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:
May. 16, 2023
Filed:
Jul. 29, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Takashi Kaneyama, Tokyo, JP;
Mitsubishi Electric Cornoration, Tokyo, JP;
Abstract
The objective is to provide a function of detecting loss of a current detection function, at a time when a switching device has an open failure, in an arm that has the current detection function and a temperature detection function and in which two or more switching devices are connected in parallel with one another. A switching apparatus includes a current detector and a temperature detector provided in at least one of the two or more switching devices that are connected in parallel with one another and a controller that determines an overcurrent in the switching device in which the current detector is provided, that determines an overheating state and a temperature-rising failure in the switching device in which the temperature detector is provided, based on an output of the temperature detector, and that controls the switching devices.