The stator winding of a brushless D.C. motor receives two current pulses per 360.degree.-el. of rotor rotation, each current pulse being furnished via a respective current path. Each current path contains at least one power transistor switch having conductive and non-conductive states. These states are...http://www.google.ca/patents/USRE36860?utm_source=gb-gplus-sharePatent USRE36860 - Brushless direct current motor
