- 专利标题: Battery monitoring circuit
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申请号: US15797048申请日: 2017-10-30
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公开(公告)号: US10725109B2公开(公告)日: 2020-07-28
- 发明人: Hitoshi Hagimori , Yasuhiro Kinoshita
- 申请人: Hitoshi Hagimori , Yasuhiro Kinoshita
- 申请人地址: JP Tokyo
- 专利权人: MITSUMI ELECTRIC CO., LTD.
- 当前专利权人: MITSUMI ELECTRIC CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: IPUSA, PLLC
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@145a9973
- 主分类号: G01R31/36
- IPC分类号: G01R31/36 ; G01R31/382 ; G01R31/367 ; G01R31/374
摘要:
A battery monitoring circuit for a portable device driven by a secondary battery that supplies an electric current via a wiring pattern formed on a substrate. The battery monitoring circuit includes: a current measuring circuit that measures a current value of a current that flows in the wiring pattern by monitoring an amount of voltage drop that occurs in a specific section of the wiring pattern; a converter that converts the current value into a digital measured current value; a first storage part that stores data for compensating a variation in a resistance value of the wiring pattern depending on an individual particularity of the substrate; and a calculating part configured to correct the digital measured current value by using the data to calculate a corrected current value and to calculate a remaining capacity or to monitor a state of the secondary battery based on the corrected current value.
公开/授权文献
- US20180149705A1 BATTERY MONITORING CIRCUIT 公开/授权日:2018-05-31