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Communication for first responders

December 15, 2014 12:46 pm | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

One of the well-acknowledged lessons from the aftermath of the September 11, 2001 attacks was that federal, state, and local authorities had failed to prepare properly to support first responders with logistics, inter-agency coordination, and ...

Solar power is rising

November 6, 2014 8:49 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

Many perspectives on solar generation undervalue or devalue the technology because utilities can...

Taking power with you

October 6, 2014 10:39 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

If one allows for it (or is simply lucky), travel can be a great opportunity for serendipitous...

Eye-catching thermal stability

September 10, 2014 10:20 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

The petroleum-mining sector has developed drilling technologies and methods that have greatly...

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Cell power

August 7, 2014 12:16 pm | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

At the advent of the Integrated-Circuit Age, portable electric-powered devices were few. Correspondingly, less than a handful of battery chemistries and form factors served most applications. Truck and auto engines depended on lead-acid batteries....

August 2014: Motion Control

August 6, 2014 2:56 pm | Digital Editions | Comments

In this day and age, anywhere you have a large crowd of people, you will have a large crowd of people using their phones. Technologically, this is a challenge when it comes to designing wireless networks capable of handling the load. In the August issue, we explore the problems and solutions for today's wireless companies and also discuss how motion control is changing the engineering landscape.

Any way the wind blows....

July 21, 2014 9:14 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

When I hear or read the phrase wind power, I immediately imagine tall-towered machines with tri-blade impellers tracing out huge arcing sweeps against partly cloudy skies. Your imagery may vary. Globally, wind generation capacity climbed to 318 GW in 2013 and has increased, year-over-year, an average of 37 MW since 2008....

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Com exCu: Industrial wireless

June 12, 2014 3:46 pm | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

Like general-purpose computational resources in commercial enterprises, factory automation systems have evolved from highly centralized structures with fixed peripheral connections to flexible models with distributed intelligence and networked I/O nodes. In the factory environment, networking and distributed intelligence increased resource availability....

Solar micro inverter design with ease using MCUs

May 29, 2014 12:58 pm | by Manish Bhardwaj, systems application engineer, Texas Instruments | Texas Instruments | Articles | Comments

Solar micro inverters are an emerging segment of the solar power industry. Rather than linking all solar panels in a solar installation through a central inverter, solar micro inverter systems instead place smaller, or “micro,” inverters in line with each individual solar panel....

Light UAVs serve both military and civilian missions

May 22, 2014 9:10 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

Modern weaponized unmanned aerial vehicles (UAVs) made headlines in the United States after the first remotely executed air-to-ground missile strike in Afghanistan’s Paktia province in February 2002. Seemingly more mundane, and thus, less covered by the popular press, are the many observational and communication applications....

Auto elocution: Vehicle-to-vehicle communication mitigates driving hazards

April 18, 2014 11:55 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

It’s not often that in-vehicle technologies take a sudden step. The automotive industry is, historically, quite conservative. However, in February, the US Department of Transportation’s (DOT) National Highway Traffic Safety Administration, (NHTSA) announced its vehicle-to-vehicle (V2V) communication initiative....

March 2014: Counterfeiting

March 13, 2014 4:23 pm | by Kasey Panetta, Managing Editor | Digital Editions | Comments

Counterfeit components cost the electronics industry billions of dollars each year. They also create dangerous situations and increase the risk of product failure. In this March issue of ECN, we identify the key battlegrounds in the fight against fake components.• Seeing through the lies explores the idea of using x-ray techniques as a way of identifying counterfeit components, walking readers through the most common indicators of a counterfeit. • Invisible bar codes offers up a solution to counterfeit components in the form of a covert micro-bar code that are virtually indestructible and invisible to the naked eye. • Counterfeit mitigation looks at a report by the Semiconductor Industry Association detailing the ideal defensive maneuvers against counterfeit components.

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Currently sensible

March 10, 2014 9:47 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

Sensing physical phenomena and preserving the fidelity of the resulting, often-tiny, sensor signals is a craft of its own within the broader discipline of analog circuit design. One of the most common and, counter intuitively perhaps, more challenging sensing tasks is that of measuring electric current.

UT part of $140 million White House advanced manufacturing initiative

February 28, 2014 1:54 pm | by EurekAlert! | News | Comments

The University of Tennessee, Knoxville, will be part of a national effort, announced today by President Barack Obama, which could lead to more fuel-efficient cars and decreased costs for ships and aircraft. Suresh Babu and a team of faculty will help lead UT's research effort in the $140 million Detroit-based institute....

The microcontroller as metaobject

February 13, 2014 6:28 am | by Joshua Israelsohn, Director, JAS Technical Media | Articles | Comments

Pretty much everyone in our industry is familiar with the long evolution of microcontrollers. So familiar that it’s easy to miss changes in our industry and society, both positive and negative, that accompanied that evolution just as we tend not to see daily changes in our own aging faces.

Which way WiFi?

January 20, 2014 3:52 pm | by Joshua Israelsohn, Technical Contributor | Articles | Comments

WiFi users in densely populated urban locales experience signal interference from nearby unassociated WiFi networks. Additionally, significant growth in the number WiFi-enabled mobile devices has added to user dependency on WiFi channels and to the data traffic those channels carry.

