Study of step motor in our country and manufacturing began in the late 50 s, from the late 50 s to 60 s, mainly is the institutions of higher learning and scientific research institutions to research and use some device or a small amount of product development. In the cultural revolution in China started mass production and application of stepper motor, such as jiangsu, zhejiang, sichuan, Beijing, nanjing, etc all have put into production, and are used in various fields, and the driving circuit all semiconductor devices are completely localization, at that time is the logic circuit, composed of discrete components, and capacitance coupling input counter, trigger, circular allocator. Medium pressure of high power semiconductor devices are completely localization. In the early 70 s, the stepper motor production and research is a breakthrough, except reflected in the drive for the long-term development of the design, the design of reactive stepper motor research and development to a higher level. In the mid - 70 - s to mid - 80 - s for finished product development phase, new varieties of high performance motor has been developed. Since the mid - 80 - s, due to the stepper motor accurate model to do a lot of research work, all kinds of hybrid stepping motor and drive as the products are widely used. At present, the manufacturer of stepper motor is many, but has the professional and technical personnel, can be developed, developed at the factory are very few, most manufacturers only a, 20 people, even the most basic equipment. Only in a stage of blind imitation. This gives households in product selection, use lots of trouble. Although the stepper motor has been widely used, but stepping motor does not like ordinary dc motor, ac motor under normal use. It must be driven by double annular pulse signal and power circuit of control system can use. So good with step motor is not easy, it involves the mechanical, electrical, electronic and computer and many other professional knowledge. Abroad on high-power industrial equipment driver, the current basic does not use the stepper motor with high torque, because from the power circuit of the cost, efficiency, noise, acceleration, absolute speed, system compared with the maximum torque ratios, moment of inertia is not cost-effective, or use dc motor, motor encoder high overall technical and economic indicators. A few advanced applications, use hollow rotor motor, ac motor. Abroad for small power occasions, also use the stepper motor, such as some industrial equipment, industrial equipment, printers, copy, printing, automatic teller machine. Domestic in the past is to use large torque stepper motor to realize numerical control machine tool, the strength of company now also adopts ac motor drive nc machine tools, the main gap in the drive device, is overseas for ac motor control theory and engineering analysis and application ability, advanced control theory as the software that is written in the internal controller. Best-selling products: step progress motor the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
