Single Converter Hall Thruster Power Processor

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: F04611-02-M-0026
Agency Tracking Number: 02-0734
Amount: $69,942.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
11 Tech Circle, Natick, MA, 01760
DUNS: 184629491
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bruce Pote
 (508) 655-5565
Business Contact
 Judy Budny
Title: Contracts Administrator
Phone: (508) 655-5565
Research Institution
"The need for low mass, cost and complexity electric propulsion systems driven by the growing interest in microsatellites to perform high delta-V missions requiring north/south station keeping, orbit transfer, inclination changes and precise formationflying can be enabled by Busek's multi-mode low power Hall thruster. However, state-of-the-art electric propulsion technology is complex and costly for many mission applications. Of the subsystems that comprise the propulsion system, the most fruitful toachieve a significant reduction in cost, complexity and mass is the power processing unit.In Phase I, Busek will demonstrate the feasibility of a new power processing architecture that replaces the four (4) main DC to DC converters of the conventional PPU with a single converter architecture.The single converter design utilizes a high power converter to provide the discharge power to the thruster and both heat and start the cathode. The proposed converter topology will be a derivative of Busek's nominal 500 W (350 V; 1.5 A) dischargeconverter developed and demonstrated as part of the AFRL/VS TechSat 21 mission. In addition Busek will develop a modified cathode design capable of heating at low input current. Experiments will be performed to develop a starting sequence and operatingalgorithm for the thruster. The long-term objective is to develop a simplified flight qualification low power Hall thruster system with high performance and

* Information listed above is at the time of submission. *

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