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:
Feb. 21, 2023
Panasonic Energy Co., Ltd., Osaka, JP;
Osamu Ohashi, Osaka, JP;
Takuro Hase, Hyogo, JP;
PANASONIC ENERGY CO., LTD., Osaka, JP;
Abstract
A power supply device includes a charge-discharge switching element connected in series to a battery module and configured to charge and discharge the battery module, an analog circuit configured to control turning on and off of the charge-discharge switching element, and a digital circuit configured to control the analog circuit. The analog circuit includes an analog-side communication terminal configured to receive, from the digital circuit by communication, an instruction controlling turning on and off of the charge-discharge switching element, and a switch-OFF terminal configured to turn off the charge-discharge switching element. The switch-OFF terminal is different from the analog-side communication terminal. The power supply device further includes a switch-OFF circuit configured to output an OFF signal to turn off the charge-discharge switching element to the switch-OFF terminal in response to a non-operating state of the digital circuit.