Aircraft power supply

AC/DC

Champion Aerospace is preparing for the age of the More Electric Aircraft (MEA) or All Electric Aircraft (AEA) by transforming its highly pedigreed 28VDC Transformer Rectifier Unit (TRU) to a 270VDC or 540VDC Power Supply system to support operation of new electromechanical equipment that will replace traditional pneumatic or hydraulic power. This operating voltage provides improved electrical efficiency, drives lower aircraft weight, improves aircraft safety/reliability and provides positive environmental impacts. 270VDC is accomplished by rectifying the traditional 3 phase 115VAC 400Hz line-to-line voltages via typical AC-DC conversion methods that meet requirements of MIL-STD-704. 270VDC Power Supply Key Design Parameters: Voltage Regulation:270 Volts DC (260-280 Volts DC) Min/Max Normal Transients:250/280 Volts DC at 40ms Ripple Voltage:6 Vpk maximum Cooling:Self-cooled (Fan or Blast Air) or Free Convection Cooled Versions Power:270VDC Typical Range for aircraft applications is 5 to 450 amps; MEA applications could be considerably higher power.