PAGE CONTENTS
Objectives
The objective of this project is to develop innovative building blocks to reduce the cost of electric power supplies for QinetiQ T5 thruster by at least 30% respect to previous developments (GOCE mission)
Challenges
The following items are identified as key issues and proposed to be included on a future EQM:
- 50V Power Bus compatibility in terms of EMC (emissions and susceptibility) and fuse blowing requirements.
- 20W Auxiliary Converter for generating the auxiliary voltages needed to supply the internal electronics, for example, FPGA, relay drivers, …
- Input Under Voltage Protection
- Depending on customer LV FPGA should be adapted to autonomously fire and control the thruster
- Depending con architecture of the hole PPS system, a Switching Unit could be included
- Direct telemetries to platform, for example, input current o temperature telemetries
- Communication with platform, for example, with the protocol MIL-1553
- BSM electronics should be compatible to 50V power bus, as for this project was agreed to use a 56V to improve efficiency.
Current Status
The activities are all finished. EM model assembled, integrated and tested and results and final conclusions presented to ESA
