A sensorless speed control method of a high speed motor utilizing a reverse electromotive force comprises the steps of: adjusting to 50% a positive duty of rectangular waves generated from a reverse electromotive force signal of the high speed motor after accelerating the high speed motor in an accelerated...http://www.google.fr/patents/US6163119?utm_source=gb-gplus-shareBrevet US6163119 - Sensorless speed control method of high speed motor
Sensorless speed control method of high speed motor
