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The benefits of a shift from 48V to 12V.

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Title: The benefits of a shift from 48V to 12V.
Authors: Modi, HR1
Source: Electronics Weekly. 11/23/2005, Issue 2219, p22-24. 2p. 2 Diagrams, 3 Charts, 1 Graph.
Subjects: DC-to-DC converters, Integrated circuits, Voltage regulators, Power transmission, Cost effectiveness, Reduced instruction set computers, Electronics, Microelectronics
Abstract: The article focuses on the benefits of migrating from a 48V to a 12V distribution bus that eliminates need for isolated DC-DC converters. Powering the integrated circuits scattered on and across the multiple PCBs in a system has always presented challenges to power-supply designers. As long as the required voltages were relatively high, it was possible to locate the power conversion in a remote area of the system, where thermal and noise management was easier. The next emerging trend, driven by technology-conversion advances and cost considerations, is the shift from a 48V to a 12V distribution bus and the resulting elimination of the onboard isolated DC-DC converter. The distribution of a higher 48V-bus voltage at lower currents allows for smaller traces and connectors. Mainframe computers have for many years used such power-distribution methods.
Database: Engineering Source
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  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 19170085
AccessLevel: 6
PubType: Periodical
PubTypeId: serialPeriodical
PreciseRelevancyScore: 0
IllustrationInfo
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  Data: The benefits of a shift from 48V to 12V.
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  Data: <searchLink fieldCode="AR" term="%22Modi%2C+HR%22">Modi, HR</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Electronics+Weekly%22">Electronics Weekly</searchLink>. 11/23/2005, Issue 2219, p22-24. 2p. 2 Diagrams, 3 Charts, 1 Graph.
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  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22DC-to-DC+converters%22">DC-to-DC converters</searchLink><br /><searchLink fieldCode="DE" term="%22Integrated+circuits%22">Integrated circuits</searchLink><br /><searchLink fieldCode="DE" term="%22Voltage+regulators%22">Voltage regulators</searchLink><br /><searchLink fieldCode="DE" term="%22Power+transmission%22">Power transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Cost+effectiveness%22">Cost effectiveness</searchLink><br /><searchLink fieldCode="DE" term="%22Reduced+instruction+set+computers%22">Reduced instruction set computers</searchLink><br /><searchLink fieldCode="DE" term="%22Electronics%22">Electronics</searchLink><br /><searchLink fieldCode="DE" term="%22Microelectronics%22">Microelectronics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The article focuses on the benefits of migrating from a 48V to a 12V distribution bus that eliminates need for isolated DC-DC converters. Powering the integrated circuits scattered on and across the multiple PCBs in a system has always presented challenges to power-supply designers. As long as the required voltages were relatively high, it was possible to locate the power conversion in a remote area of the system, where thermal and noise management was easier. The next emerging trend, driven by technology-conversion advances and cost considerations, is the shift from a 48V to a 12V distribution bus and the resulting elimination of the onboard isolated DC-DC converter. The distribution of a higher 48V-bus voltage at lower currents allows for smaller traces and connectors. Mainframe computers have for many years used such power-distribution methods.
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=19170085
RecordInfo BibRecord:
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 2
        StartPage: 22
    Subjects:
      – SubjectFull: DC-to-DC converters
        Type: general
      – SubjectFull: Integrated circuits
        Type: general
      – SubjectFull: Voltage regulators
        Type: general
      – SubjectFull: Power transmission
        Type: general
      – SubjectFull: Cost effectiveness
        Type: general
      – SubjectFull: Reduced instruction set computers
        Type: general
      – SubjectFull: Electronics
        Type: general
      – SubjectFull: Microelectronics
        Type: general
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      – TitleFull: The benefits of a shift from 48V to 12V.
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            – D: 23
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              Text: 11/23/2005
              Type: published
              Y: 2005
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