Patent ID: 7994751

Claim:
A fuel cell power supply device, comprising: a fuel cell; a capacitor connected in parallel to the fuel cell; a voltage boosting means having an input unit connected in parallel to the fuel cell and the capacitor and having an output unit connected to a load, and for boosting output voltages of the fuel cell and the capacitor to supply electric power by the boosted voltages to the load; a first electric power supply unit connected in parallel to the fuel cell and the capacitor and capable of externally supplying electric power; an electric power supply control means for controlling supply of electric power from the fuel cell and the capacitor to the first electric power supply unit, based on an output of the fuel cell and a charge level of the capacitor, in a range where the charge level of the capacitor is not lower than a discharge threshold value of the capacitor, and a secondary battery connected to the output unit of the voltage boosting means via a voltage conversion means.