Patent ID: 8536833

Claim:
A power supplying apparatus for supplying power to a plurality of loads connected in series, comprising: a plurality of rectifying circuits connected to the plurality of loads respectively; one or more AC circuits sequentially connected with the adjacent rectifying circuits; a plurality of AC generating circuits to apply AC voltages to the respective AC circuits; and switch elements connected between the loads and the rectifying circuits, the switch elements being configured to open and close for selecting the loads to be power supplied from the plurality of loads; wherein the plurality of cell modules are charged; each of the AC circuits comprises a capacitor and an inductor connected in series, and the power supplying apparatus is connected to an assembled battery comprising a plurality of cell modules connected in series, the plurality of cell modules being portions of the plurality of loads; the plurality of rectifying circuits have first and second controlling terminals on an AC side and positive and negative terminals on a DC side, convert alternating currents input from the first and second controlling terminals into direct currents, and supply the direct currents to the plurality of loads via the positive and negative terminals respectively; the first controlling terminals are connected each other via the AC circuits so as to transmit the alternating current having a first-phase, and the second controlling terminals are connected with each other via the AC circuits so as to transmit the alternating current having a second-phase; and the plurality of AC generating circuits have positive electrode input terminals and negative electrode input terminals on the DC side and two AC output terminals on the AC side respectively, convert the direct currents input from the positive and negative electrode input terminals into alternating currents respectively, and apply the AC voltages to the AC circuits via the two AC output terminals respectively.