A high power high voltage DC/DC converter for space applications

摘要

The authors intend to present the design details of a modular DC/DC converter used to power the main Anode Supply of a Mercury Ion motor. This motor, the RIT-35 built by M.B.B. Germany, is used as the propulsion unit of a future ASTEROID GRAVITY OPTICAL & RADAR ANALYSIS (AGORA) mission. In this paper it is intended to show the design selected to cope with the high voltage, high power conversion for space applications and the requirement to operate from an unregulated solar array with a voltage excursion of from 150 volts Beginning-of-Mission (BOM) to 240 volts End-of-Mission (EOM).