CIRCUIT ASSEMBLY FOR EQUALIZING CHARGE IN A BATTERY BLOCK ASSEMBLY

摘要

The invention relates to a circuit assembly for exchanging electric charge among the inner cells (9) of a battery block assembly, wherein a battery block is connected to a plurality of battery blocks (1a, 1b, 1c, 1d, 1e) in a battery block assembly (10) by means of the outer connecting terminals (5, 6) of the battery block. An energy transfer device (12) is provided, by means of which electrical energy can be supplied to any cell (9) of the first battery block (1b), for which purpose a cell (9) of the first battery block (1b) is connected to the energy transfer device (12) by means of a switching element (11). Furthermore, an input circuit (30) is provided, which is connected to the energy transfer device (12) by means of a switching element (31). In order to ensure an even distribution of the charge stored in the individual cells (9) of a battery block assembly (10), the electrical energy supplied by means of the input circuit (30) is supplied from a second battery block (1a) of the battery block assembly (10), wherein the voltage applied to the input circuit (30) is less than or equal to the voltage (UA) of the second battery block (la).