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:
Oct. 20, 2026
Filed:
Feb. 13, 2023
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
An electric circuit system including a plurality of electric paths in which a plurality of potential difference generating units are connected in series, and which have one pole serving as a common electrode, an earth fault detection circuit which is provided between an intermediate potential portion of each electric path and earth, and which is used to detect an earth fault of each electric path, and a control device for detecting an earth fault of each electric path by comparing each measured value measured by the earth fault detection circuit with a threshold for determining an earth fault, wherein the control device comprises a potential difference acquiring unit for acquiring a potential difference of the intermediate potential portions of the plurality of electric paths, and a threshold setting unit for setting the threshold on the basis of the potential differences acquired by the potential difference acquiring unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile