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. 30, 2025
Filed:
Feb. 15, 2021
Tdk Corporation, Tokyo, JP;
Takuma Mitsunaga, Tokyo, JP;
Shingo Suzuki, Tokyo, JP;
Masao Ichi, Tokyo, JP;
Katsuo Naoi, Tokyo, JP;
Hisakazu Uto, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A power management device includes: a first determination unit that determines whether or not an execution condition for executing cell balancing for equalizing states of charge of a plurality of battery cells included in a storage battery connected to a direct current (DC) bus via a converter is satisfied; and a control unit that performs cell balancing execution control for causing a battery management device managing the storage battery to execute the cell balancing when the execution condition is satisfied. The control unit changes a target voltage of the converter so that a state of charge of the storage battery becomes a state in which the battery management device starts the cell balancing in the cell balancing execution control.