A 1-phase energized disk-type brushless motor or fan motor comprises a single position detecting element located at a position on a printed circuit board corresponding to one of magnetically active conductor portions of one of stator coils of the stator armature. The magnetically active conductor portions...http://www.google.fr/patents/US4891537?utm_source=gb-gplus-shareBrevet US4891537 - 1-Phase energized disk-type brushless motor
