China stepper motor driver factory tells you step motor detailed history summary.
The stepper motor was invented abroad. In China during the Cultural Revolution, for example, Jiangsu, Zhejiang, Beijing, Nanjing, and Sichuan were all manufactured and used in various industries, and all of the driving circuits were completely semiconductor device, at that time, it was a logic circuit composed of discrete components, as well as a counter with capacitive coupling input, a trigger, and a ring distributor. The medium pressure Power semiconductor device are also fully domestic. At that time the most widely used is the wire cutting machine, are fast wire walking. The X-Y table screw on a wire cutting machine is driven by a stepper motor. At that time, the blueprint was open to the public, to give a blueprint of the cost. The original circuit design, mechanical design, motor design of the ancients, there should be users to their names and personal resume, work experience posted. At present, there is no use of large torque stepper motor in high power industrial equipment driving abroad, because the cost, efficiency, noise, acceleration, absolute speed, system inertia and maximum torque ratio of the driving circuit are not cost-effective, still using DC motor, plus motor encoder overall technical and economic indicators are high. Some of the more advanced applications use a hollow rotor motor, an AC motor.
