| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving circuit and an oscillating gyroscope capable of improving an apparent characteristic of an oscillator to prevent a resonant point from getting close to an antiresonant point and to make the antiresonant point run out of a band in a frequency. <P>SOLUTION: A subtracter 2 for a driving signal and a monitor signal obtained from the oscillator 1 is arranged in a prestage of a PLL, and an output from the subtracter 2 is made to serve as one input for a phase comparator 3 using the driving signal as other input. The subtracter 2 subtracts the monitor signal and the driving signal, using a resonant gain and an antiresonant gain of the monitor signal, in the resonant point and the antiresonant point of the oscillator 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
