What is a stepper motor?
Article Source:PoweredPopularity:6918Addtime:2016/4/9 12:01:43【SmallInLarge】
Stepper motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any position sensor for feedback (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.