I asked you, you said the stepper motor is a pulse to a point of view, in accordance with the basic steps of your motor angle is 7.5 words, you AB-BC-CD-DA-AB is the phase excitation, has been turned by the 5 step.I asked: pulse definition is not change from the initial state after the return to the initial state of the process, then understand this word is AB-BC-CD-DA-AB for a pulse on the question if that ah should be 360/7.5=144 144/4= 36 is 36 pulses.You answer the pulse, you can understand that the is very small, so the AB-BC-CD-DA-AB has 5 high and low jump processes, so there are 5 pulses instead of one,My question here is that the definition of pulse is the process of returning to the initial state from the initial state change. Here, AB is the initial state, and then back to AB. Isn't that what is called a pulse?
Stepper motor driver has a ring counter is to do this work, each receives a pulse will be positive (or reverse direction, to look at the control level) jump a state, such as AB into BC (positive), or BC into AB (reverse), and then the output power through the ring counter drive motor amplifier.The 2 phase stepper motor is implemented within two beats of the coil to reverse energization.
AB-BC-CD-DA-AB is the four phase four operation mode, is the way of motor running six head step, actually this is only 4 beats you oh, a tally, 1.AB-BC 2.BC-CD 3.CD-DA 4.DA-AB, right?
Look at the pulse timing diagram of the diagram below and you'll see exactly how many pulses are there
