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Electric backpacks for soldiers

03.11.2012

The US Army plans to equip its fighters with backpacks that will generate electricity while moving. The Pentagon has signed a $2,4 million contract with Lightning Packs to develop technology that allows a conventional backpack to use up and down movement to generate electricity. The Suspended Load Backpack can generate up to 7,4W of energy while walking, enough to charge night vision goggles, a powerful LED flashlight, a laptop computer, a GPS navigator and other devices with similar power consumption.

The main difference between the generator backpack and its "brothers" is the presence of a frame, which consists of two parts. A backpack bag is attached to one part, and straps to the other, the frame also has springs and a generator. While walking, the backpack moves up and down relative to the part of the frame to which the straps are attached. This energy is used to generate electricity, in addition, the spring-loaded frame makes it easier to carry the load.

The Suspended Load Backpack is primarily intended for use by the military, but Lightning Packs believes that the generator backpack will become very popular in the commercial market and will be used by any population: from tourists to schoolchildren. At the same time, it will not only ease the load on the back, but will also be able to generate electricity for mobile devices.

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New ultra-fast DAC 25.10.2006

Maxim Integrated Products introduced the MAX 12 19692-bit D/A converter with a speed of 2,3 Gsample per second and the ability to directly synthesize a high-frequency wideband signal several times the Nyquist criterion, setting new industry standards for high-speed D/A converters.

The MAX19692 provides direct signal synthesis up to 1 GHz for input frequency ranges from DC to over 2 GHz. The converter provides excellent dynamic performance, including 68 dB spurious-free dynamic range (SFDR) at an output frequency of 1200 MHz (when operating in the third Nyquist zone). The SFDR value is 14 dB higher than competing devices operating at the same high frequency.

"Increasing its leadership in data processing technology, Maxim has developed a new high-speed DAC architecture that delivers advances in speed, dynamic range, and the ability to exceed the Nyquist criterion by many times the output frequency. In addition to these high performance, a significant reduction in power consumption has been achieved," stated Ted Tewkesbury ( Ted Tewksbury, Head of High-Speed ​​Signal Processing at Maxim.

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