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.

Date of Patent:
Feb. 04, 2025

Filed:

Aug. 20, 2021
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventor:

Hideaki Majima, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2020.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2608 (2013.01); H03K 5/24 (2013.01);
Abstract

According to one embodiment, a degradation detection device includes a driving circuit that supplies a driving signal that controls on/off of an output transistor to the output transistor and an output circuit that compares a value of integral of an output current that is output by the output transistor in an off-state thereof over a predetermined period of time with a predetermined threshold when the output transistor is turned from an on-state thereof to an off-state thereof and outputs a signal that indicates a degradation state of the output transistor depending on a result of such comparison.


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