If a hybrid stepper motor has a rotor pitch of 36º and a step angle of 9º, the number of its phases must be
A. 4
B. 2
C. 3
D. 6
Answer:A
If a hybrid stepper motor has a rotor pitch of 36º and a step angle of 9º, the number of its phases must be
A. 4 B. 2 C. 3 D. 6
Explanation: Step angle is defined as =(Ns-Nr)/(Ns+Nr)*360.