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. 28, 2023
Filed:
May. 20, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Shingo Tsuda, Tokyo, JP;
Taichiro Tamida, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A power supply device includes: 'm×n' switching elements; capacitors connected in series to corresponding ones of the switching elements and forming 'm×n' series circuits; a charger charging the capacitors; “m” transformers in which primary windings are connected to both ends of corresponding ones of “m” parallel circuits formed by connecting “n” units of the series circuits in parallel to one another with the polarity aligned; a current detection unit detecting, as a detected current value, current flowing through a multistage series circuit in which secondary windings of the transformers are sequentially connected in series so that both ends of the circuit serve as output terminals; a control unit outputting a command signal generated based on the detected current value and a current command being a target value of the current output from the output terminals; and a drive unit driving the switching elements and the charger based on the command signal.