With the origin dating back to the electromagnetic engine in the 19th century, the modern stepper motors were first applied to naval vessels in the 1920s, then were developed in the 1950s, and became popular in the following decade. Stepper motor drivers are small motors that are used in a variety of machines that require rotational volume control. Servo motors are popular in industrial applications, but stepper motor drivers are no less popular than they are, and in fact, users are increasingly tending to use stepper motor drivers due to their numerous advantages.

Servo motors and other small motors are considered to have complex structures and operations. On the contrary, Chinese stepper motor driver is simple in structure, easy to operate and manage, and enjoys a reputation in the automotive industry for its outstanding five benefits as follows.

1. Incredible stopping accuracy
When motors start to rotate, the kinetic energy they acquire is a combination of linear and rotational energy, so they acquire some harmful inertia, which should be prevented immediately to avoid undesirable results in the rotating machine.

However, the stepper motor driver has excellent stopping accuracy, allowing for precise regulation in open-loop operation of the stepper motor. When the stepper motor driver is used for turntable motion, the stopping accuracy is approximately ±0.05° without load. The internal operation of the stepper motor driver depends on the stepping of the motor, so no additional encoder is required for additional operation, which makes its structure simple.

2. Excellent low speed range
Stepper motor drivers are small in size, and in such a small system, excellent average value and low speed scaling is necessary. Maximum torque in a small system is a popular feature of stepper drivers, which is also the difference between stepper drivers and servo motors. Servo motors are motors that produce smooth torque in medium to high speed operation, while stepper motor drivers produce high frequency torque in low to medium speed operation, which gradually decreases as the speed range increases.

Stepper motor drivers can also be used for high speed operation, but with limited cycles. Typically, high speed ranging operations are avoided due to high power losses, low system control rates, and increased motor stopping inaccuracies.

3. Extraordinary sensitivity
The amazing sensitivity to a given command is one of the main characteristics that make Chinese stepper motor driver the best choice for machines where delays in executing the command can be fatal. The reason for the fast response lies in the structure of the stepper motor driver, through which the open-loop control that transmits the command to the system has a very high speed for decoding the command.

In the case of servo motors, the delay arises from the encoder until the command is properly encoded by the encoder, so the propagation delays of some signals add up to show significant hindrance at a much higher level. This is why mechanisms like conveyors use stepper motor drivers in order to operate better without any problems.

4. Appropriate use
As mentioned before, stepper drivers can be used for turntable operations and positioning of graphic verification processors that do not require unnecessary vibration. The machines where it is difficult to install servo motors (such as cam drives) can be fixed by stepper drivers.

5. Cost saving
The structure of the servo motor weighs more than the stepper driver in several aspects, and the latter costs less than the former, so the stepper driver can reduce the expense of the machine without affecting the model.

Servo motors are more popular in industrial sites, but stepper drivers are not inferior to servo motors, and in some cases even better. Stepper drivers will become more and more widespread in industry with modern technological innovations and low prices.

ACT Motor, one of top 10 China nema 23 stepper motor suppliers, has been specialized in the production and sales of hybrid stepper motors, DC brushless motors, gear box motors, servo motors, drives and related electrical control systems. For any further information, just contact us.