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According to the principle of torque generation, stepper motors can be classified into exciting type, reactive type and hybrid stepping motor. According to the number of stator, stepper motor can be divided into single stator, double stator and multi stator stepper motor. The stepper motor can be divided into three phase, four phase, five phase and six phase stepper motor according to the number of excitation phases. The stepper motor can be divided into radial phase separation and shaft phase stepping motor according to the distribution rules of each phase winding.
Stepper motor is a type of control motor that can get on speed control and positioning control without using a feedback loop, which is the so-called open-loop motor control. Its application mainly focuses on OA (Office Automation) machines and FA (Factory Automation) machines that solve strong office services, and is widely used in medical machinery, measuring instruments, cars, game machines and robotics, etc.
If one is trying to select the driver for the stepper motor that one is using then it is wise that they know certain facts regarding it. As one reads through they will understand certain facts which need to be known regarding these drivers.
The industry floors are witnessing a seismic shift as the automation takes center stage, not as an idea, but as an actuality. Well, a few years back the automation seemed like a far-fetched reality. And industries where precision control was of primary importance heavily relied on servo motors because stepping motors were not able to meet the demands. However, with the advancement, the stepper motors have managed to find their way onto the floor.
Electrical motors contain a part which is known as brushes, these brushes act as a contact between the power supply and the rotor. While rotating at high-speed, rotors can damage the brushes, so after a limited amount of use, they should be replaced.
A bipolar stepper motor is the type of stepper driver which has two poles in its stationary part known as a stator, which is where it gets its name bi-polar. They fall under the category of plain brushed DC motor which has a commutator attached to it for sound ac-dc signal operation. The magnetic field used for rotating the rotary part known as rotor can be generated through a permanent magnet or field coil.
Stepper motor linear actuator is a device which is used to produce linear motions with the help of stepper driver. Stepper driver is motor which produces rotational motion. Linear actuators use these rotations to achieve linear motion. Linear actuators have a wide range of usage in various types of machinery, ranging from computer disk drives, printers to valves, dampers, etc. and many other features where linear straight is required.
Motors are used for rotator motion in any machinery. Various kinds of motors are available in the market which ranges in size from as small as a wrist watches motor too as large as tunnel borers. Servo motors, BLDC motors, stepper driver etc are an example of small size motors. In small applications, servo motors are widely accepted for various operations. But the problem with a servo motor is that its operations are not as synchronous as required in some cases. For those cases, stepper drivers were built. The following article deals with the construction of stepper driver to understand how it does work.
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