ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    facet.materialart.
    Unbekannt
    A wide-band wattmeter for the measurement and analysis of power dissipation in semiconductor switching devices (1970)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Beschreibung: Wideband wattmeter for measurement and analysis of power dissipation in semiconductor switching devices, considering occurrence of peaks, frequency dependency of average dissipation, etc
    Schlagwort(e): ELECTRONIC EQUIPMENT
    Materialart: ; UGREVUE(
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unbekannt
    Power processing and distribution for the space shuttle craft (1970)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Beschreibung: Electric power processing and distribution system for space shuttle vehicles
    Schlagwort(e): AUXILIARY SYSTEMS
    Materialart: SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 6 JUL. 1970; P 339-348
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unbekannt
    A method of resonant current pulse modulation for power converters (1970)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Beschreibung: Switch controlled resonant current pulse modulation for power converters, noting integration with spacecraft ion propulsion engine
    Schlagwort(e): AUXILIARY SYSTEMS
    Materialart: ; ACE(
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unbekannt
    Bi-directional four quadrant (BDQ4) power converter development (1979)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: The feasibility for implementation of a concept for direct ac/dc multikilowatt power conversion with bidirectional transfer of energy was investigated. A 10 kHz current carrier was derived directly from a common 60 Hz three phase power system. This carrier was modulated to remove the 360 Hz ripple, inherent in the three phase power supply and then demodulated and processed by a high frequency filter. The resulting dc power was then supplied to a load. The process was implemented without the use of low frequency transformers and filters. This power conversion processes was reversible and can operate in the four quadrants as viewed from any of the two of the converter's ports. Areas of application include: power systems on air and spacecraft; terrestrial traction; integration of solar and wind powered systems with utility networks; HVDC; asynchronous coupling of polyphase networks; heat treatment; industrial machine drives; and power supplies for any use including instrumentation.
    Schlagwort(e): ENERGY PRODUCTION AND CONVERSION
    Materialart: NASA-CR-159660
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unbekannt
    System design and performance of earth/lunar horizon sensor BEC project 3744 (1966)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: An infrared horizon sensor system has been designed which is capable of searching over a wide field for the edges of a planet and, upon locating such edges, stations itself in a position which provides signals which identify the local vertical to the planet. In this fixed attitude it requires no continuous mechanical movement and operates with a minimum utilization of power. The system is thus capable of providing a high degree of accuracy when used for local vertical determination in orbits around the earth, the moon, or other planets. A detailed description of the design and operating features of the horizon scanner is given and the evaluation test data which have been completed are presented.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: NASA-CR-115750 , TR-3744-11A
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unbekannt
    Engineering information on an Analog Signal to Discrete Time Interval Converter (ASDT-IC) (1974)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: An electronic control system for nondissipative dc power converters is presented which improves (1) the routinely attainable static output voltage accuracy to the order of + or - 1% for ambient temperatures from -55 to 100 C and (2) the dynamic stability by utilizing approximately one tenth of the feedback gain needed otherwise. Performance is due to a functional philosophy of deterministic pulse modulation based on pulse area control and to an autocompensated signal processing principle. The system can be implemented with commercially available unselected components.
    Schlagwort(e): COMMUNICATIONS
    Materialart: NASA-CR-134544
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unbekannt
    A governing electronic mechanism of the ion propulsion engine (1970)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-27
    Beschreibung: Stress tolerant thyristor and transistor switching electronic converter for ion propulsion engine
    Schlagwort(e): PROPULSION SYSTEMS
    Materialart: AIAA PAPER 70-1157
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unbekannt
    Power processing (1971)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: Processing of electric power has been presented as a discipline that draws on almost every field of electrical engineering, including system and control theory, communications theory, electronic network design, and power component technology. The cost of power processing equipment, which often equals that of expensive, sophisticated, and unconventional sources of electrical energy, such as solar batteries, is a significant consideration in the choice of electric power systems.
    Schlagwort(e): ELECTRONICS
    Materialart: NASA-SP-244 , LC-71-609944
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unbekannt
    Saturation current protection apparatus for saturable core transformers Patent (1970)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: Magnetic current regulator for saturable core transformer
    Schlagwort(e): ELECTRONIC EQUIPMENT
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unbekannt
    Load insensitive electrical device (1974)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: A class of power converters is described for supplying direct current at one voltage from a source at another voltage. It includes a simple passive circuit arrangement of solid-state switches, inductors, and capacitors by which the output voltage of the converter tends to remain constant in spite of changes in load. The switches are sensitive to the current flowing in the circuit and are employed to permit the charging of capacitance devices in accordance with the load requirements. Because solid-state switches (such as SCR's) may be used with relatively high voltage and because of the inherent efficiency of the invention that permits relatively high switching frequencies, power supplies built in accordance with the invention, together with their associated cabling, can be substantially lighter in weight for a given output power level and efficiency of operation than systems of the prior art.
    Schlagwort(e): THERMODYNAMICS AND COMBUSTION
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...