| 摘要 |
PROBLEM TO BE SOLVED: To enable charging a battery properly by properly controlling a distributing condition of current flowing in a fuel cell and a battery without increasing battery capacity, and also to drive the fuel cell and the battery by maintaining output distribution of the fuel cell and the battery in a given condition, so as to keep efficiency of the fuel cell device as a whole as high as possible. SOLUTION: Current supplied to a load from a fuel cell 11 of a fuel cell device equipped with the fuel cell 11 having both terminals connected to the load, and a secondary cell circuit connected in parallel to the fuel cell 11 including a booster circuit, a charging circuit and a secondary cell, is controlled so as to get efficiency of the fuel cell 11 as a system as high as possible. |
