| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a repair information notification device that notifies repair information of a power supply part in CATV equipment by monitoring an actual operating state of an electrolytic capacitor. <P>SOLUTION: The repair information notification device 1 includes a pulsating-voltage-signal generating part 11, which generates a pulsating voltage signal by removing a DC component from a voltage charged/discharged by an electrolytic capacitor for smoothing pulsation of a DC current included in a conversion circuit that converts an AC current into a DC current, a high-frequency-component removing part 12, which removes a high frequency higher than four times an AC frequency from the pulsating voltage signal, a voltage-signal generating part 13 for generating a voltage signal proportional to a voltage of the pulsating voltage signal with no high frequency, a threshold-signal generating part 14 for generating at least one predetermined threshold signal, and a repair information notification part 15 that notifies repair information when the voltage signal becomes larger than the threshold signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
