Electronics & Computers

An Introduction to PCM Heat Sinks

With the exception of thermal storage heat sinks, the term heat sink is a misnomer. Standard heat sinks for electronics cooling are actually heat exchangers, taking the heat from the electronics, and transferring it to a fluid, either air or coolant. Phase Change Material (PCM) heat sinks are the only heat sinks that actually act as a (temporary) sink for heat. They are emerging in the thermal management realm to solve thermal problems in systems where active solutions cannot be used. When there is no place to dissipate the heat generated by electric components, a PCM heat sink is capable of absorbing the generated waste heat [1] .

Posted in: Articles, Aerospace, Electronic Components, Electronics, Electronics & Computers, Thermal Management, Manufacturing & Prototyping, Materials
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New Products: February 2019 Aerospace & Defense Technology

Defense-Grade FPGAs

Xilinx, Inc. (San Jose, CA) announced availability of its Defense-grade XQ UltraScale+ portfolio of products, providing the benefits of its UltraScale+ architecture plus extended temperature and ruggedized packages to address the needs of the aerospace and defense industry. The new products encompass the XQ Zynq® UltraScale+ MPSoCs and RFSoCs, as well as XQ Ultra-Scale+ Kintex® and Virtex ® FPGAs.

Posted in: Products, Data Acquisition, Computers, 3 D Printing & Additive Manufacturing, Industrial Controls & Automation, Manufacturing & Prototyping, Composites, Materials, Joining & Assembly, Machinery, Mechanical Components, Automation, Computer-Aided Design (CAD), Software, Measuring Instruments, Test & Measurement
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Novel Characterization Methods for Anisotropic and Mixed-Conduction Materials

State-of-the-art electronic and optoelectronic devices require electronic materials with specialized properties that cannot be characterized with standard methods, or that must be characterized with extra precision. As a result of this research, the following new materials characterization methods have been developed:

Posted in: Briefs, Aerospace, Computers, Electronics, Electronics & Computers, Photonics
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Navy Launches Virtual Training Tech for Aircraft Carrier Flight Deck Crews

One of the most dangerous environments in the U.S. Navy is the deck of an aircraft carrier. Catapult systems that can remove limbs, furious engines, whipping propellers, and high winds create a hectic environment. The driving force behind all of these activities is helping a pilot land an aircraft on a short slab of pitching steel in the middle of the ocean. Although pilots are the stars of the show, they could not accomplish their missions without the support of flight deck crews, who are responsible for safely launching and recovering aircraft.

Posted in: INSIDER, News, Defense, Computers, Electronics, Electronics & Computers, Photonics, Simulation Software
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High-Speed Switched Serial Fabrics Improve System Design

Well into its third decade of widespread deployment, VME adopted the new VXS gigabit serial interface, clearly representing the most significant leap in backplane data transfer rates throughout its entire history. Because VXS delivered such a dramatic improvement in embedded system performance, the use of gigabit serial technology was extended to create VPX. The OpenVPX initiative followed shortly thereafter, as risk-averse government agencies mandated the need for industry-wide standards. The hallmark of any successful standard is that it continues to evolve with technology, and none offers a better example than VME’s evolution to VXS and VPX.

Posted in: White Papers, White Papers, Electronics & Computers
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High-Speed Real Time Recording Systems

In today’s world of high-speed A/D converters operating in the gigahertz range, real-time signal recording has become a challenging task that requires specialized hardware and intelligent application software. When designing a real-time recorder capable of streaming sustained data to disk at rates of up to 5 GB/sec and higher, the system developer has to consider the limitations presented by the recorder’s operating and file systems, the limitations of disk drive technology, the hardware interfaces, and the RAID controller technology.

Posted in: White Papers, White Papers, Electronics & Computers
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Putting FPGAs to Work in Software Radio Systems

FPGAs have become an increasingly important resource for software radio systems. Programmable logic technology now offers significant advantages for implementing software radio functions such as DDCs (Digital Downconverters). Over the past few years, the functions associated with DDCs have seen a shift from being delivered in ASICs (Application-Specific ICs) to operating as IP (Intellectual Property) in FPGAs.

Posted in: White Papers, White Papers, Electronics & Computers, Semiconductors & ICs
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Critical Techniques for High-Speed A/Ds In Real-Time Systems Handbook

To help define the meaning of “high-speed A/D” used in this handbook, we will be focusing primarily on A/D converters with sampling rates higher than 100 MHz. We will review sampling techniques, FPGA technology and we will present the latest Pentek high-speed A/D products and applications based on them.

Posted in: White Papers, White Papers, Electronics & Computers
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Software-Defined Radio Handbook

SDR (Software-Defined Radio) has revolutionized electronic systems for a variety of applications including communications, data acquisition and signal processing.This handbook shows how DDCs (Digital Downconverters) and DUCs (Digital Upconverters), the fundamental building blocks of SDR, can replace legacy analog receiver and transmitter designs while offering significant benefits in performance, density and cost.

Posted in: White Papers, White Papers, Electronics & Computers
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Putting VPX and Open VPX to Work

Before the advent of OpenVPX, designers of embedded systems took advantage of the extreme connectivity offered by VPX (VITA 46), but were faced with a virtually unlimited number of possible implementations. Specific choices for the control and data channel assignments for each slot, the backplane connectivity, and serial fabrics were often made somewhat arbitrarily to suit the particular needs of the current system. Although following the general framework of VITA 46, each system tended to be so unique, that the boards and backplanes designed for one system were seldom usable in other systems, even from the same vendor.

Posted in: White Papers, White Papers, Electronics & Computers
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