Absolute Position Detection in 7-Phase Sensorless Electric Stepper Motor
Vincent Groenhuis,Gijs Rolff,Koen Bosman,Leon Abelmann,Stefano Stramigioli,Vincent Groenhuis,Gijs Rolff,Koen Bosman,Leon Abelmann,Stefano Stramigioli
Absolute position detection in sensorless electric stepper motors potentially allows for higher space efficiency, improved shock resistance, simplified installation, reduced number of parts and lowered cost. A prototype is demonstrated measuring 42 × 42 × 34 mm3 with seven coils arranged in a star configuration. The rotor is ϕ 25.8 × 12.5 mm2 and has 51 teeth which are irregularly spaced. At the d...
