Skylife Engineering is currently developing the power converter under the Clean Sky 2 (CS2) program and expects to have a final prototype by 2021. That converter is expected to be installed in the regional FTB2 demonstrator.


The HVTRU integrates a 270V DC system into an electrical system based on a 115V AC input. It is compatible with the three phase AC power supply according to MIL-STAD-704F and is not affected by the sequence of the input phase. With a nominal power of 15kW, its efficiency is greater than 90% in a stable state.


The HVTRU includes protections against short circuit, overheating, overvoltage, low voltage, over-wave and open phase. These failures are reported through the ARINC-429 bus.
The HVTRU includes a soft start function and guarantees a THD input current of less than 5% under typical operating conditions, in addition to a power factor greater than 95%.


Especificaciones técnicas

  • Function: AC / DC conversion
  • Input: 115V AC VF 380-488 Hz
  • Output: 270V DC isolated and controlled.
  • Nominal power: 15kW
    150% overload capacity for 5 minutes.
  • Meets the following standards:
    • Electric: MIL-STD-704F
    • Environmental: DO-160 / ED14
    • EMI: DO-160 / ED14
    • DO-254 @ DAL-C

At Skylife Engineering, we adapt our products to different industries and according to the needs of each client.
HEPODIS, belongs to the On board System and Movility business line, is part of the pieces we have in production, upon request. 

This project has received funding from the Clean Sky 2 Joint Undertaking under the European Union Horizon 2020 research and innovation program under grant agreement No 714373.