公开(公告)号：US20160356837A1

公开(公告)日：2016-12-08

申请号：US15162966

申请日：2016-05-24

Applicant: FUJITSU LIMITED

Inventor： Hiroshi NAKAO ,  Yu YONWZAWA ,  Takahiko SUGAWARA ,  Yoshiyasu NAKASHIMA

IPC: G01R31/02 ,  H02M7/217

CPC classification number: G01R31/028 ,  G01R31/016 ,  H02M1/32 ,  H02M1/4225 ,  H02M3/33523 ,  H02M2001/007 ,  Y02B70/126

Abstract: A capacitor life diagnosis device includes: a first fluctuation detecting unit configured to detect a maximum value of fluctuation in output voltage of a first capacitor every fixed time; and an output unit configured to predict a residual life of the first capacitor on the basis of temporal transition of the maximum value of fluctuation in the output voltage detected by the first fluctuation detecting unit, and output a signal indicating the residual life of the first capacitor.

Abstract translation: 电容器寿命诊断装置包括：第一波动检测单元，被配置为每隔一定时间检测第一电容器的输出电压的波动的最大值; 以及输出单元，被配置为基于由第一波动检测单元检测的输出电压中的最大波动的最大值的时间转变来预测第一电容器的剩余寿命，并输出指示第一电容器的剩余寿命的信号 。