Haibo technology mainly R & D and manufacturing of stepper motor drives, servo drives, brushless DC drives, stepper motor, servo motor, brushless DC motor controller and other products. The stepper motor is also known as the pulse motor, including hybrid stepper motor (HB), reactive stepping motor (VR), permanent magnet stepper motor (PM), etc.. Three types of stepper motors are as follows: (1) hybrid stepper motor: also known as permanent magnetic response, permanent magnet induction stepper motor, mixed with the advantages of permanent magnet and reactive. The stator and four phase stepper motor no difference (but the two poles of the same phase, and the two pole winding of N produced, S must have the same polarity), the rotor structure is more complex (rotor internal cylindrical permanent magnet, two coats of soft magnetic materials, surrounding a small Chi Hecao). Usually two or four; to supply positive and negative pulse signal; the output torque is large (permanent magnet power consumption is relatively small); a permanent magnet small step angle (typically 1.8 degrees); power without positioning torque; starting and running high frequency; is the development of a rapid step motor. (2) reactive stepping motor: also known as induction, hysteresis or reluctance stepping motor. The stator and the rotor are made of soft magnetic materials, large magnetic pole evenly distributed on the stator with multiphase excitation winding, stator and rotor evenly distributed around the teeth and grooves, permeability changes using electricity generated torque. Is generally three or four, five or six phase; can achieve high torque output (larger power consumption, current up to 20A, higher driving voltage); small step angle (the minimum can be 1/6 degrees); power without cogging torque; small damping motor, single step operation (the pulse frequency is very low when the oscillation time longer); start and run a higher frequency. (3) permanent magnet stepper motor: motor rotor comprises a permanent magnetic material, a multiphase excitation winding stator is made of soft magnetic materials, stator and rotor teeth and no surrounding groove, energized by permanent magnet and stator current magnetic field interact to produce torque. Usually two or four; the output torque is small (smaller power consumption, current driving voltage is less than 2A, 12V); large step angle (e.g. 7.5 degrees, 15 degrees, 22.5 degrees and so on); power has a certain torque starting and operating frequency is low.
