The electricity supply device (100) supplies electricity using electromagnetic force and opposes an external electricity reception coil (153a). An electricity supply coil (102a) has a hollow section (102b), and has a spiral shape. A reader (103) has an ant...

Embodiments of the disclosure include an electric taxi system including a generator configured to provide an AC power source and a main controller configured to generate one or more PWM control signals. The electric taxi system also includes a plurality of...

Simplifying the controller of hybrid type drive unit. The output of a generator (G) driven by engine (E) is connected directly to a motor (7) through a converter or switching circuit (10) without being charged on any battery. The output of each phase of th...