Defense

Environmental Requirements for COTS Power Supplies

July 7, 2014
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This post, the third in the series about requirements for COTS power supplies, describes tests that ensure that the equipment is properly designed to meet the environmental conditions that it may face during its service. Many of these tests are very stringent: if these demanding requirements must be met, then often a custom solution is likely to be required.

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EMI Requirements for COTS Power Supplies

June 23, 2014
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This is the second in a series describing the requirements that must be met when developing COTS power supplies. At Vicor, we manufacture a range of COTS power components as well as complete COTS power supplies that are available from our Westcor division. A key requirement is for these products to meet Mil-STD 461, which defines the EMI performance that must be achieved.

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What is COTS?

June 9, 2014
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This is the first of a five-part series of blog posts by Jeff Lally, one of Vicor’s product managers, that explains some of the challenges and opportunities presented by the use of COTS products in defense applications. The series covers the most important electrical and environmental standards, and provides insight into how engineers can successfully meet military requirements with COTS components.

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Custom Power Solution Designed for the Toughest Environments

May 30, 2014
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Defense applications can provide some of the toughest challenges for power system designers. Not only are these systems often complex and challenging electrically, but the harsh environments in which they must operate demand a robust and rugged design.

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New Power Systems Help Improve Performance of UAVs

May 28, 2014
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New Power Systems Help Improve Performance of UAVs

A recent article in ECN by Joshua Israelsohn, “Light UAVs serve both military and civilian missions”, describes how important it is to reduce weight to increase the performance on unmanned aerial vehicles (UAVs).

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High Voltage DC Webinar Rebroadcasts now Available on Demand

January 15, 2014
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High Voltage DC Webinar Rebroadcasts now Available on Demand

High Voltage DC power distribution is being rapidly adopted by industries ranging from computing and building management to aerospace and heavy land vehicles. Stephen Oliver, Vice President at Vicor’s VI Chip division, recently presented a two-part webinar series describing Trends, Innovations and Power Design Strategies for High Voltage DC Distribution, which are now available to view on demand.

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Back to Basics: Why do we need active surge suppression?

December 7, 2013
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Back to Basics: Why do we need active surge suppression?

It’s well understood that unexpected electrical disturbances can cause data loss or even permanent damage to any unprotected electronic equipment in their path. Active as well as passive suppression is essential to provide comprehensive protection from all such events. This post shows why this is so, and how active suppression works to fulfil its role. Electrical events threaten electronic equipment by placing excessive electrical energy onto its input power rails in the form of a transient, a surge, or possibly both. A transient is typified as a fast-rising voltage spike of high magnitude –...

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