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:
Apr. 09, 2024
Filed:
Feb. 25, 2022
Fuji Electric Co., Ltd., Kawasaki, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A short-circuit detector includes: a first Rogowski coil configured to generate a first detection signal in accordance with a current that flows through a first arm due to a short circuit in a load; a second Rogowski coil configured to generate a second detection signal in accordance with a current that flows through the first arm due to a short circuit in the first arm or a second arm; a load short-circuit detection circuit configured to detect the short circuit in the load, based on the first detection signal; an arm short-circuit detection circuit configured to detect the short circuit in the first arm or the second arm, based on the second detection signal; and a short-circuit detection circuit configured to detect a short-circuit, based on: an output signal output from the load short-circuit detection circuit; and an output signal output from the arm short-circuit detection circuit.