Power Design Zone

Addressing the New Challenges in Power Distribution

November 16, 2011
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Addressing the New Challenges in Power Distribution

Power supplies have traditionally been designed as “silver boxes” or “bricks”: a self-contained, autonomous voltage-in, voltage-out device, with minimal-impact mechanical and electrical integration with the host system. However, evolution of system requirements – higher power, higher density, higher input voltages, higher load currents and last but not least, higher efficiency –  clearly requires alternative, integrated approaches. With each generation of processor, memory, DSP and ASIC chip, lower voltages at higher currents challenge the infrastructure to supply contemporary “loads” with the requisite electrons.  Electricity from an AC outlet, or a wall plug, typically goes through...

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How to Meet European Standards for Rail Applications

September 4, 2011
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In this video, Marco Panizza, Vicor’s European Applications Manager shows how Vicor’s modular DC-DC converters can meet or exceed European railway standards IEC571/EN51055 and RIA12 if design guidelines are carefully followed. These standards address the harsh environment issues that characterise rail applications, including shock, vibration, extreme temperatures, restricted space, varying voltages, EMC and reliability.

How to Meet European Standards for Rail Applications

 

New Company Video Posted

April 3, 2011
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Optimising Processing Real Estate

October 10, 2007
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Optimising Processing Real Estate

The drive to create metadata processing server systems plus the parallel push for increased port density and triple-play (voice/video/internet) traffic handling in telecommunication systems places greater demands on power management architectures. The problem: inefficient power architectures Traditional designs using AC to 12 Vdc Silver Box followed by 12 V to 1.x Vsynch buck have run aground in terms of system power density and efficiency due to a combination of distribution bus losses and fundamental restrictions in topology performance as processor voltages reach sub-volt levels. Higher voltage (48 V or 350/380 V) bus voltages reduce...

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