The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2023
Filed:
Sep. 27, 2019
Nippon Chemi-con Corporation, Tokyo, JP;
Daizou Senzai, Tokyo, JP;
Toshihiko Furukawa, Buena Park, CA (US);
NIPPON CHEMI-CON CORPORATION, Tokyo, JP;
Abstract
A method includes processes of (a processing part) calculating an estimated heat generation temperature by using drive conditions (, a storage part) at least including drive timing information () and drive current value information (), and temperature change characteristic information () of a capacitor, calculating state change information () of the capacitor after elapse of a reference time by using the estimated heat generation temperature, and calculating a lifespan estimation value (lifespan estimation result) of the capacitor by using the state change information. This enables capacitor lifespan estimation corresponding to fluctuations of a drive current value flowing through the capacitor, the applicability of the capacitor is confirmed, and the safety of equipment using the capacitor is improved.