CONTROL DEVICE THAT CONTROLS VIBRATION DEVICE, AND METHOD OF CONTROLLING VIBRATION DEVICE
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United States of America
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Issued Date -
Dec 19, 2024
app pub date -
Aug 29, 2024
filing date -
Aug 29, 2024
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status (Latency Note)
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Abstract
The present disclosure relates to a method of controlling a vibration device including a piezoelectric element via a control device. The method includes changing a frequency of a drive signal for driving the piezoelectric element, measuring a value related to an impedance of the piezoelectric element, and determining a driving frequency for driving the piezoelectric element based on a change in the measured value related to the impedance of the piezoelectric element. The changing of the frequency of the drive signal includes changing a clock width such that a clock width of a first portion of clocks among a plurality of clocks included in the drive signal and a clock width of a second portion of clocks among a plurality of clocks are different from each other.
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