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February 2005

Departments

Publisher's Notebook
The Pendulum Effect


The Inside Track


COTS Products


Editorial
InfiniBand: The Winning Fabric


Features

Hardware Assets
Distributed Power

Distributed Trend Hits All Aspects of Power Conversion
Jeff Child

The shift toward distributed power schemes and advances in power conversion technologies are affecting all types of systems, from VME to PC/104 to non-standard form-factor designs.

Power Scheme Suits Navy Shipboard Requirements
Robert Kirker, Applications Engineer, Advanced Conversion Technology

Naval shipboard power systems are held to some stringent operating requirements. A unique circuit scheme delivers the needed harmonic distortion and EMI specs.

Forward Converter Topology Design Yields Efficiency
Moshe Domb, Research/Development Director, Cherokee International

A modified forward converter scheme boasts high efficiency and zero "turn off" losses. Snubber circuitry reduces “turn on” and minimizes EMI effects.

Special Feature
Power Conversion Directory

Power Conversion Directory
Jeff Child

On the Softer Side
Safety-Critical Software

RTOSes and Java Flex Their Safety-Critical Muscles
Jeff Child

Safety-critical standards such as DO-178B and ARINC-653 are making off-the-shelf embedded OSes ever-more attractive to defense system developers.

In Pursuit of Safety-Critical Java
Kelvin Nilsen, Ph.D., Chief Technology Officer, Aonix

The world of safety-critical software and the world of Java are no longer estranged. Efforts are underway to craft specifications and platform solutions for safety-critical Java.

Automated Approach Wins for Software Security Reviews
Bob Fleck, Director of Research, John Viega, Chief Technology Officer, Secure Software

Keeping software free of security holes is a tricky, complex task. Automated tools and methods help smooth the way.

Test and Screening
HALT/HASS: Component Issues

Despite Questions of Validity, HALT and HASS Remain Prevalent
Chris A. Ciufo

Of the two tests, HALT is the more controversial, though HASS has detractors too.

Technology Focus
Board Standards Update

Standards Continue to Cull Favor in the Military

Widely adopted for only about 15 years, the history of standard-bus architectures used in the military remains significant despite dramatic changes in technology. Though new standard architectures are evolving, will history repeat itself and revert to some least-common denominator—backward compatible with other generations?

Progress Report – VITA 46 and VITA 48
Stewart Dewar, Chair, VITA 46 Working Group, Curtiss-Wright Controls Embedded Computing

Widely adopted for only about 15 years, the history of standard-bus architectures used in the military remains significant despite dramatic changes in technology. Though new standard architectures are evolving, will history repeat itself and revert to some least-common denominator—backward compatible with other generations?

The Embedded Platform for Industrial Computing (EPIC): A New Standard for COTS Applications
Robert A. Burckle, Vice President, WinSystems

The continuum of small form-factor boards just got an official new entry: the open-standard, and PC/104 Consortium-sanctioned, EPIC board. It fits nicely between PC/104 and EBX sizes.

Defining a Standard for Embedded RISC Systems
Winfried Wolf, Product Manager, Kontron

The choice between an industry-standard form-factor and a full custom single board computer can be bridged using RISC-based component-level Computer-on-Module products.

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