| 摘要 |
<p>An oscillation detecting apparatus for detecting oscillation of a signal is provided with a high-pass filter for generating an alternating signal having a signal direct current component removed, a slice circuit for generating a limited signal having an amplitude level of the alternating signal at a previously given level or below, an integrating circuit for integrating a waveform of the limited signal in a previously fixed period, and a comparator for detecting whether the signal is oscillating or not, based on a value the integrating circuit integrated. The oscillation detecting apparatus may further be provided with an absolute value circuit for converting a negative signal component of the alternating signal into a positive signal component, and may further be provided with an absolute value circuit for converting a negative signal component of the limited signal into a positive signal component.</p> |
