Many friends on the Internet are asking what the difference between DC motors and stepper motors are and how they work.

I. Stepping motor

1. Precision is within 5% of the stepping angle, will not accumulate deviation.

2. Need to add a driver to run, the driver signal must be a pulse signal, otherwise the motor will not rotate, the rotation rate and pulse frequency is proportional to.

3. The surface temperature of 80-90 degrees is normal, too high will be demagnetized, affecting the normal operation of the motor.

4. The torque of stepper motor will decrease with the rise of speed ratio.

5. Change the pulse sequence to quickly change the rotation orientation. Commonly used in copiers, plotters, intelligent robots and other machines and equipment.

6. There is no problem when the stepper motor is running at low speed, but it can’t be started beyond a certain rate, and there is a chirping sound.

Second, DC motor

DC motor refers to the DC motor drive electrical energy into mechanical energy, or mechanical energy into DC power energy rotation motor, can complete the DC power energy and mechanical energy between the transformation, DC motor is divided into DC brush motor and DC brushless motor, DC brushless motor need to configure the driver, making the electronics phase change, the cost is relatively high, long life and low noise; DC brush motor cost is relatively low, but requires frequent maintenance, short life and high noise.

Electric motor

These are the characteristics and differences between stepper motors and DC motors, master these related knowledge to ensure stable and efficient operation of the motor.

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