The smart-grid evolution

December 17, 2013 3:54 pm | by Joshua Israelsohn, Technical Contributor | Articles | Comments

When the vision of a smart grid first appeared over a decade ago, it was revolutionary and broadly recognized as being so. Yet even an informal assessment of the facility and technology development necessary to realize that vision made it clear that smart grids would require a lengthy evolution.

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Everything you need to know about picking the right circuit protection

September 11, 2013 3:33 pm | by M. Simon, Technical Contributor | Articles | Comments

When it comes to circuit protection, the first line of resistance is resistance. Resistance limits current flow and resistance, in conjunction with capacitance, slows the rate of increase of voltage, giving other protection measures in the circuit time to act. But, resistance has its drawbacks. If the current through the resistance is significant, it wastes power....

Battery harvesting versus energy harvesting

August 6, 2013 3:06 pm | by M. Simon, Technical Contributor | Articles | Comments

Should you use primary batteries or energy harvesting for your low power isolated from the grid application? Are primary batteries better or worse than energy harvesting? Can you use one or the other or do you need both? Neither? It is an interesting question depending on the application, the power required, and the costs involved.

The truth about test and measurement

July 16, 2013 2:41 pm | by M. Simon, Technical Contributor | Articles | Comments

Test and measurement starts with standards. You have to have standards for mass, distance, charge, and time (plus a few others) so all standards refer back to those fundamental unit standards. But you don't measure volts in units of amps, kilograms, meters, and seconds, that requires something more convenient (i.e. measuring volts in volts).

Smart Grid: The future of energy

June 12, 2013 11:23 am | by M. Simon, Technical Contributor | Articles | Comments

The Smart Grid is coming. It is needed in order to raise or lower prices for consumers depending on the time of day. It is needed to control consumer loads to better integrate intermittent alternative energy into the grid (industrial loads are already demand controlled by the grid operator depending on the type of service contract they have).

Resolve signal integrity issues in cloud computing platforms

May 29, 2013 4:10 pm | by Bill Weir, Pericom, www.pericom.com | Articles | Comments

While the cloud promises to reduce enterprise network infrastructure and operating costs, the remote execution of applications makes factors such as latency, performance, and reliability critical considerations in the design and deployment of cloud computing platforms. A key factor determining server performance, cloud or not, is maintaining a bit error rate (BER) on the order of 1.E-12 for the overall system.

Design electronics for cold environments

December 17, 2012 4:14 pm | by Jon Titus, Technical Contributor | Articles | Comments

Engineers at Agilent Technologies found a need for a digital multimeter (DMM) technicians and electricians could use in cold environments. "I went to college in Canada where temperatures often got down to below -20°C," said Boon Juan Tan, R&D manager in Agilent's Basic Instruments Division.

MCU tools help estimate and minimize power use

December 12, 2012 9:58 am | by Jon Titus, Technical Contributor | Silicon Laboratories Inc. | Articles | Comments

Josh Norem, an application engineer at Silicon Laboratories, gave me a demonstration of the company's Power Estimator tool available within the larger, free AppBuilder software. The Power Estimator tool now covers the SIM3L1XX Device, although Silicon Labs plans to add sleep-mode power conditions and other MCUs soon.

Kits for Kids

October 4, 2012 3:46 pm | by Jon Titus, Technical Contributor | Articles | Comments

Electronics, computer, and science kits can help kindle technical interests in kids of all ages. Each year the holidays seem to arrive sooner than expected and parents of young people interested in science and technology search for gift ideas. This column provides some suggestions. Some projects require adult help or supervision.

Audio-signal processing without code headaches

September 18, 2012 11:18 am | by Jon Titus, Technical Contributor | Articles | Comments

Graphical approaches to processing audio information lets designers concentrate on how their products sound rather than on DSP and programming chores. It seems few people lack an audio device, which can include an MP3 player and small sound bar up to a custom HiFi sound system in a home theatre.

Careful designers get the most from brushless DC motors

August 20, 2012 10:10 am | by Jon Titus, Technical Contributor | Articles | Comments

A brushed-DC motor comprises external permanent magnets and electromagnets wound on a rotating core. Brushes manufactured from graphite and other materials switch, or commutate, electricity to the coils as they rotate to sustain motion. A brushless-DC (BLDC) motor turns this construction inside out and places

Near-field communications

July 18, 2012 9:29 am | by Jon Titus, Technical Contributor | Articles | Comments

Near-field communications, which arose from earlier RFID applications, have gained in popularity as manufacturers added NFC capabilities to smart-phone and tablet-computer and as merchants have installed NFC payment devices. So instead of carrying a wallet full of credit and debit cards, consumers can use their smart phones as a mobile-payment "account"...

Design West update

April 11, 2012 10:53 am | by Jon Titus, Senior Technical Editor | Articles | Comments

Design West remained true to its embedded-systems roots and companies offered a cornucopia of new products for engineers. This year, the Embedded Systems Conference occurred as part of the larger Design West conference and exhibition, but clearly the emphasis remained on embedded systems...

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