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posted in April 2005
Self-powered chips - The work of fiction
Design How-To  
4/28/2005   Post a comment
Emerging portable micro-power applications like sensors, and implantable electronics continue to push technology to handle small, long lasting, low-cost, and fully integrated solutions. However, there are limitations that must be overcome. Here's what one graduate program is doing to meet these demands.
Eighth-brick claims best thermal performance
Product News  
4/28/2005   Post a comment
Power-One's 30-amp SQE series of eighth-brick converters emphasizes its superior thermal performance: Better, says the company, than traditional 30-amp quarter-bricks, which the new converters are designed to replace. The SQE's 1.8-volt output model, for example, delivers 29 amps at up to +70°C with only 200 lfm cooling, as compared to its full-rated output of 30 amps for 300 lfm cooling. Operating efficiency is as high as 91 percent at full load (3.3-volt model). No heatsink is required.
Neah Power Systems announces a a micro fuel cell technical milestone
News & Analysis  
4/28/2005   Post a comment
A fully integrated, multi-cell stack, functioning as the core engine of the fuel cell, was recently demonstrated at the Neah Power's laboratory. The results support the potential of the company's silicon-based, patented architecture.
Increasing military needs for portable power
News & Analysis  
4/27/2005   Post a comment
Jane's Information Group, an independent provider of intelligence and analysis on national and international defense, conducted a study that examines the increasing challenges faced by the U.S. Military to keep up with personal power demands of modern soldiers.
1U switchers optimize telecom fit
Product News  
4/27/2005   Post a comment
Taiyo Yuden bills its AAD-130SD, the latest addition to the company's line of ultracompact switching supplies, as one of the industry's smallest for its high-current capabilities in datacom and telecom. The family delivers 130 watts nominal (144 watts maximum for 15 CFM cooling) in sixteen models. Measuring approximately 5-by-3.14-by-1.25 inches and thus suited to 1U-high applications, the AAD-130SD is offered in single- and dual-output versions.
How to measure temperature in integrated systems
Design How-To  
4/25/2005   Post a comment
As processor speeds increase and draw more power, thermal management becomes an increasingly important issue. Here's how to reduce or eliminate the primary sources of error in temperature measurement so you can increase power savings efficiency of the thermal management systems.
Compact VRM serves Opteron processors
Product News  
4/25/2005   Post a comment
Artesyn Technologies' VRM64-80-12-U plug-in processor power module, a fast, high-current point-of-load converter, delivers up to 80 amps at 0.8 to 1.55 volts for AMD's 64-bit Opteron server processors.
Power block simplifies synchronous buck designs
Product News  
4/23/2005   Post a comment
International Rectifier's iP1203, the latest addition to the company's iPOWIR family, is a synchronous buck converter building block that achieves over 90 percent efficiency at full load. The iP1203, with relatively few external components, can deliver 15 amps at 0.8 to 8 volts from a 5.5 to 13.2-volt input to simplify DC/DC point-of-load (POL) converters that power network processor units and ASICs.
New Energy storage options and how they stack up
Design How-To  
4/22/2005   Post a comment
For engineers energy storage has always been the Achilles heel of their designs. Today's options include advanced battery technologies, fuel cells, solar cells and double layer capacitors. Here's a closer look.
Low thermal resistance technology enhances heat dissipation for high-power LDMOS RF transistor
Product News  
4/21/2005   Post a comment
Freescale introduces a low thermal resistance technology that enhances heat dissipation, improves transistor reliability and reduces cooling costs
Quarter-brick bus delivers 400 watts
Product News  
4/21/2005   Post a comment
Tyco Electronics Power Systems' QBK033, the latest addition to the company's QBK series, is among the industry's first 400-watt quarter-brick bus converters. The 12-volt output, 33-amp converter is suited to intermediate bus architectures in enterprise equipment, data processing equipment, and server and storage applications.
AC/DCs key on low-profile high power
Product News  
4/20/2005   Post a comment
Advanced Power Solutions' new family of industrial power supplies tout 500- to 800-watt capability in a small package for industrial bulk power, distributed-power and battery-charging applications requiring from 3.3 to 48 volts (12-48 volts in the 800-watt models).
