| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vibration actuator driving device that suppresses an increase in power consumption due to the dispersion in the manufacturing of a vibrating actuator. <P>SOLUTION: An actuator-driving device 10 includes an oscillation portion 11 for generating an oscillation signal having a prescribed frequency; an amplification portion 13 for amplifying the oscillation signal generated by the oscillation portion so as to apply the amplified signal to a vibration actuator as a drive signal; a voltage-detecting portion 14 for detecting the voltage of the drive signal applied to the vibrating actuator; and a control portion 17 for calculating an amplification factor, by which the voltage detected by the voltage detecting portion becomes a predetermined voltage, so as to change the amplification factor of the amplifying portion, to the calculated amplification factor. <P>COPYRIGHT: (C)2011,JPO&INPIT |
