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:
Sep. 28, 2021
Filed:
Nov. 28, 2017
Yazaki Corporation, Tokyo, JP;
Jian Wang, Susono, JP;
Hironao Fujii, Susono, JP;
YAZAKI CORPORATION, Tokyo, JP;
Abstract
Provided is a differential voltage measurement device with enhanced measurement accuracy. A differential amplifying unit outputs a voltage corresponding to a difference voltage between a voltage held by the first capacitor and a voltage held by the second capacitor. The μCOM connects a battery cell to both ends of the first capacitor, and connects the cell battery to both ends of the second after the first capacitor holds the voltage across the cell battery. SW disconnects the electrical connection between the first capacitor and the negative electrode of and the negative electrode of the cell battery. μCOM, after the first capacitor holds the voltage across the cell battery, turns off the SW.