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:
Sep. 15, 2026
Filed:
Apr. 18, 2023
Tmeic Corporation, Tokyo, JP;
TMEIC CORPORATION, Tokyo, JP;
Abstract
A system for preventing semiconductor elements of a power converter from breaking down due to an overvoltage by a lightning surge in a multilevel power conversion system is provided. The multilevel power conversion system includes a multilevel power converter, and a controller that includes an operation control unit that causes an operation mode of the multilevel power converter to transition to a standby mode in which power conversion is not performed between a DC input/output unit and an AC input/output unit based on a predetermined condition, and a gate signal generation unit that generates and outputs a gate signal that puts at least one of a third semiconductor switching element or a second semiconductor switching element into a conducting state or a switching state in the standby mode.