Patent ID: 9091736
Filing Date: 2015-07-28
Classification: G01R,H02J

Abstract:
1. A system comprising: a plurality of voltage to current (V-to-I) converters each being couplable to one of a respective plurality of cells; a cell detector circuit coupled to each of the plurality of V-to-I converters to receive a current generated by its respective V-to-I converter, wherein the cell detector circuit compares each of the respective plurality of cells with other cells in the plurality of cells by determining a maximum current input to the converters and which cell provides that maximum current to determine if any of the plurality of V-to-I converters provides an anomalous input current and determines which of the plurality of V-to-I converters provides the anomalous input current whereby relative performance between the cells is determined, wherein the cell detector circuit further comprises a plurality of multi-input current detectors, wherein each of the plurality of multi-input current detectors is coupled to each of the plurality of V-to-I converters, and wherein each multi-input current detector compares at least one of the V-to-I converter outputs to a threshold value to determine an anomalous current; and wherein each multi-input detector outputs a logic signal for each of the inputs, each output of the multi-input current detector is coupled to the input of an OR gate.