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:
Dec. 13, 2016
Filed:
Aug. 12, 2015
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Ikuya Sato, Sagamihara, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-Shi, JP;
Abstract
A three-phase inverter includes three-level inverters connected in parallel to one another, each being capable of outputting a DC high voltage, DC middle voltage, and DC low voltage. A method for controlling the three-phase inverter produces on-time ratios in one switching period of switching elements in the three-level inverters, so as to make the three-phase inverter for one phase alternately output the DC high voltage and the DC middle voltage, to make the three-phase inverter for another phase output the DC middle voltage, and to make the three-phase inverter for the remaining phase alternately output the DC middle voltage and the DC low voltage.