An electronically commutated motor has a permanent magnet rotor having: {TAIL ~ at least two rotor poles} ; {HEAD ~ at least one phase} ; a power stage ; and a rotor position sensor  
An electronically commutated motor has a permanent magnet rotor having : { TAIL ~ at least two rotor poles } ; { HEAD ~ at least one phase } ; a power stage ; and a rotor position sensor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH