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:
Jan. 11, 2022
Filed:
Oct. 26, 2020
Fuji Electric Co., Ltd., Kanagawa, JP;
Ryuji Yamada, Hachioji, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
A power conversion device includes a transformer, and a first bridge circuit connected to a primary-side of the transformer and capable of switching a polarity of a connection between a pair of DC bus bars on the primary-side and the transformer. A second bridge circuit is connected to a secondary-side of the transformer and capable of switching a polarity of a connection between a pair of DC bus bars on the secondary-side and the transformer. A control device is provided which is capable of performing control of switching the first bridge circuit and the second bridge circuit with a phase difference. The control device has a frequency adjustment unit for adjusting a frequency of switching of the first bridge circuit and the second bridge circuit, according to an output from the first bridge circuit or the second bridge circuit and a target value.