Patent ID: 6633091
Filing Date: 2003-10-14
Classification: H02J

Abstract:
A storage module comprising:a plurality of storage means for storing electric energy; energy transfer means for transferring the electric energy among the plurality of storage means to keep a charging voltage across each of the storage means at a value according to a predetermined ratio; coupling means for mechanically coupling to another storage module that has the same configuration as the storage module; and a connection terminal to which a drive signal is input, wherein the energy transfer means includes a plurality of series circuits each having at least a first winding and switching means connected in series, each of the plurality of series circuits is adapted to be connectable in parallel to each of the plurality of storage means, the plurality of first windings are magnetically coupled with one another, and the plurality of switching means are switching-controlled synchronously with one another, and wherein the drive signal switches the switching means of the storage module and the switching means of the another storage module synchronously with one another.