| 摘要 |
PROBLEM TO BE SOLVED: To provide a control method of a vibration generator capable of shortening a start-up time for reaching a normal vibration amount in a resonant frequency of a movable part, and the vibration generator.SOLUTION: A vibration generator 10 comprises: a fixed part 21 around which a coil 24 is wound; a movable part 30 including a back yoke and a weight in a magnet 31; a crosslinking part 27 which supports the movable part 30 in a movable manner; and a power source part 40 which applies an alternating current in a predetermined frequency to the coil 24. At a start-up time, the power source part 40 applies an alternating current in a start-up frequency that is different from a resonant frequency of the movable part 30, for start-up. At a time point when a vibration amount reaches a fixed ratio with respect to a saturation vibration amount in the start-up frequency, the power source part 40 changes the frequency of the alternating current to be applied into the resonant frequency of the movable part 30. Thus, the start-up time for reaching the normal vibration amount in the resonant frequency of the movable part 30 can be shortened. |
