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Move to 12V bus eliminates need for isolated dc/dc converters.

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Title: Move to 12V bus eliminates need for isolated dc/dc converters.
Authors: Modi, H. R.1
Source: EDN (0012-7515). 10/27/2005, Vol. 50 Issue 22, p83-84. 2p. 2 Diagrams, 3 Charts, 1 Graph.
Subjects: Power resources, Integrated circuits, Computer input-output equipment, Computer architecture, Microprocessors
Abstract: This article focuses on the benefits of the lower voltage 12-volt bus in powering the integrated circuits scattered on and across the multiple computer boards in a system. The next emerging trend, driven by technology-conversion advances and cost considerations, is the shift from a 48-volt to a 12-volt distribution bus and the resulting elimination of the onboard isolated direct current/direct current converter. The migration from multiple output-power supplies, driven by the lower voltage and higher current requirements of the latest microprocessors, has reached a point at which today's systems exclusively use a single 48-volt front-end power supply with final conversion to the lower voltages done on the computer board. The increasing converter-power densities and the resulting converter- size reductions are major reasons for the rapid adoption of a distributed-power architecture.
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 18797296
AccessLevel: 6
PubType: Periodical
PubTypeId: serialPeriodical
PreciseRelevancyScore: 0
IllustrationInfo
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  Data: <searchLink fieldCode="JN" term="%22EDN+%280012-7515%29%22">EDN (0012-7515)</searchLink>. 10/27/2005, Vol. 50 Issue 22, p83-84. 2p. 2 Diagrams, 3 Charts, 1 Graph.
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  Data: <searchLink fieldCode="DE" term="%22Power+resources%22">Power resources</searchLink><br /><searchLink fieldCode="DE" term="%22Integrated+circuits%22">Integrated circuits</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+input-output+equipment%22">Computer input-output equipment</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+architecture%22">Computer architecture</searchLink><br /><searchLink fieldCode="DE" term="%22Microprocessors%22">Microprocessors</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This article focuses on the benefits of the lower voltage 12-volt bus in powering the integrated circuits scattered on and across the multiple computer boards in a system. The next emerging trend, driven by technology-conversion advances and cost considerations, is the shift from a 48-volt to a 12-volt distribution bus and the resulting elimination of the onboard isolated direct current/direct current converter. The migration from multiple output-power supplies, driven by the lower voltage and higher current requirements of the latest microprocessors, has reached a point at which today's systems exclusively use a single 48-volt front-end power supply with final conversion to the lower voltages done on the computer board. The increasing converter-power densities and the resulting converter- size reductions are major reasons for the rapid adoption of a distributed-power architecture.
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=18797296
RecordInfo BibRecord:
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      – Code: eng
        Text: English
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        PageCount: 2
        StartPage: 83
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      – SubjectFull: Power resources
        Type: general
      – SubjectFull: Integrated circuits
        Type: general
      – SubjectFull: Computer input-output equipment
        Type: general
      – SubjectFull: Computer architecture
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      – SubjectFull: Microprocessors
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      – TitleFull: Move to 12V bus eliminates need for isolated dc/dc converters.
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              Text: 10/27/2005
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              Y: 2005
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