Method and apparatus for operating a motor. During a commutation state current is applied to a motor while field effect transistors (FETs) are held in an enable or disable state to effect current in phases of the motor. The phases have a high FET and a low FET. Control circuitry is employed to detect...http://www.google.com/patents/US6906485?utm_source=gb-gplus-sharePatent US6906485 - Spindle motor control using a current profile to taper current transitions
