High Power Voice Coil Motor(VCM) is used in linear motion applications that require linear force, high acceleration and high frequency actuation. However, when the VCM is used in High accuracy positioning system, the performance of VCM falls in mechan...
High Power Voice Coil Motor(VCM) is used in linear motion applications that require linear force, high acceleration and high frequency actuation. However, when the VCM is used in High accuracy positioning system, the performance of VCM falls in mechanical and electromagnetic losses. The Mechanical loss is caused by the system inertia and damping and the electromagnetic loss comes from ununiformity of the magnetic flux density which changes according to the moving coil's displacement. In this paper, we proposed a new method to enhance the performance of position tracking by considering both of mechanical and electromagnetic losses.