WIDE RANGE INPUT DC POWER SUPPLY SYSTEM USING SINGLE POWER CONVERSION UNIT IN A FLYING MACHINE

摘要

According to an embodiment of the present invention, a DC power supply device, supplying power by using a single converter in a power generator for an aircraft, includes an input voltage limiting part determining whether the rotation of a turbine of an aircraft exceeds a preset speed or not; a first output part outputting the output of the power generator for the aircraft in Y-connection when the rotation is not higher than the preset speed; a second output part outputting the output of the power generator in delta connection when the rotation exceeds the preset speed; and a single converter selectively receiving the output of the first or second output part by being connected to the first and second output parts, and performing DC-DC conversion on the received output after rectifying the output.