A mobile terminal capable of controlling an auto focus, the mobile terminal, comprising: a fixed unit having a hole formed therein; a magnet placed inside the fixed unit ; a lens unit including at least one lens and configured to move relative to the fixed unit ; a moving coil enclosing an outer surface of the lens unit , a fixed coil ; an image signal processing unit processing an image signal sensed by an image sensing unit; and a controller configured to: provide a first current or voltage signal to the moving coil wherein the first current or voltage signal includes a first frequency signal and a second frequency signal, wherein a second current or voltage signal is induced to the fixed coil by electromagnetic induction between the moving coil and the fixed coil through the second frequency signal, the second current or voltage signal being varied according to a distance between the moving coil and the fixed coil , and determine a position of the lens unit for the auto focus based on the second current or voltage signal and the image signal processed by the image signal processing unit , wherein the second frequency signal has a higher frequency than the first frequency signal, and wherein a time slot for processing the image signal does not overlap a time slot for providing the second frequency signal. a fixed unit having a hole formed therein; a magnet placed inside the fixed unit ; a lens unit including at least one lens and configured to move relative to the fixed unit ; a moving coil enclosing an outer surface of the lens unit , a fixed coil ; an image signal processing unit processing an image signal sensed by an image sensing unit; and a controller configured to: provide a first current or voltage signal to the moving coil wherein the first current or voltage signal includes a first frequency signal and a second frequency signal, wherein a second current or voltage signal is induced to the fixed coil by electromagnetic induction between the moving coil and the fixed coil through the second frequency signal, the second current or voltage signal being varied according to a distance between the moving coil and the fixed coil , and determine a position of the lens unit for the auto focus based on the second current or voltage signal and the image signal processed by the image signal processing unit , wherein the second frequency signal has a higher frequency than the first frequency signal, and wherein a time slot for processing the image signal does not overlap a time slot for providing the second frequency signal. provide a first current or voltage signal to the moving coil wherein the first current or voltage signal includes a first frequency signal and a second frequency signal, wherein a second current or voltage signal is induced to the fixed coil by electromagnetic induction between the moving coil and the fixed coil through the second frequency signal, the second current or voltage signal being varied according to a distance between the moving coil and the fixed coil , and determine a position of the lens unit for the auto focus based on the second current or voltage signal and the image signal processed by the image signal processing unit , wherein the second frequency signal has a higher frequency than the first frequency signal, and wherein a time slot for processing the image signal does not overlap a time slot for providing the second frequency signal. <EOS>