| 摘要 |
PROBLEM TO BE SOLVED: To provide a power feed device which can properly charge a power supply for driving an auxiliary machine while reducing a potential difference between a plurality of power supplies. SOLUTION: The power feed device is constituted in such a manner that first and second power accumulation modules B1, B2 mainly used as main power supplies and a third power accumulation module B3 used as the power supply for driving the auxiliary machine are magnetically connected to each other by a common transformer, connection states to loads of the first and second power accumulation modules B1, B2 are switched by the on/off-switching of first to third connecting switches 11 to 13, and currents flowing to the common transformer from the first and second power accumulation modules B1, B2 are controlled by operations of first and second charge control switches 25a, 26a. Then, a controller 30 controls the operations of the first to third connecting switches 11 to 13 and the first and second charge control switches 25a, 26a on the basis of a potential difference between a load-requiring voltage and the first and second power accumulation modules B1, B2. COPYRIGHT: (C)2010,JPO&INPIT |
