Bipolar stepper motor

 Bipolar stepper motor are so named mini electric motor because each winding can both directions electricity.So each winding can be N pole and can be the S pole.Stepping motor,it is also known as single winding because each only a single winding,it also referred to as two phase stepper motor,because has two separate coils.Bipolar stepper motor has four generator stator root lead,two each winding.With the same size and weight compared to the single step electrode polarity,bipolar stepper motor has a greater ability to drive,the reason is that the magnetic poles (not ask tap in a single coil) in electric motors 12 volt the field strength is twice the unipolar stepper motor.Bipolar stepper motor of each winding need a reversible power,usually provided by H bridge driving circuit.Because of the bipolar stepper motor than single polarity of stepper motor output torque,so is always used in the design of the space is limited.It is also a floppy disk drive head step into the mechanical system of driver is always adopt the cause of the bipolar stepper wholesalemotor.blogspot.com motor.To use digital multimeter can be quite simple to find two windings.If one could measure the resistance between two lead,then between the two leads are belong to a winding,the other two lines of q is another winding.Bipolar stepper motor of the interval is usually 1.8.Step,that is,200 a week.