Patent ID: 8907676
Filing Date: 2014-12-09
Classification: G01R,H01M,Y02E

Abstract:
1. A device for detecting a discontinuity in electrical connections of series connected power cells of a power cell system, the power cell system having a plurality of n power cells, the device for detecting comprising: a plurality of n first resistances, each of the plurality of n first resistances being connected as a shunt resistor to an associated power cell so that the n power cells and the n first resistances form a ladder circuit, n electronic filters, an input of each electronic filter having a first connection to a first node of the ladder circuit between two of the first resistances, each electronic filter comprising a second resistance and a capacitor connected to the second resistance, n switches, each of the n switches being connected to an output of an electronic filter, wherein an output of each electronic filter is connected to a voltage monitoring unit, the voltage monitoring unit measuring a dynamic voltage response of an output of the correspondent electronic filter.