Military, Aerospace & Hi-Rel

July 2014

Considering power inverters in demanding applications

Aengus Murray and Bob Zwicker, Analog Devices

Concerns over climate changes due to carbon emissions have resulted in the increasing application of power electronic inverters in both renewable energy applications and in energy efficient motor drives. Safe and reliable operation of these systems requires that the power electronic circuits connected di

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Date:

07/25/2014

XFN PowerPac

Excelsys adds a powerPac model to its popular XF series of high reliability, ruggedized COTS modular power supplies

Excelsys Technologies, specialists in high efficiency user configurable power supplies, announce the availability of their latest powerPac model in its popular XF series of high reliability, ruggedized COTS modular power supplies. The new model, the XFN, is designed to deliver 1000W at –40°C thus complimenting th

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Date:

07/24/2014

Alix Paultre, Editorial Director, PSD

On missing planes and black boxes

Alix Paultre, Editorial Director, PSD

In a previous column we explored the issue of black boxes and commercial aircraft accountability (“Should we put bigger batteries in airplane black boxes?”*) through the lens of the Malaysia Airline Flight 370 tragedy. The terrible initial impact of the irreplaceable loss of life was exacerbated by the physical lo

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Date:

07/23/2014

Firefly Space Systems

Firefly Space Systems unveils Alpha launch vehicle design with aerospike engine

By David Szondy, Gizmag

The signs of a healthy industry isn't just growth or innovation, but a tendency to reach out and fill niche markets. A case in point is the small satellite launch company Firefly Space Systems, which recently unveiled its planned Alpha launcher. Aimed at the small satellite launch market, it's designed to launch sate

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Date:

07/14/2014

Zero-crossover-distortion amplifiers improve linearity of DAC Systems

Vicky Wong, Analog Devices

Digital-to-analog converters are widely used in many different applications and an amplifier often accompanies them to signal-condition the output. The amplifier functions to increase output current drive, to convert differential to single ended output, to isolate the downstream signal path, or to provide a co

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Date:

07/08/2014