Single-Phase Series Motor (Universal)
Fig.(1)four phase 4/2 VR stepper motor It is a four-phase, 4/2-pole (4 poles in the stator and 2 in the rotor), single-stack, variable reluctance stepper motor. Four phases are A, B, C and D are connected to dc source with the help of semiconductor switches SA, SB, SC and SD respectively. The phase winding of the stator are energised in the ...
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