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:
Aug. 28, 2018
Filed:
Oct. 26, 2016
Lapis Semiconductor Co., Ltd., Yokohama, JP;
Masaru Sekiguchi, Yokohama, JP;
LAPIS Semiconductor Co., Ltd., Yokohama, JP;
Abstract
A semiconductor device is performed a cell voltage measurement control for measuring each cell voltage of each target battery cell among a plurality of battery cells connected in series, using a difference voltage output circuit having first and second input terminals. In the measurement control, first and second connection states are formed with respect to each target battery cell so that each cell voltage is sequentially measured. Anode and cathode of each target battery cell are connected to the first and second input terminals in the first connection state, respectively, and the anode and cathode are connected to the second and first input terminal in a second connection state, respectively. Among the first and second connection states, a connection state that is first formed for a current target battery cell is the same as a connection state that has been last formed for a previous target battery cell.