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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 109 records · Page 6

Self-starting circuit for switching regulators

Schematic is provided on a self-starting circuit for a switching regulator which uses a logic circuit to sense a change in output voltage and provides a correction signal for dc power sources. With this device, the total power consumed by the logic circuitry is held to a minimum, and the circuit receives the optimum regulated supply power.

Schraut, E. H.↗

Prediction of performance of centrifugal pumps during starts under pressure

Method which calculates start-up characteristics of centrifugal pumps reveals a capacity to predict pressure drop characteristics of pumps with vaned diffusers. Calculations are based on pump geometry, design-point flow, speed, and pressure rise, and the pump characteristic within range of approximately ten percent of the design-point flow.

Rostafinski, W.↗

Starting criterion for hypersonic inlets

Starting criterion for hypersonic inlets with large turbulent boundary layers, considering total pressure recovery from all shock and viscous losses

Goldberg, T. J.↗