Bunaíonn an rialaitheoir mótar gan scuab ag an am cuí le haghaidh leictreachas corna mótair, chun réimse maighnéadach rothlach a tháirgeadh, rothlaíonn an rótar mótair leis an réimse maighnéadach rothlach. When the hall element in the N pole and s pole is different when the potential, the center hall element from a N pole through a magnetic boundary of magnetic steel enters another s pole, just at the moment through a magnetic boundary, hall element instead of potential output, with the potential to control circuit of the controller, the brushless motor flux of coil current direction change, so as to achieve the purpose of motor electronic commutation, when reversing the center line of the hall element and Ba chóir go mbeadh an corna ag cúlú suíomh lárlíne an imeall ina chomhtharlú.
