2014年8月19日星期二

Single polar stepper motor step way


Single polar stepper motor can use three step method:single and double taps,half way.Single shot
every time step approach refers to only give a winding electricity,as a result,the rotor rotation,and
movement to the permanent magnet rotor with opposite polarity The position of the winding

alignment.Double beat way to two winding electricity at the same time,thus lead to the acmotortrading.blogspot.com rotor rotation,and arrive in two permanent magnet electric winding the middle point of balance.Double shot method has the advantage of more than single shot way 41.4% of the output torque,but the price is twice cost in energy,because it has two phase winding electricity at the same time.Finally,make the way to work,let two winding alternately in electricity power with a single winding way.Half way of the output torque is smaller than double film method,with the design is different,between 15% - 30% of change,but it can get double way clap twice stepper resolution steps (twice a week).Given in table 1 and table 3 under single phase induction motor the three step way winding process of electricity.To make a stepper motor reversal reverse can just put the electricity process.Bipolar stepper motor Bipolar stepper motor are so named because each winding can both directions electricity.So each winding can be N pole and can be the S pole.It is also known as single winding stepping motor,because each only single pole A winding,it also referred to as two phase stepper motor,because has two separate coils.Bipolar stepper motor has four 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 intermediate tap single coil) in the field strength is twice the unipolar stepper motor.Bipolar stepper motor of each winding to a reversible electric 6v electric motor The source,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 drive head step into the mechanical system The driver is always adopt the cause of the bipolar stepper motor.To use digital multimeter can be quite simple to find two windings.If one could measure the resistance between two lead,so the two root cause Line is between a winding,the other is another winding between two lines.Bipolar stepper motor step distance is usually 1.8 °,which is 200 steps every week.

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