This paper reviews the recent developments in the field of sensorless control of Brushless Direct Current motors. Moreover a survey of application of H∞ control theory for robust control, considering the uncertainties like modeling errors and external disturbances in various motors and systems has been carried out. This provides a deeper insight into the recent developments and future scope in ...

Minnesota Micromotors, Inc. (MM), based in Minneapolis, was a manufacturer of brushless, direct current (BLDC)1 motors used in orthopedic medical devices. Devices utilizing MM’s motors were typically used by orthopedic surgeons in large bone surgery, reconstructive surgery, trauma surgery, and sports medicine procedures. MM sold approximately 97,000 motors a year and had a 9% share of the $137 ...