VIBRATION DEVICE FOR MOBILE COMMUNICATION TERMINAL AND CONTROL METHOD THEREFOR

摘要

PURPOSE: A vibration device for a mobile communication terminal is provided to expand a resonance point section of a driving signal as using an existing vibration element, thereby obtaining a maximum vibration with simple configuration and maintaining a frequency of the driving signal to show the maximum vibration. CONSTITUTION: A vibrator(110) generates a vibration. A frequency generator(130) generates a driving signal having a predetermined frequency. A driver(120) drives the vibrator(110) by supplying the driving signal to the vibrator(110). A frequency controller(140) controls a frequency value of the driving signal. The vibrator(110) includes a vibrating coil driven by the driver(120), and includes a magnet moved in response to an electric field generated in the vibrating coil. The driver(120) supplies a current to the vibrating coil in response to the driving signal supplied from the frequency generator(130). The current is an alternate current whose direction is changed according to a predetermined frequency. The frequency of the current is determined by the frequency controller(140).