| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell power supply device capable of reducing an inrush current from a fuel cell to a capacitor after starting a fuel cell system. <P>SOLUTION: This fuel cell power supply device 1 is composed by connecting the fuel cell 11 and the capacitor 12 in parallel with each other. A fuel cell connection switch 16 and a reverse connection prevention diode 17 are serially connected at a positive-side output end of the fuel cell; and a load such as a capacitor electric accessory and an inverter 2 are connected in parallel with each other on the downstream side relative to the reverse connection prevention diode 17. The positive-side terminal of the capacitor is connected to the downstream side of the reverse connection prevention diode at the positive-side output end of the fuel cell through a capacitor connection switch 18. When it is detected that the voltage of the capacitor is set lower than the open voltage of the fuel cell, the capacitor is separated, power is supplied to the load by the fuel cell, and, when the output voltage of the fuel cell is lowered and coincides with the capacitor voltage, the capacitor is connected to the fuel cell and the load. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
