PIEZOELECTRIC DRIVING APPARATUS AND PIEZOELECTRIC DRIVING METHOD

摘要

A piezoelectric driving apparatus according to an exemplary embodiment includes: a waveform synthesizer outputting a digital value; a digital-to-analog converter outputting an analog value corresponding to the digital value; and an output unit applying an offset voltage to the analog value to generate and output an asymmetrical driving signal.

主权项

1. A piezoelectric driving apparatus comprising:
a waveform generator configured to output an alternating current (AC) signal; an output unit configured to apply an offset voltage to the AC signal to generate and output an asymmetrical driving signal; and a correcting unit configured to correct the offset voltage in at least one section of the asymmetrical driving signal of a piezoelectric element.