In battery voltage monitoring ICs for measuring voltages of unit cells of an assembled battery, communication with a system control unit is realized in consideration of fail-safe. The system control unit and the battery voltage monitoring ICs are coupled to each other by a communication path using a daisy chain. Each battery voltage monitoring IC has a placement setting pin designating, by a binary code, a unit cell group to which the IC is coupled, in the unit cell groups. When it is detected that the Hamming distance between the code indicative of coupling to a group of the highest potential or a group of the lowest potential and a state actually set in the placement setting pin is 1, some failure such as line disconnection, short-circuit, or the like in the placement setting pins is detected, and the communication path is interrupted.


    Access

    Download


    Export, share and cite



    Title :

    Semiconductor device and battery voltage monitoring device


    Contributors:

    Publication date :

    2017-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H04Q Wähltechnik , SELECTING



    SEMICONDUCTOR DEVICE AND BATTERY VOLTAGE MONITORING DEVICE

    FUKUTE AKIKO / ENOMOTO RYOSUKE / KIMURA JUNKO et al. | European Patent Office | 2018

    Free access

    Battery voltage monitoring device

    KANEKO KAZUMI / IGUCHI HIROFUMI / TAKANEZAWA YUKI | European Patent Office | 2018

    Free access

    BATTERY VOLTAGE MONITORING DEVICE

    KANEKO KAZUMI / IGUCHI HIROFUMI / TAKANEZAWA YUKI | European Patent Office | 2019

    Free access

    Battery monitoring system and semiconductor device

    SEKIGUCHI MASARU | European Patent Office | 2016

    Free access

    BATTERY VOLTAGE EQUALIZATION DEVICE

    HAMADA KENJI | European Patent Office | 2024

    Free access