ADAPTIVE BATTERY CELL MONITORING DEVICE EQUIPPED WITH AN ELECTRICAL OVERSTRESS (EOS) PROTECTION CIRCUIT

An adaptive battery cell monitoring device includes a cell monitoring circuit configured to monitor n battery cells (where n is a natural number) included in a battery module. The device further includes an electrical overstress (EOS) protection circuit configured to protect the cell monitoring circuit from external EOS. The EOS protection circuit is connected between an uppermost terminal of the cell monitoring circuit and a ground terminal of the cell monitoring circuit. The uppermost terminal of the cell monitoring circuit is connected to a positive electrode of an uppermost battery cell of the battery module including k battery cells (where k is a natural number equal to or less than n). The ground terminal of the cell monitoring circuit is connected to a negative electrode of a bottommost battery cell of the battery module. The device further includes a first bypass circuit configured to bypass the external EOS.