DIN supplies measure up to instrumentation apps
Product News  
4/20/2005   Post a comment
Lambda's DPP series of DIN rail-mount power supplies provide a low-power source for light industrial tasks such as chemical processing, automotive, and instrumentation applications. With the emphasis on economy, the supplies, in rugged plastic cases, are available in eight models and three package sizes, delivering 15 to 100 watts at 5, 12, 15, 24, or 48 volts.
UPS smooths operation of industrial automation, process control apps
Product News  
4/19/2005   Post a comment
American Power Conversion and Rockwell Automation have a new UPS for industrial automation, manufacturing and process control applications.
CCFL inverter sheds light on the larger displays
Product News  
4/18/2005   Post a comment
Suited to the larger (19-24 inch) liquid crystal displays (LCDs) such as required in medical and industrial applications, Endicott Research's DmF6 Series of (DC/AC) inverters offers system integrators a high-power module in a compact package for powering the cold-cathode fluorescent lamps (CCFLs; in this case, up to six) used for backlighting. The series, measuring 9.52-by-2.83 inches and about 0.36 inches high, delivers up to 60 watts to meet the specifications of all leading 6-CCFL LCD panels.
120-amp half-bricks tout maximum usable power
Product News  
4/15/2005   Post a comment
Focusing on maximum usable power for next-generation systems, Cherokee International's Polaris 2 half-brick DC/DC converter family boasts 20 percent more output than competing (half-brick) modules.
PoE midspan jacks up the power
Product News  
4/13/2005   Post a comment
PowerDsine's 8001 product, a single-port power-over-Ethernet (PoE) midspan module for emerging high-power applications, delivers up to 39 watts for Ethernet-connected devices such as "pan tilt zoom" (PTZ) network cameras, color touch-screen voice-over-IP (VoIP) phones, and multi-channel wireless LAN access points (WLAN APs).
EE Times Japan to launch in July
News & Analysis  
4/13/2005   Post a comment
Targeting one of the largest electronics markets in the world, EE Times' new sister magazine, EE Times Japan, will begin publishing in July.
What's this about all the noise?
Power DesignLine Blog  
4/13/2005   Post a comment
Noise has always been a component of switched mode power supplies and as with most designs there are trade-offs you have to consider for you SMPS design. Paul Greenland, Marketing Director of National Semiconductor gives you a shopping list of items to look out for when designing with switchers, so you can minimize your trade off gotchas.
Brennstoffzellen/Akku-Kombo für Notebooks
News & Analysis  
4/12/2005   Post a comment
Sanyo Electric und IBM Japan wollen künftig bei der Entwicklung von Methan-Brennstoffzellen zusammenarbeiten. Das so genannte DMFC-System (Direct Methanol Fuel Cell) soll künftig in IBMs ThinkPad-Notebooks stecken.
UPS trio extends VoIP availability
Product News  
4/12/2005   Post a comment
Tripp Lite's new suite of 5-kVA uninterruptible power supply (UPS) systems for high-end server and networking hardware include the company's SmartPro line-interactive model (SMART5000XFMRXL) and two SmartOnline true on-line models (SU5000RT3U and SU5000RT3UHV). They're particularly suited to supporting voice-over-IP (VoIP) applications, where critical backup is often required for hours at a time.
EnerSys wins Navy contract for submarine batteries
News & Analysis  
4/11/2005   Post a comment
EnerSys has been awarded a $4.6 million contract by the U.S. Navy to continue development of advanced submarine batteries based on the company's thin plate pure lead (TPPL) technology.
Ultrakompakter Spannungsregler bis 1,3 MHz
News & Analysis  
4/11/2005   Post a comment
Sipex erweitert mit dem SP7653 seine PowerBlox-Serie an winzigen Spannungsregler-ICs. Von allen Bausteinen dieser Familie ist das jüngste Mitglied für die höchste Schaltfrequenz ausgelegt und spart - dank eines wesentlich kleineren Induktors - gegenüber seinem 'nächsten Verwandten' 60 bis 70 Prozent Platz auf der Platine.
