Vicor PowerBench Tools: The Filter Design Tool

Vicor PowerBench Tools: The Filter Design Tool

Input filters are a critical element of power systems, particularly when demanding EMI requirements must be met. But input filter design can be a complex and time consuming process. If you are responsible for input filter development, try the Vicor PowerBench® Filter Design Tool, a free online calculator that will help you develop a filter that meets your system’s requirements. The Vicor Filter Design Tool offers a wide range of options. You set the attenuation and frequency at which the attenuation is achieved, and then simply select the filter topology to be used from:...

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The New MIL-COTS PRM® Regulator

The New MIL-COTS PRM® Regulator

The new Vicor PRM regulator (MPRM48NF480M500A00) is based on our VI Chip® platform, and provides power density of 106W/cm3 and efficiency of 97.7%. The new regulator delivers 500W output power in the same package size as our earlier generation 120W MIL-COTS PRMs. For applications such as unmanned aerial vehicles (UAVs) this fourfold increase in power density can provide a game-changing advantage. Designers of military systems are acutely focused on achieving aggressive size, weight and power (SWAP) profiles that will give military vehicles greater agility to fulfill increasingly ambitious missions. Reducing the weight of UAVs...

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Powering a Homecoming in 90 Days: Part 1

The weather was clear and the seas were calm when the orders arrived instructing the captain to come about and plot a course home to Norfolk Virginia – some one hundred days away.  It was a call to all hands that it was time to begin the preparations allowing the ship to return to its home port.  This included getting all of those systems checked and working that were turned off some nine months earlier when it put out to sea. One of about a dozen key environmental in-port systems that allows the ship...

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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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