Steps for nearly 20 years, progress in ac motor into the technology progress soon, the digital communication step into the system in the late 80 s was mature and rapid development, has yet to be fully equipped with wide speed range, high steady speed precision, fast dynamic response and four quadrant operation good technical performance, such as ac instead of dc stepping wishes come true. good speed regulating performance once possession stepper system dominated by dc motor, is essentially a combined with the mechanical reversing device of synchronous motor, the mechanical reversing device is a series of position control circuit switch; By the method of mechanical winding circuit to switch, even though it's structure and manufacturing technology is very mature, and very compact, but inevitably brings spark and brush mechanical friction, the disadvantages of the things is to go forward fundamental flaws will be overcome, change into electronic commutation device is the natural result of progress of the development of traditional dc motor, which is today the BLDCM or AC servo, its essence is a typical structure of permanent magnet synchronous motor, the armature winding (Usually three phase)Three-phase full bridge circuit composed of power switch tube or module power supply, the bridge arm on and off according to the rotor position sensor signals to control the power switch tube and position sensor of electronic commutator, have the same effect and mechanical commutator, nature is running characteristic of dc motor, stepper motor is a new generation of visible communication of dc motor, which USES electronic commutation to replace the mechanical reversing device of direct current motor, known as brushless dc motor or brushless dc stepper motor more able to reflect the nature and characteristics. from another Angle, as the stepper motor and synchronous motor from the open loop control system has developed to the closed loop control system more perfect, the result of the so called AC servo is permanent magnet synchronous motor (永磁同步电动机)Stepper system also not wrong, only then the commutation circuit as an electric motor and control part and not part of the body. AC servo motor is the new achievement of the development of the technology, its emergence and development of the completely accords with the objective law of things development, therefore become the mainstream of today's motion control class motor products are natural. 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:
