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:
Sep. 29, 2026
Filed:
Jul. 04, 2022
Lg Innotek Co., Ltd., Seoul, KR;
Kwang Soon Jung, Seoul, KR;
Jeong Heum Park, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that are respectively connected to a plurality of cell strings; and an auxiliary power supply unit for supplying driving power to each of the plurality of converters, wherein the auxiliary power supply unit comprises: a first voltage conversion part for converting a first voltage of at least one output terminal from among output terminals of the plurality of cell strings into a second voltage, and outputting same; and a second voltage conversion part for supplying driving power to each of the plurality of converters by converting the second voltage, which has been output from the first voltage conversion part, into a third voltage, wherein the plurality of converters have a multi-level structure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile