| 摘要 |
PROBLEM TO BE SOLVED: To provide a plurality of voltage output type power supplies for a vehicle, capable of decreasing voltage (or capacity) dispersion between battery blocks. SOLUTION: A set of batteries 13 is made up of a lower electricity storage block 111 that outputs a lower power source voltage to a lower voltage load 161 and higher electricity storage blocks 112, 113 that are connected in series to the higher potential side of the lower electricity storage block 111 and output a higher power source voltage to a higher voltage load 162 with the lower electricity storage block 111. DC-DC converters 181, 182 convert the voltage across the terminals of the higher electricity storage blocks 112, 113. By impressing the converted voltage across the lower electricity storage block 111, only the lower electricity storage block 111 is charged by the stored electric power of the higher electricity storage blocks 112, 113. |
