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:
Oct. 21, 2025
Filed:
Aug. 17, 2022
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yuta Nagatomi, Osaka, JP;
Masafumi Nakamura, Mie, JP;
Masatoshi Nakase, Mie, JP;
Hiroki Akashi, Osaka, JP;
Kinya Kato, Shiga, JP;
Abstract
A backup power supply system () includes a first terminal (T), a second terminal (T), a disconnect device (), a current detector (), a charge/discharge device (), an auxiliary power supply (), and a controller (). The disconnect device () is connected between the first terminal (T) configured to be connected to a main power supply () and the second terminal (T) configured to be connected to a load (). The charge/discharge device () is connected between the auxiliary power supply () and a node (P) between the disconnect device () and the second terminal (T). The charge/discharge device () is configured to receive power supplied from main power supply () to cause a charging current to flow to the auxiliary power supply () in a non-defective state in which the main power supply () is not defective. The charge/discharge device () is configured to receive power supplied from the auxiliary power supply () to cause a discharging current to flow to the load () in a defective state. The controller () is configured to have the disconnect device () be in a connecting state while the current detector () does not detect the discharging current, and to have the disconnect device () be in a disconnecting state while the current detector () detects the discharging current.