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High-voltage Bipolar DACs Feature Very Low Drift

September 8, 2009 8:19 am | Product Releases | Comments

Texas Instruments introduced a four-channel, high-voltage, bipolar digital-to-analog converter (DAC) for ATE and medical equipment design. The DAC8734 features drift characteristics of 2 ppm over 500 hours; 3 ppm over 1000 hours, and it comes in a 6 mm x 6 mm QFN-40 or 7 mm x 7 mm TQFP-48 package. The device is capable of


Precision Power Control in Electro-Optics

September 8, 2009 7:17 am | by Mary Johnson, Wavelength Electronics | Articles | Comments

As new laser devices become available, their complexity is met with increasingly sophisticated electronics that allow continuous refinement of precision.  As optical systems mature, new processes and procedures are made possible.  These include: lasers in medical diagnostic and treatment equipment (e.g. Optical Coherence Tomography (OCT)), increased sensitivity for environmental monitoring equipment


Battery and Charge Management: Choices and Tradeoffs

September 8, 2009 6:30 am | by Masoud Beheshti, Director, Product Line Manager, Texas Instruments | Articles | Comments

Designers of portable electronic devices have a variety of choices on types of chemistries, charger topologies and charge management solutions. Selecting the most suitable solution should be a simple task, but in most cases, it is a more complicated process. The designer needs to reach an optimal balance between performance, cost, form factor and other key requirements.


Supercapacitors Replace Batteries with Help of 3mm × 3mm Charger

September 8, 2009 5:51 am | by Jim Drew, Sr. Applications Engineer, Linear Technology | Articles | Comments

Supercapacitors are finding their way into an increasing number of applications for short-term energy storage. One such application is a power ride-through circuit, in which a backup energy source cuts in and powers the load when main power supply fails for a short time. This type of application has been dominated by batteries in the past


Choosing the right IGBT Trade-Offs to maximize Motor Drive performance

September 8, 2009 5:29 am | by Vijay Bolloju, Jun Yang , & Elk Kabaker, IGBT Applications Engineering group, International Rectifier | Articles | Comments

Recent advances in IGBT technology have given motor drive designers more options to consider for system development.  Different specification conventions of various vendors complicate the design process further.  Conventionally, system efficiency has been equated directly with VCEON.  This metric is important for calculating the conduction losses of an IGBT but leaves out switching losses completely.


iCub the robot helps scientists understand humans

September 8, 2009 5:10 am | by Reuters | News | Comments

Robots that can make their own decisions have so far been confined to science fiction movies, but a child-sized figure with big eyes and a white face is trying hard to turn fiction into reality. Its name is iCub and scientists are hoping it will learn how to adapt its behavior to changing circumstances, offering new insights into the development of human consciousness.


High-Side Driver IC Handles Harsh Automotive Apps

September 8, 2009 4:59 am | International Rectifier | Product Releases | Comments

Intended for automotive gate drive applications such as injection and solenoid driver management, the AUIRS2016S high-voltage power MOSFET high-side driver from International Rectifier provides negative voltage spike immunity against catastrophic events during high-current switching and short circuit conditions. The device’s output driver features a 250-mA high-pulse current buffer stage.

Congress May Change Web Ad Privacy

September 8, 2009 4:20 am | by JOELLE TESSLER | News | Comments

Rep. Rick Boucher, D-Va., chairman of the House Energy and Commerce Subcommittee on Communications, Technology and the Internet, is drafting a bill that would impose broad new rules on Web sites and advertisers. His goal: to ensure that consumers know what information is being collected about them on the Web and how it is being used, and to give them control over that information.


Google Tells EU Online Books Democratize Web

September 8, 2009 4:05 am | by John O'Donnell, Foo Yun Chee, Dale Hudson, and Will Waterman | News | Comments

Google, the Internet search group, defended its scanning and publishing of millions of books online on Monday by saying the project was making finding information on the Web more democratic.


Evidence Found for Magnetic Monopoles

September 4, 2009 9:12 am | by Geoff Brumfiel | News | Comments

One of those facts of life that physicists live with is that every magnet ever made has a north and a south pole. When researchers try to split the two, they simply get another magnet with poles of its own.

Constant Current Regulation delivers HB-LED advances

September 4, 2009 8:23 am | by Tim Kaske & Paul Decloedt, On Semiconductor | Articles | Comments

In recent years significant advances in high-brightness LEDs (HB-LEDs) have given designers the opportunity to replace conventional incandescent, fluorescent and halogen technologies with more reliable and energy-efficient LED-based alternatives. As a result, solid-state lighting has seen considerable uptake in automotive, digital signage, and architectural applications, as well as the illumination of our city streets.


Internet Addiction Center Opens in US

September 4, 2009 7:17 am | News | Comments

Ben Alexander spent nearly every waking minute playing the video game "World of Warcraft." As a result, he flunked out of the University of Iowa. Alexander, 19, needed help to break an addiction he calls as destructive as alcohol or drugs. He found it in this suburb of high-tech Seattle, where what claims to be the first residential treatment center for Internet addiction in the United States just opened its doors.


Executive who led Google's China Expansion Leaving

September 4, 2009 7:12 am | News | Comments

The executive who led Google Inc.'s expansion in China after being hired away from Microsoft Corp. following a high-profile court battle is leaving to start his own business, the U.S. search engine announced Friday. Kai-Fu Lee will step down as president of Google Greater China in mid-September, the company said. It said he would set up a new venture in Beijing but gave no other details.


Sports Car Runs on Garbage

September 4, 2009 5:34 am | by by Kristin Underwood | News | Comments

This sleek sports-car by Rinspeed gives a new name to alternative fuels. Designed to run off of fermented green waste, the Advantige R One, a Formula One-style car, is no wimp and offers a few upgraded features so the driver still feels tough while driving his/her vegetable-eating vehicle.

Industry Pressures FCC to Lowball Broadband Definition

September 4, 2009 5:10 am | by Mark Long | News | Comments

In response to the Federal Communications Commission's request last month for comments about a definition of the term "broadband," key industry players have advised the FCC to tread carefully. The National Cable and Telecommunications Association, for example, is cautioning against incorporating substantive requirements regarding speed, price or openness.


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