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:
Feb. 24, 2026
Filed:
Sep. 06, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsuru Ishizuka, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A controlling circuitry of a power converter has a 3-level operation mode of outputting AC voltage composed of 3-level voltages of a DC circuit by performing ON/OFF control of semiconductor elements, and a 2-level operation mode of outputting AC voltage composed of 2-level voltages of the DC circuit by performing ON/OFF control of the semiconductor elements. The controlling circuitry executes first switchover control for switching between the 2-level operation mode and the 3-level operation mode, at a timing when, among the semiconductor elements, a set semiconductor element according to a polarity of a voltage command for controlling the power converter is continuing to be ON.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile