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posted in May 2008
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A matter of light, Part 3---When to boost and buck-boost
Design How-To  
5/31/2008   2 comments
In this third installment, we investigate larger LED displays and the applications space for other converter topologies
How to safely supply and charge devices through the USB
Design How-To  
5/31/2008   Post a comment
Here's what to consider in designing over-voltage and over-current protection circuitry for your USB-powered system.
Optoelectronics to show good growth through 2013, says analyst
News & Analysis  
5/30/2008   Post a comment
The worldwide optoelectronics annual market is set to grow to $17.4 billion in 2008 from $15.9 billion in 2007, according to DataBeans Inc.
New LinkSwitch simplifies CV/CC charger designs
Product News  
5/29/2008   Post a comment
Newest generation touts an output accuracy of 5 percent over line and temperature variations, includes line-drop compensation circuitry, and guarantees very low no-load dissipation to easily meet Energy Star 2.0 standards for external power supplies.
Vincotech showcases multipurpose power modules
Product News  
5/29/2008   Post a comment
At the PCIM trade fair in Nuremberg, Vincotech introduced new products. The company which emerged from the former Tyco Electronics Power Systems through a buyout from investment company Gores Group introduced several power modules for solar, motor control and UPS applications.
ST enhances high-voltage converter line
Product News  
5/29/2008   Post a comment
ST's avalanche-rugged 800V MOSFET line includes integrated protection, start-up and power-saving features that boost reliability, economy and efficiency.
Wide-input dc/dc converters target battery systems in vehicles
Product News  
5/29/2008   Post a comment
Vicor Corp. has introduced the Maxi family of 28-V wide-input dc/dc converters for battery systems in vehicles.
Variable Speed Motor Control with Sensorless Functionality in Home Appliances
Design How-To  
5/28/2008   Post a comment
Regulatory standards enforce more energy-efficient solutions even in cost-sensitive market environments such as white goods. State-of-the-art DSPs can achieve the goal of energy-efficient motor controls without neglecting the aspect of cost-effectiveness.
Volkswagen, Sanyo cooperate on Lithium Ion batteries
News & Analysis  
5/28/2008   Post a comment
Volkswagen AG and Japanese electronics group Sanyo will jointly develop highly efficient lithium ion batteries for use in hybrid drive cars and, eventually, in all-electric cars.
Universal system manager IC offers battery-backup charge, no-loss calibration
Product News  
5/28/2008   Post a comment
Linear Technology's LTC4110 is a complete single-chip battery charge and discharge manager for Li-ion/polymer, NiMH, NiCd, and SLA batteries and super capacitors.
A model transistor
News & Analysis  
5/27/2008   Post a comment
Researchers working on the EU-funded Robuspic project say they have developed accurate behavioural models that will help semiconductor companies design more efficient power transistors.
How to use optional wireless power-save protocols to dramatically reduce power consumption
Design How-To  
5/27/2008   1 comment
This two-part series of articles provides an overview of today's power-saving methods, ranging from power-reduction protocols and system optimization to low-power circuit design and process technology.
Intermediate bus PWM controller increases energy efficiency
Product News  
5/27/2008   Post a comment
Texas Instruments has introduced a pulse-width modulated (PWM) power supply controller for intermediate bus architectures.
Gate drive optocoupler targets hybrid electric vehicles
Product News  
5/27/2008   Post a comment
Avago Technologies has introduced the ACPL-312T gate drive optocoupler, aimed at automotive hybrid electric vehicle applications.
PV manufacturing industry pools interests in organization
News & Analysis  
5/27/2008   Post a comment
Companies focusing on production technology for solar silicon ingots, wafers, solar cells and PV modules have joined their forces in launching the International Photovoltaic Equipment Association (IPVEA). The group intends to intensify cooperations and unlock synergies.
LED driver delivers high-intensity lighting for camera phones
Product News  
5/27/2008   1 comment
AnalogicTech is claiming the industry's first 2-A flash LED driver IC capable of delivering high-intensity WLED lighting for high-megapixel camera phones.
Power-over-Ethernet splitter delivers up to 45W
Product News  
5/27/2008   Post a comment
Phihong's Power-over-Ethernet splitter is intended for Wimax, multi-radio access points last-mile wireless and computer workstations.
Applied and others invest in SunEdison
Product News  
5/27/2008   Post a comment
SunEdison LLC, North America's largest solar energy services provider, has closed $131 million of private equity and $30 million of debt financing from various investors, including Applied Materials Inc.
A matter of light, Part 2--- Buck whenever possible
Design How-To  
5/27/2008   1 comment
Here's why a constant-current buck converter should be the first preference when it comes to switch-mode LED drivers.
Allegro : MOSFET pre-driver IC replaces belt-driven actuators
Design How-To  
5/27/2008   Post a comment
Designed around Allegro's latest generation of BCD semiconductor process technology, the A3941 automotive-grade full-bridge MOSFET pre-driver IC includes enhanced features which make it suitable for high-temperature automotive systems and industrial systems using a 24 V battery supply.
Infineon to sell stake amid merger rumors
News & Analysis  
5/26/2008   Post a comment
The rumors continue to fly at Infineon AG. Amid the departure of its top executive, Infineon is looking to sell a 40-to-50 percent stake in the company to KKR. KKR, in turn, would merge Infineon and NXP Semiconductors, according to reports.
A matter of light, Part 1---The ABC's of LEDs
Design How-To  
5/26/2008   1 comment
Here's the basics on LEDs and what you need to know about their drivers.
UPC Studio Software simplifies AC power testing
Product News  
5/24/2008   Post a comment
Test Manager feature saves time and money with user-definable test plans
Display conference highlights green technologies
Product News  
5/23/2008   Post a comment
Along with a number of display industry firsts at the Society for Information Display conference, manufacturers acknowledged the need to incorporate "green" technologies and production processes.
Dynamic Voltage Droops & Total Power Integrity
Design How-To  
5/23/2008   Post a comment
This article sheds light on key differences such as voltage droops and noise wave propagation resulting from on-chip load interaction with power network impedance and discusses how total power integrity may be rigorously inspected through rapid analyses and physics-based simulations.
MPU supervisor provides precision power monitoring
Product News  
5/22/2008   Post a comment
The MAX6394 +/-1% accurate microprocessor supervisor from Maxim Integrated Products delivers precision monitoring for demanding applications.
Applied forms new solar group
Product News  
5/22/2008   Post a comment
Expanding its efforts in an exploding market, Applied Materials Inc. has formed a new solar group.
USB battery charger sports buck boost, buck converters
Product News  
5/22/2008   Post a comment
Aimed at handheld applications, this efficient, multi-function power management device from Linear integrates a stand-alone Li-Ion/Polymer battery charger and two high efficiency synchronous regulators—one buck-boost and one buck.
Hex half-bridge driver ICs dedicated for high-temperature apps
Product News  
5/22/2008   Post a comment
Atmel Corp. is offering a pair of high-temperature hex half-bridge driver ICs that are manufactured using its high-voltage 0.8 um BCD-on-SOI technology (SMART-I.S.), enabling the use of much smaller, lower-cost QFN packages.
Bus converter delivers high-power density
Product News  
5/21/2008   Post a comment
The Brick Business Unit of Vicor Corp. has added the VI BRICK BCM bus converter to its new VI BRICK family that provides an advanced modular power platform for power solutions.
LED driver boards target industrial, medical LCDs
Product News  
5/21/2008   Post a comment
Endicott Research Group (ERG) has released two high-efficiency, low-profile Smart Force LED driver boards as standard products for a wide range of industrial and medical LCDs.
POL converters deliver up to 94% efficiency
Product News  
5/21/2008   Post a comment
Power-One has introduced the YEV series of 3-, 6-, 10-, and 20-amp point-of-load (POL) dc/dc converters that deliver up to 94% efficient power conversion in communications and server applications.
IR tailors MOSFETs for power supplies, electric motors
Product News  
5/21/2008   Post a comment
International Rectifier has introduced a family of 60 V and 75 V MOSFETs optimized for industrial battery applications such as E-bikes, scooters and utility carts.
Three-phase 600V IC boosts motor-drive reliability
Product News  
5/20/2008   Post a comment
These rugged 600V three-phase gate driver ICs for motor drive applications feature DC bus sensing and negative voltage spike immunity to protect systems from catastrophic evens seen during high-current switching and short-circuit conditions.
Analog Devices claims first digital isolators qualified for automotive systems
Product News  
5/20/2008   Post a comment
Analog Devices has developed a family of digital isolators, based on its iCoupler digital isolation technology, that meet the reliability and quality requirements of electric-hybrid vehicles.
ST advances IGBT switching performance
Product News  
5/20/2008   Post a comment
The new series of IGBTs from ST achieves higher efficiency and reduced size in energy-saving ballasts and converters.
Fairchild and Zilker partner to provide digital power
News & Analysis  
5/20/2008   Post a comment
Products will include point-of-load ICs and systems for server, networking, and graphics applications
International Rectifier : MOSFETs come in robust TO-247 package
Product News  
5/20/2008   Post a comment
International Rectifier has expanded its portfolio of 60-, 75- and 100-V MOSFETs for switch mode power supplies (SMPS), uninterruptible power supplies (UPS) and industrial applications such as power tools, forklifts and other high power dc drives.
PowerWise metrics help designers select the right ICs
News & Analysis  
5/20/2008   Post a comment
New design methodology sets sights on saving energy and extending battery life
National touts first emulated current-mode controller with ultra-wide operating range
Product News  
5/20/2008   Post a comment
LM5118 DC/DC controller operates reliably over 3-75 volts
OLED power driver enhances image quality for small displays
Product News  
5/19/2008   Post a comment
Texas Instruments has introduced an OLED power driver designed to enhance image quality for small form factor displays up to 2.5 inches.
Thermal management in digital and RF designs
Design How-To  
5/19/2008   Post a comment
Increased power density, higher wattage components, and the upward spiral in switching frequencies have become the primary drivers in the search for more efficient and cost effective thermal management. In this article, we shall address some of the industry issues and solutions related to thermal management in digital and RF designs.
DC/DC converter series extends to more than 2000 models
Product News  
5/19/2008   Post a comment
XP Power announced new additions to its I series of low power isolated DC/DC converters, which includes a range of industry-standard mounting options, including SIP, DIP and DIP24 with single and dual outputs, and now with either regulated or unregulated outputs.
Google in talks with Israeli solar company
News & Analysis  
5/19/2008   Post a comment
Internet search giant Google Inc. (Mountain View, Calif.) is in discussions with Israeli solar company Ormat about potential cooperation in enewable energy projects.
Vishay rolls out two high-brightness SMD LED series
Product News  
5/18/2008   Post a comment
Vishay has released two series of high-brightness yellow and red SMD LEDs that are housed in reverse gullwing packaging with 1.9-mm profile and employ AllnGaP technology to provide luminous intensity range from 71mcd to 285mcd with 75-mW power dissipation.
Switch-Mode Power Supplies --- SPICE Simulations and Practical Designs, Part II
Design How-To  
5/17/2008   Post a comment
In the concluding part of this excerpt on feedback/control loop design, from Chapter 3 of the book, we focus on stabilizing the loop by means of the "k factor" technique.
IBM claims major boost in solar cell efficiency
News & Analysis  
5/16/2008   Post a comment
IBM has managed to squeeze 230W of power on to a centimeter square of solar panel using concentrator photovoltaics. The energy was then converted to 70W of usable electric power, the best power efficiency yet achieved, the company claims.
Look for more UPS consolidation
News & Analysis  
5/16/2008   Post a comment
If Emerson were to acquire the Chloride Group, then the top three UPS suppliers would control well over 50 percent of the $7 billion global market, according to IMS Research.
Low ESR tantalum capacitors target portable electronics
Product News  
5/16/2008   Post a comment
Vishay Intertechnology has released the TR8 series of molded MicroTan tantalum chip capacitors that provide ultra-low ESR values in 0805 and 0603 case sizes.
Strong growth for thick-SOI substrates by 2012, says Yole
Product News  
5/16/2008   Post a comment
French research and strategy consulting company Yole Développement (Lyon, France) provides an analysis on thick silicon on insulator (SOI) substrates as this market is expected to move from $72 million in 2007 to $115 million in 2012.
Page 1 / 2   >   >>


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