Design Support

Vicor Hosts Power Design Seminars in Three Indian Cities

September 9, 2014
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Vicor will run three half-day seminars in India that will help engineers design and optimize power systems from source to point of load.  These events will be held in Bangalore, Hyderabad and Pune. The seminars will cover a range of topics relevant to designers developing systems for a wide variety of applications. Attendees will learn about the latest DC-DC and AC-DC power components; online tools that can simulate and analyze power chain designs; and techniques to manage isolated and non-isolated loads. The seminars will also describe how using components based on the ChiP platform...

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White Paper: A Novel Approach to Industrial Rectifier Systems

August 31, 2014
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White Paper: A Novel Approach to Industrial Rectifier Systems

AC-DC converters for industrial applications have been relying on double-stage architecture for quite a long time. A non-isolated, single- or three-phase, single- or multi-level stage typically feeds an isolated DC-DC stage, with capacitors between the two stages providing the necessary energy storage. The need for high efficiency and high density has determined the evolution of distributed power systems toward architectures that employ optimized power components. Among those power components, fixed-ratio bus converters have been developed to provide state-of-the-art performance, including components capable of 300-400V DC input that provide isolated, Safety-Extra-Low-Voltage (SELV) output. This paper,...

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Vicor PowerBench Tools: The Filter Design Tool

August 29, 2014
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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

August 28, 2014
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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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Back to Basics: Powering Dynamic Loads

August 21, 2014
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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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Packaging Innovations – Doubling the Surface Area for Cooling

July 29, 2014
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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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