With the continuous improvement of the level of industrial automation and the development of power electronic technology, medium and small power motors are widely used in industrial and agricultural production and people's daily life. Especially the appliance industry, office equipment and FA automation industry use stepper motor and servo motor is particularly important. In the auto industry, the requirements of high precision, fast speed, high responsiveness, nature in the application of servo more advantages, but also in some common situations, such as printers, fax machines, lighting device, stepper motor application high, these two kinds of machines have their own advantages, they are complementary to each other in actual use; understanding the structure, principle, motor control, improve the Engineer in the selection of the correct understanding and selection of motor skills.
Key word Stepper motor servo motor Automation industry applied technology