Title:
CAPACITOR LIFESPAN ESTIMATION METHOD, LIFESPAN ESTIMATION PROGRAM THEREOF, INFORMATION PROCESSING DEVICE, AND CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2020/067393
Kind Code:
A1
Abstract:
The present invention include processings (a processing unit 8) for calculating an estimated heat generation temperature by using driving conditions (22, a storage unit 6) including at least driving timing information (18) and driving current value information (20), and temperature change characteristic information (24) about a capacitor, calculating state change information (28) about the capacitor after the passage of a reference time, and calculating a lifespan estimation value of the capacitor (a lifespan estimation result 30) by using the state change information. Accordingly, it is possible to estimate the lifespan of the capacitor corresponding to a change in a value of a driving current flowing through the capacitor, the applicability of the capacitor can be confirmed, or the safety of an apparatus using the capacitor becomes high.
Inventors:
SENZAI DAIZOU (JP)
FURUKAWA TOSHIHIKO (US)
FURUKAWA TOSHIHIKO (US)
Application Number:
PCT/JP2019/038070
Publication Date:
April 02, 2020
Filing Date:
September 27, 2019
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
G01R31/00; H01G13/00
Foreign References:
| JPH1169834A | 1999-03-09 | |||
| JP2016031305A | 2016-03-07 | |||
| JP2000131362A | 2000-05-12 | |||
| JP2010060305A | 2010-03-18 | |||
| US20140103937A1 | 2014-04-17 | |||
| JP2013044714A | 2013-03-04 | |||
| JP2006078215A | 2006-03-23 |
Other References:
MICHAEL L GASPERI : "Life Prediction Model for Aluminum Electrolytic Capacitors", CONFERENCE RECORD OF THE 1996 IEEE INDUSTRY APPLICATIONS CONFERENCE - 31ST IAS ANNUAL MEETING, vol. 3, 6 October 1996 (1996-10-06), pages l347 - 1351, XP010201197, DOI: 10.1109/IAS.1996.559241
See also references of EP 3859357A4
See also references of EP 3859357A4
Attorney, Agent or Firm:
UNEMOTO Shoichi et al. (JP)
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