Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Scott S. Gerber"'
Autor:
Gerald M. Hill, Elmer L. Griebeler, Michael V. Aulisio, Frank Hewitt, Scott S. Gerber, Joseph E. Scina, Luis R. Pinero
Publikováno v:
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
NASA is developing technologies for nuclear electric propulsion for proposed deep space missions in support of the Exploration initiative under Project Prometheus. Electrical power produced by the combination of a fission-based power source and a Bra
Publikováno v:
2nd International Energy Conversion Engineering Conference.
The free-piston Stirling power convertor is being considered as an advanced power conversion technology to be used for future NASA deep space missions requiring long life radioisotope power systems. This technology has a conversion efficiency of over
Autor:
Scott S. Gerber, Frank Hewitt, Michael Aulisio, Joseph E. Scina, Malik Elbuluk, Leonard Miller
Publikováno v:
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit.
NASA has proposed a bold mission to orbit and explore the moons of Jupiter. This mission, known as the Jupiter Icy Moons Orbiter (JIMO), would significantly increase NASA s capability to explore deep space by making use of high power electric propuls
Autor:
Malik Elbuluk, Ahmad Hammoud, Richard L. Patterson, Scott S. Gerber, Rajeshuni Ramesham, Reza Ghaffarian
Publikováno v:
1st International Energy Conversion Engineering Conference (IECEC).
Electronic modules and power circuits designed for use on many of NASA space missions are required to be efficient, reliable, and capable of operation in harsh environments. Some of these environmental stresses that are encountered in a typical deep
Publikováno v:
Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).
DC/DC converters are widely used in power management, conditioning, and control of space power systems. Deep space applications require electronics that withstand cryogenic temperature and meet a stringent radiation tolerance. In this work, the perfo
Publikováno v:
AIP Conference Proceedings.
A dynamic model for a free‐piston Stirling convertor is being developed at the NASA Glenn Research Center. The model is an end‐to‐end system model that includes the cycle thermodynamics, the dynamics, and electrical aspects of the system. The s
Publikováno v:
IECEC 96. Proceedings of the 31st Intersociety Energy Conversion Engineering Conference.
A 10 W 30 V/5.0 V push-pull DC-DC power converter breadboard, designed by the Jet Propulsion Laboratory (JPL) with a +50/spl deg/C to +5/spl deg/C operating range for the Cassini space probe, was characterized for lower operating temperatures. The br
Publikováno v:
IECEC 96. Proceedings of the 31st Intersociety Energy Conversion Engineering Conference.
The low temperature (25/spl deg/C to -175/spl deg/C) performance of a 120 W, 100 kHz, 42/12 V phase-shifted zero-voltage-switched full-bridge DC-DC power converter designed with commercially available components is reported. Its efficiency increased
Publikováno v:
Proceedings of Applied Power Electronics Conference. APEC '96.
Low temperature performance of a 150 W, 50 kHz, 24/48 V boost PWM DC-to-DC power converter is reported. The efficiency of the power converter using a molypermalloy powder (MPP) core based inductor went up from 94% at room temperature (23/spl deg/C) t
Autor:
Janis M. Niedra, Scott S. Gerber
Publikováno v:
IECEC 96. Proceedings of the 31st Intersociety Energy Conversion Engineering Conference.
The L-C resonant decay technique for measuring circuit Q or losses is improved by eliminating the switch from the inductor-capacitor loop. A MOSFET switch is used instead to momentarily connect the resonant circuit to an exciting voltage source, whic