| 摘要 |
PROBLEM TO BE SOLVED: To make a load factor and a lifetime of each power source system uniform and to simplify the system. SOLUTION: The power source system comprises a plurality of DC/DC converters connected in parallel, an auxiliary battery 5 which is charged by the DC/DC converters and feeds electricity to a load and a control unit C which is connected with a plurality of the DC/DC converters and controls the start-up order of a plurality of the DC/DC converters by sending a start signal with a time difference to a plurality of the DC/DC converters. Each DC/DC converter detects signals corresponding to a starting condition of the other DC/DC converters and recognizes the starting order, then set a voltage to charge the auxiliary battery 5 which corresponds to the start-up order so recognized. |
