With the powerful functions and decreasing costs of electronic components, the application of stepper motors and brushless dc gear motor is becoming more and more common. Although according to its structure and driving principle, the stepper motor is a special DC brushless motor, the stepper motor belongs to the control type motor, and there are many differences between them.
In terms of structure and construction:
A brushless dc gear motor consists of a motor body and a driver and is a typical mechatronics product. Brushless motors are motors without brushes and commutators, also known as commutators motors. The brushless dc gear motor has the characteristics of excellent linear mechanical characteristics, a wide speed regulation range, large starting torque, a simple control method, electronic commutation instead of mechanical commutation, no wear, no spark, and greatly reduced noise.
The Stepper motor can be used as a special motor for control and is widely used in various open-loop control because there is no accumulated error. Generally, the accuracy of the stepper motor is 3-5% of the step angle, and it does not accumulate. Stepper motor torque decreases as speed increases. The stepper motor can run normally at low speed, but if it is higher than a certain speed, it will not start, and it will be accompanied by a whistling sound.
When choosing motors such as stepper motors and brushless dc gear motors, you can compare the characteristics and performance of these two motors, and then decide which machine to choose according to the needs of users.