ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,831, issued on Aug. 19, was assigned to PANASONIC ENERGY Co. LTD. (Osaka, Japan).
"Power supply device" was invented by Jeewook Chang (Kanagawa, Japan) and Takahiro Kamikawa (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A failure of battery modules is reliably determined. A power supply device includes: battery modules (2) each of which included a failure determination unit (21) configured to determine a failure and a normality and to output the failure and the normality as a High signal and a low signal; a failure transmission line (3) connected to the failure determination unit (21) of each battery module (2); and a module failure d...