SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Wideband wattmeter for measurement and analysis of power dissipation in semiconductor switching devices, considering occurrence of peaks, frequency dependency of average dissipation, etc
Upstream gas photoionization caused precursor ionization effects on MHD switch-on shock structure
Evaluation results and accuracy improvement of two flux switching mathematical models for magnetic cores
Using electron beam switching for brushless motor commutation
Increasing power conversion efficiency of electronic amplifiers by power supply switching
Thermionic diode switch for use in high temperature region to chop current from dc source
Characteristics of hermetically sealed electric switch with flexible operating capability
Solid state switching matrix for solar electric propulsion
Automatic thermal switch for improving efficiency of cooling gases below 40 K
Multiple circuit switch apparatus requiring minimum hand and eye movement by operator
Electrical switching device comprising conductive liquid confined within square loop of deformable nonconductive tubing also used for leveling
Communications control group teletype line switching equipment for space stations
Sight switch using infrared source and sensor mounted beside eye
Complementary regenerative transistorized switch circuit employing positive and negative feedback
Switching series regulator with gating control network
Microwave waveguide switch with rotor position control
Solid state circuit for switching alternating current input signal as function of direct current gating transistor