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New Generation Power System for Space ApplicationsThe Deep Space Avionics (DSA) Project is developing a new generation of power system building blocks. Using application specific integrated circuits (ASICs) and power switching modules a scalable power system can be constructed for use on multiple deep space missions including future missions to Mars, comets, Jupiter and its moons. The key developments of the DSA power system effort are five power ASICs and a mod ule for power switching. These components enable a modular and scalab le design approach, which can result in a wide variety of power syste m architectures to meet diverse mission requirements and environments . Each component is radiation hardened to one megarad) total dose. The power switching module can be used for power distribution to regular spacecraft loads, to propulsion valves and actuation of pyrotechnic devices. The number of switching elements per load, pyrotechnic firin gs and valve drivers can be scaled depending on mission needs. Teleme try data is available from the switch module via an I2C data bus. The DSA power system components enable power management and distribution for a variety of power buses and power system architectures employing different types of energy storage and power sources. This paper will describe each power ASIC#s key performance characteristics as well a s recent prototype test results. The power switching module test results will be discussed and will demonstrate its versatility as a multip urpose switch. Finally, the combination of these components will illu strate some of the possible power system architectures achievable fro m small single string systems to large fully redundant systems.
Document ID
20070023590
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Jones, Loren (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Carr, Greg (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Deligiannis, Frank (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lam, Barbara (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Nelson, Ron (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Pantaleon, Jose (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ruiz, Ian (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Treicler, John (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wester, Gene (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sauers, Jim (Lockheed Martin Corp. Newtown, PA, United States)
Giampoli, Paul (Lockheed Martin Corp. Newtown, PA, United States)
Haskell, Russ (Lockheed Martin Corp. Newtown, PA, United States)
Mulvey, Jim (Lockheed Martin Corp. Newtown, PA, United States)
Repp, John (Lockheed Martin Corp. Newtown, PA, United States)
Date Acquired
August 23, 2013
Publication Date
August 16, 2004
Subject Category
Spacecraft Propulsion and Power
Meeting Information
International Engery Conversion Engineering Conference(Providence, RI)
Distribution Limits
Public
Copyright
Other
Keywords
power switching
Deep Space Avionics (DSA) Project
application specific integrated circuits (ASICs)
power systems