Go teoiriciúil, ba chóir go mbeadh an mótar gan scuab ina voltas dronuilleogach agus ina thonnfhoirm reatha, ba chóir go mbeadh an tonnfhoirm EMF ar ais mar thonn dronuilleogach, mótar gan scuab le gnáth -thréithe meicniúla mótair, le chasmhóimint mhór, luas tapaidh, dinimiciúil, tá an braiteoir simplí, ard -éifeachtúlachta, mar go bhfuil an t -eolas atá le fada an lá le h -in ann a bheith in ann a bheith in ann a bheith in ann an t -eolas a bheith ann. Brushless motor counter electromotive force is sine wave and sine wave, sine wave brushless motor all-the-way tracking the position of the rotor, so as to obtain the synchronization with the rotor magnetic field sine position signal, position sensor is more complicated, such as using rotating transformer, such as grating encoder, now due to the emergence of advanced control technology, with hall element, without hall element or without complex sensor can achieve the purpose of Rialú Tonn Sín, ach Rialú Teicneolaíocht do Mhótair gan Scuab Tonn Coimpléasc
