Battery module equalizing device, battery pack including the same, and automobile

摘要

The battery module equalizing device according to the present invention is configured to be electrically connected to each of the plurality of battery modules, measure voltage values of the plurality of battery modules, and supply current for charging and discharging each of the battery modules. A plurality of slave controllers having a slave charge / discharge path; receiving voltage values of the respective battery modules from the plurality of slave controllers; and selecting at least one slave controller among the plurality of slave controllers based on the received voltage values. And transmitting a charge or discharge command to the selected at least one slave controller, wherein a charge current supplied to the at least one slave controller and a discharge current supplied from the at least one slave controller Including a master controller with the configured master discharge path to flow.