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:
Mar. 28, 2023
Filed:
Mar. 18, 2020
Kyosan Electric Mfg. Co., Ltd., Yokohama, JP;
Kunihiro Muto, Yokohama, JP;
KYOSAN ELECTRIC MFG. CO., LTD., Yokohama, JP;
Abstract
In this power conversion device, a phase deviation of an output voltage due to a phase shift control is eliminated. The power conversion device according to the present invention converts DC voltage to AC voltage by phase-shift controlling the switching elements of a full bridge inverter. In place of a conventional method in which only one of the first and second legs of the full bridge inverter is phase-shifted, both legs are phase-shifted in opposite directions to each other to control an overlap angle at which the switching elements of the first and second legs of the full bridge are simultaneously brought into an on-state. The variation of the center phase of the overlap angle is suppressed by phase-shifting the first and second legs in the opposite directions to each other.