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. 02, 2018
Filed:
Jun. 11, 2014
Lapis Semiconductor Co., Ltd., Kanagawa, JP;
Yazaki Corporation, Tokyo, JP;
Naoaki Sugimura, Kanagawa, JP;
Takaaki Izawa, Shizuoka, JP;
LAPIS SEMICONDUCTOR CO., LTD., Kanagawa, JP;
YAZAKI CORPORATION, Tokyo, JP;
Abstract
The present invention appropriately detects line-breakages in a signal line related to a battery connected to a discharge circuit for discharging. Namely, an initialization operation produces a state in which a capacitor (C) is charged with the difference between the voltage of a signal line (Vn) and a self-threshold voltage (Vx), and a capacitor (C) is charged with the difference between the voltage of a signal line (Vn−1) and a self-threshold voltage (Vx), in a comparison circuit (). In a comparison operation, a voltage adjusting section (ILn+1) produces a state in which line-breakage detection current is drawn out from a signal line (Ln), a signal line (Lc) is connected to the capacitors (C, C) and a voltage (DVn) is input to the capacitors (C, C). When an output OUT=L level, it is detected that there is no line-breakage, and when the output OUT=H level, it is detected that there is a line-breakage.