Electric Power Supply Device And Flying Machine Using The Electric Power Supply Device

A flying machine comprising:

• a base body;
• an electric power supply device including at least a secondary battery, which is provided on the base body, and a power generator;
• a thruster provided on the base body for generating thrust force with electric power supplied from the electric power supply device;
• a state acquisition unit for acquiring a flight state of the base body;
• and
• a flight control unit for controlling a flight of the base body by controlling the thrust force of the thruster based on the flight state acquired by the state acquisition unit,
• wherein the electric power supply device further includes a power control unit for controlling the electric power supplied from the electric power supply device to the thruster,
• the power control unit includes a converter, which is turned on to charges the secondary battery by the power generator when a charging condition is satisfied, the charging condition being that a voltage of the power generator is higher than that of the secondary battery, a voltage of the secondary battery is lower than a present voltage and a current supplied from the secondary battery to the thruster is zero.