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  • ELECTRONIC COMPONENTS AND CIRCUITS  (1)
  • ELECTRONICS AND ELECTRICAL ENGINEERING  (1)
  • 1975-1979  (2)
  • 1
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    Unknown
    Capacitive connectors for digital-data lines (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Proposed connector consisting of twin metal films separated by thin layers of insulating material transmits digital pulses capacitively. There is no direct contact between metal films; therefore, there is no ohmic contact drop and no wear when connections are changed. Since metal films are sealed in insulating material, there is no corrosion from exposure to atmosphere.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: GSC-12238 , NASA Tech Briefs (ISSN 0145-319X); 2; 2; P. 3
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Three phase full wave dc motor decoder (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A three phase decoder for dc motors is disclosed which employs an extremely simple six transistor circuit to derive six properly phased output signals for fullwave operation of dc motors. Six decoding transistors are coupled at their base-emitter junctions across a resistor network arranged in a delta configuration. Each point of the delta configuration is coupled to one of three position sensors which sense the rotational position of the motor. A second embodiment of the invention is disclosed in which photo-optical isolators are used in place of the decoding transistors.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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