Power Design Zone

Thermal Considerations for High Power Density DC-DC Bricks

March 30, 2012
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Thermal Considerations for High Power Density DC-DC Bricks

As DC-DC converters continually increase in power density, careful thermal management is essential to maximise their usable power. Efficiency, although important, is not the only factor. Removal of dissipated heat is also essential, because product reliability and operational life relate inversely to operating temperature. Therefore, robust power system design calls for thermal management that effectively handles load and environmental demands in practice as well as in theory. A converter’s conversion efficiency is the ratio between output and input power. This efficiency depends on its operating parameters, particularly input voltage and output current as well...

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Meeting Conducted Noise Standards

March 30, 2012
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Meeting Conducted Noise Standards

Finding an efficient, compact solution to meeting EMI requirements is a greater challenge than ever.

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Configure your DC-DC Power Module Online

March 30, 2012
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Configure your DC-DC Power Module Online

At Vicor we understand that power system designers face significant challenges to design systems that are becoming increasingly complex and meeting the demands for more functionality, less cost, smaller footprint, and shorter design cycles.  Vicor can help you meet this challenge.

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Power Distribution Solutions for Densely-Populated PCBs

March 5, 2012
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Power Distribution Solutions for Densely-Populated PCBs

As electronic PCBs become more densely packed and supply rail voltages proliferate, delivering the right power to all on-board devices with optimal space and power efficiency becomes essential. This article looks at developments in power distribution architecture and device technology that allows designers to achieve this optimization. As the electronics industry has developed, some inexorable trends have become apparent. Boards decrease in size and become more densely populated. Supply voltages demanded by on-board IC devices such as CPUs, DSPs, FPGAs, logic and memory have proliferated and there is a tendency towards lower levels such...

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Distributed Power Architecture: What’s the Problem?

March 1, 2012
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Distributed Power Architecture: What’s the Problem?

Since the 1980s the bricks of distributed power architecture (DPA) have delivered the classic functions of DC-DC converters (isolation, voltage transformation and regulation) to the point of load. But …at a price in terms of premium space and cost.

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Defense Power Market Trends

February 24, 2012
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Defense Power Market Trends

Vicor’s Kai Johnstad recently sat down with John McHale, editor of Military Embedded magazine, to discuss trends in the defense power market.  His observations, along with those of other power players, have just been published online in the feature article: Military Embedded Systems: Power electronics designs trending smaller and more efficient.

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How to Ensure DC-DC Converter Stability

February 6, 2012
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Most power system designers are aware that the impedance of their power input source should be small compared to the input impedance of their switch-mode DC-DC converter to ensure its stable operation. Also, many designers connect a large electrolytic capacitor across their DC-DC converter input to further increase stability. This article explains why these factors are important and offers designers advice on how to comply with them. Read full PDF article: How to ensure DC-DC converter stability

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