1. The stepper motor operates in an open loop, while the stagnant motor operates in a closed loop.
2. The stepping motor is easily controlled by the microprocessor and control equipment. However, the control of DC motors is difficult.
3. The stepper motor is a brushless motor, but the DC motor contains brushes that cause wear, tearing and sparks.
4. The movement of the stepper motor is gradually increased, and the resolution is limited by the step size. The DC motor performs continuous displacement. At the same time, it can be precisely controlled and accurately positioned.
5. For reaction control, the response speed of the DC motor will be faster than that of the stepper motor.
6. If it is overloaded, the stepper motor is easy to make mistakes and lose control. However, the relay and overload protection equipment of the DC motor will protect the motor from damage in this case.
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