| 摘要 |
<p>The present invention relates to a device and a method to generate a sine wave and a piezo actuator operating system using the same. According to an embodiment of the present invention, a lookup table storage part storing a lookup table including a plurality of sampling points about a reference frequency and a sampling frequency; a sine wave generating part calculating a constant ratio between a target frequency and the reference frequency, and extracting a plurality of sampling points from the lookup table based on the constant ratio; and a sampling point correcting part correcting the sampling points, extracted by the sine wave generating part, by determining whether the sampling points correspond to the maximum and minimum levels of a preset sine wave or not. The sine wave is able to generate a sine wave according to the sampling points corrected by the sampling point correcting part.</p> |
