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Results for “voltage”

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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At least 541 records · Page 30

All sources NASA NTRS DOE OSTI

NASA NTRS1967

Design and fabrication of an analog voltage to duty cycle generator Interim progress report

Design and fabrication of analog voltage to duty cycle generator

ANALOG-TO-DIGITAL CONVERTER↗

NASA NTRS1967

Design and development of a high power, low saturation voltage silicon switching transistor Quarterly report

Silicon switching transistor with saturation voltage of 0.1 V at 75 A collector current

SATURATION↗

NASA NTRS1967

Erosion of metallic electrodes in a low- voltage spark

Electrical erosion of metallic electrodes in low voltage spark

SPARK EROSION MACHINING↗

NASA NTRS1967

Voltage-current characteristics of Hartmann boundary layers in plasmas.

Voltage-current characteristics measured by Fahleson alternate explanation, based on properties of Hartmann boundary layer in continuum type plasma

STEADY FLOW↗

NASA NTRS1967

High perveance accelerator grids for low voltage Kaufman thrustors.

Conventional and composite grid designs tested with low voltage Kaufman thrustor

ELECTROSTATIC PROPULSION↗

NASA NTRS1967

Ion rocket engine propellant systems and high voltage electrical isolation studies.

Cesium propellant systems utilizing surface tension to position and transfer liquid propellant in zero-g environment studied with high voltage electrical isolation methods

PROPELLANT TRANSFER↗

NASA NTRS1967

Inexpensive, high vacuum, high voltage, electric feedthrough.

Inexpensive high vacuum high voltage feedthrough used in conical shock driver system for plasma research

ELECTRONIC EQUIPMENT↗

NASA NTRS1967

Linear current-voltage characteristics in type- II superconductors under conditions of flux flow.

Linear current-voltage characteristics in type II SUPERCONDUCTORS under flux flow conditions

ELECTRIC CURRENT↗

NASA NTRS1967

A method for predicting solar cell current- voltage curve characteristics as a function of incident solar intensity and cell temperature.

Computer program for predicting silicon solar cell current-voltage characteristics as function of incident solar intensity and cell temperature over heliocentric distances

PERFORMANCE PREDICTION↗

NASA NTRS1968

Linear analog dc voltage-to-pulse-width converter

Circuit converts a dc analog input signal to pulse widths that are proportional to the input signal voltage. The circuit would be particularly useful as an analog-to-digital converter where low power, ruggedness, reliability, and good linearity are prime requirements.

Crocket, W. R.↗

NASA NTRS1968

High-voltage pulse generator developed for wide-gap spark chambers

Low-inductance, high-capacitance Marx pulse generator provides for minimization of internal inductance and suppression of external electromagnetic radiation. The spark gaps of the generator are enclosed in a pressurized nitrogen atmosphere which allows the charging voltage to be varied by changing the nitrogen pressure.

Keller, L. P.↗

NASA NTRS1968

Current-limiting voltage regulator

Voltage regulator, which operates within preset current limits, acts as a circuit breaker to prevent overload failure, and automatically resets when the overload is removed. The power dissipated in the series transistor of the circuit is constant from normal load to short circuit condition.

Cleveland, E. F.↗

NASA NTRS1968

Transistorized Marx bank pulse circuit provides voltage multiplication with nanosecond rise-time

Base-triggered avalanche transistor circuit used in a Marx bank pulser configuration provides voltage multiplication with nanosecond rise-time. The avalanche-mode transistors replace conventional spark gaps in the Marx bank. The delay time from an input signal to the output signal to the output is typically 6 nanoseconds.

Jung, E. A.↗

NASA NTRS1968

Lithium-tellurium bimetallic cell has increased voltage

Lithium-tellurium secondary cell with a fused lithium halide electrolyte, tested in the temperature range 467 degrees to 500 degrees C, showed improvement over the sodium bismuth cell. The voltage of this bimetallic cell was increased by using the more electropositive anode material, lithium, and the more electronegative cathode material, tellurium.

Cairns, E. J.↗

NASA NTRS1966