Personnel engaged in the work of step motor research design to know, this kind of electric opportunity because of low resolution is limited by its own manufacturing process exists, lack of flexibility, when running in low frequency vibration, noise, higher shortcomings, and subdividing motor drive control, would be able to overcome these shortcomings in a certain extent. So how to scenes of this motor driver need to control? Initial control of the stepping motor phase current is implemented by hardware, and control methods mainly include one or two, one is to use multiple power switch current power supply, and superimposed on the winding current, in order to reduce loss of power tube. Another kind is to the pulse signal superposition, then through power tube linear amplifier, current step. The first method because the route is more, so the device, large volume, although the second method has the advantages of less device, but also there is a high power tube power, low system power of these shortcomings. It is because of the early motor subdivision drive control technology not only there are a lot of disadvantages, so the two methods are phased out, to now are mainly adopts chopping constant current drive, pulse width modulation driving, constant amplitude current vector even rotation drive control. Through the technical application can greatly improve the operation precision stepper motor running, and make the motor in the field of medium and small power applications, presented the high-speed and motors this two obvious development trend. 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:
