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:
Jan. 23, 2024
Filed:
Dec. 09, 2019
Sanyo Electric Co., Ltd., Osaka, JP;
Masato Nakayama, Hyogo, JP;
Tomonori Kunimitsu, Hyogo, JP;
Taisuke Hamada, Hyogo, JP;
Yasuharu Tanaka, Hyogo, JP;
SANYO Electric Co., Ltd., Osaka, JP;
Abstract
In electrical fault detection device that is mounted on a vehicle and includes: energy storage unit to be mounted in a state of being insulated from a chassis ground of the vehicle; first switch inserted into positive wire; and second switch inserted into negative wire, in order to suppress a total cost by not using an expensive component while securing detection accuracy, electrical fault detection device further includes coupling capacitor, AC output unit, first voltage measurement unit, first determination unit, voltage dividing circuit, second voltage measurement unit, and second determination unit. Voltage dividing circuit is connected between positive wire between first switch and one end of load and negative wire between second switch and the other end of load.