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