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:
Dec. 13, 2016
Filed:
Apr. 27, 2012
Akihiko Kudo, Hitachinaka, JP;
Mutsumi Kikuchi, Hitachinaka, JP;
Tomonori Kanai, Hitachinaka, JP;
Tatsumi Yamauchi, Hitachinaka, JP;
Akihiro Machida, Hitachinaka, JP;
Akihiko Kudo, Hitachinaka, JP;
Mutsumi Kikuchi, Hitachinaka, JP;
Tomonori Kanai, Hitachinaka, JP;
Tatsumi Yamauchi, Hitachinaka, JP;
Akihiro Machida, Hitachinaka, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Abstract
A battery monitoring device for monitoring a cell group made by connecting a plurality of single battery cells in series including a first switching circuit configured to select, as a measurement target voltage, a type of voltage a differential amplifier circuit including a first input terminal and a second input terminal, configured to convert the measurement target voltage, which is selected by the first switching circuit and input between the first input terminal and the second input terminal, into a voltage in a predetermined range by performing differential amplification, and an AD converter configured to measure the measurement target voltage selected by the first switching circuit and converted by the differential amplifier circuit, and output a digital signal according to the measurement result, wherein an abnormality detection voltage, is output to the AD converter.