Back to Basics: Powering Dynamic Loads

Back to Basics: Powering Dynamic Loads

Modern electronic loads can demand rapid changes in the supply current. An RF power amplifier, for example, may present a steady-state load of 10% of the rated input power, but this can increase to nearly 100% almost instantly during a transient. Other loads capable of imposing similarly large transients include RF transmitters, test systems, displays, designs with low voltage ASICs and laser diode transmitters. A DC-DC converter can take a few hundred microseconds to respond to a large load step, while a power amplifier may require a recovery time below 100 microseconds to avoid...

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Maurizio Salato Explains Why 48 is the New 12 in PSD Article

Maurizio Salato Explains Why 48 is the New 12 in PSD Article

Power Systems Design (PSD) features an article by Maurizio Salato, director, power systems engineering at Vicor, which describes the transition from 12 V to 48 V power distribution in many data center applications. In the article, Maurizio describes the rapidly increasing demands on data centers as IP-based traffic grows rapidly, resulting in a need for greater server density. The traditional approach of using “silver box” supplies to generate 12 V rails becomes unsustainable as racks demand 20 kW (1.7 kA at 12 V), or more. Moving to 48 V power distribution, particularly when combined...

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Packaging Innovations – Doubling the Surface Area for Cooling

Packaging Innovations – Doubling the Surface Area for Cooling

This is the final blog post in a series of three written by Doug Ping, Principal Application Engineer at Vicor, which explain how packaging innovations play a critical role in the improvement of power system performance.

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COTS: Some General Considerations

This is the final part of the blog series about COTS power systems, highlighting some general considerations that should be taken into account when developing power systems using COTS products.

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Packaging Innovations: As Slick as a Brick

Packaging Innovations: As Slick as a Brick

This is the second in a series of three blog posts written by Doug Ping, Principal Application Engineer at Vicor, which explain how packaging innovations play a critical role in the improvement of power system performance.

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Variations in Input Power: COTS Power Supply Holdup

Variations in Input Power: COTS Power Supply Holdup

This is the fourth post in the series providing an introduction to COTS power supplies, which explains the requirements for holdup in the case of variations in the input power.

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