BATTERY CELL VOLTAGE EQUALISATION CIRCUIT

摘要

A battery cell voltage equalization circuit 1 equalizes the voltages of battery cells B1 and B2 that are connected in series. A switch S1 is electrically connected to the positive electrode of the battery cell B1 via a first path, is electrically connected to the negative electrode of the battery cell B1 via a second path, and electrically connects or disconnects the first and second paths. A switch S2 is electrically connected to the positive electrode of the battery cell B2 via the second path, is electrically connected to the negative electrode of the battery cell B2 via a third path, and electrically connects or disconnects the second and third paths. An inductor L is provided in the second path. Fuses h1 through h3 are provided in the first through third paths, respectively. The switches S1 and S2 are controlled to an ON state alternately.