A monolithically integrated control circuit (4) for a brushless DC motor (1) comprising a commutation signal source (3) controlled by rotational motor position signals, a driver circuit (TS) controlled in accordance with the commutation signals and serving for applying driving pulses, which result in...http://www.google.fr/patents/US4814674?utm_source=gb-gplus-shareBrevet US4814674 - Control circuit for a brushless DC motor
