BALLANCING CONTROL CIRCUIT FOR BATTERY CELL MODULE USING SERIES RESONANT CIRCUIT

摘要

The present invention relates to a technology facilitating control of a balancing speed when a balancing operation is performed for a battery cell module including a plurality of battery cells connected in series. A circuit for controlling balancing of a battery cell module using an LC series resonant circuit comprises: a battery cell module including a plurality of battery cells connected in series; a series resonant circuit including an inductor and a capacitor connected in series to store electric energy recovered from a corresponding battery cell of the battery cell module and supplying the stored electric energy to the corresponding battery cell of the battery cell module, wherein at least one of the inductor and the capacitor is a variable type to adjust a balancing speed; and a switch unit providing an electric energy recovery path to charge the capacitor of the series resonant circuit with the electric energy recovered from the corresponding battery cell of the battery module and providing an electric energy supply path to supply the stored electric energy to the corresponding battery cell of the battery cell module.