본 발명의 바람직한 실시예에 따른 누설전류 검출 기능을 구비한 BMS 반도체 장치는, 배터리 셀의 양전압단에 연결되는 밸런싱단과 상기 배터리 셀의 음전압단에 연결되는 하위 센싱단의 전압을 비교하여 출력하는 비교기, 상기 배터리 셀의 양전압단에 연결되는 상위 센싱단과 상기 하위 센싱단의 전압차를 센싱하는 ADC, 및 상기 ADC에서 센싱한 전압차에 따라 가변 임계값을 설정하고, 상기 비교기의 비교결과와 상기 가변 임계값을 이용하여 누설전류 발생 여부를 판단하는 누설전류 판단부를 포함한다.

    A Battery Management System (BMS) semiconductor device having a leakage current detection function, may include: a comparator configured to compare a voltage of a balancing terminal connected to a positive voltage terminal of a battery cell and a voltage of a lower sensing terminal connected to a negative voltage terminal of the battery cell and output a result of the comparing; an ADC connected to the upper sensing terminal and the lower sensing terminal and configured to sense a voltage difference between the upper sensing terminal connected to the positive voltage terminal of the battery cell and the lower sensing terminal; and a leakage current determining unit connected to the ADC and the comparator and configured to set a variable threshold value according to the difference value sensed by the ADC and determine whether a leakage current is generated by using the result of the comparing in the comparator and the variable threshold value.


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    Title :

    BMS BMS SEMICONDUCTOR APPARATUS WITH LEAKAGE CURRENT DETECTION FUNCTION AND LEAKAGE CURRENT DETECTION METHOD THEREOF


    Additional title:

    누설전류 검출 기능을 구비한 BMS 반도체 장치 및 그것의 누설전류 검출 방법


    Publication date :

    2021-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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