IBM, Sanyo team on fuel cells for notebooks
News & Analysis  
4/11/2005   Post a comment
Sanyo Electric Co., Ltd. and IBM Japan will collaborate to develop a micro direct methanol fuel cell system for IBM's ThinkPad notebooks.
High-density AC/DCs answer telecom
Product News  
4/8/2005   Post a comment
Magnetek's MM5 Series of AC/DC supplies, a line of modular multi-output power systems for compact and customized telecom, computer, and industrial applications, delivers 900 watts (universal AC input) or 1200 watts (for a 180-264 VAC input). Boasting high current-density (8.7 W/in3), the five-slot supply, measuring 2.5-by-5-by-11 inches, delivers up to 60 amps of output current per slot. That's the highest output current capacity from a single slot of any modular power supply of equiv
Front-ends graduate to 650, 850 watts
Product News  
4/7/2005   Post a comment
Emerson Network Power has expanded its series of Astec DS front-end power supplies for high-density distributed bulk power with a 650-watt unit, its DS650-3. The supply, delivering up to 52 amps at 12 VDC and 3.3 VDC (standby output) at up to 6 amps from a universal AC input, incorporates full RoHS compliance and meets industry requirements for units free of tantalum capacitors. Its 1U-by-2U form factor (1.57-by-3.20-by-11 inches) enables flexible configuration to maximize the use of rack space.
Power Concerns for large computational devices: FPGAs and DSPs
News & Analysis  
4/6/2005   Post a comment
FPGAs and DSPs continue to push the limit of computational performance and speed. To fully exploit their true potential within a system, they must be properly powered. Engineers from Texas Instruments and Avnet engage in a Webcast discussion about the power management issues.
Expanded Power Management Support in China
Product News  
4/6/2005   Post a comment
AnalogicTech opens offices in Beijing and Shenzhen providing technical expertise and support for portable systems designers and OEMs.
Precision regulation and programmable power management enables popular consumer electronics
Product News  
4/5/2005   Post a comment
Summit Microelectronics announces two new programmable power manager ICs that enable system designers to digitally program multiple output power supplies and associated power management functions with a few clicks of a mouse.
Linear charger focuses on single-cell Li-ion, Li-polymer batteries
Product News  
4/5/2005   Post a comment
Intersil says its single-cell battery charges is suited for mini-disk players, Bluetooth headsets, MP3 players and other ultra-portables that have small capacity batteries.
Challenges in Intelligent Thermal Control for Notebooks
Design How-To  
4/5/2005   Post a comment
Notebook PCs designs must focus on active and passive measures to improve battery life and reduce heat. However, heat removal is a primary issue to any design success. Here are the important points for a successful design.
Custom battery packs tout new standard for safety
Product News  
4/4/2005   Post a comment
Drawing on advanced battery technology and specialized manufacturing processes, custom supplier Micro Power Electronics' new SecuraPack system checks the quality of battery inventory and battery pack construction at every step in the manufacturing process in order to deliver a defect-free lithium battery system to the OEM supplier. SecuraPack is designed to virtually eliminate in-the-field risk of unwanted chemical reactions and other electrical and mechanical malfunctions for both primary and r
Radiation-hardened solid state relays replace electro-mechanical relays for power bus switching
News & Analysis  
4/4/2005   Post a comment
Hermetically sealed SSRs from International Rectifier are radiation-hardened all-electronic devices designed to improve reliability by replacing electro-mechanical relays in power bus switching, heater control circuits, battery charging and other hi-rel applications.
PMBus, MCUs and You
Power DesignLine Blog  
4/4/2005   Post a comment
"Make no mistake about it," says Don Alfano of Silicon Labs, PMBus will forever change the way system power management is implemented, and your next design won't be competitive if it isn't PMBus enabled.
Line-interactive UPS adds USB connectivity
Product News  
4/2/2005   Post a comment
Extending the flexibility of its higher-power line-interactive uninteruptible power supplies (UPSes) for small and medium business applications, Hewlett Packard has equipped its HP T750 with both universal serial bus (USB) and serial connectivity for multiple configuration options.
Murata joins POLA alliance for power converters
News & Analysis  
4/1/2005   Post a comment
Murata Manufacturing Co. has joined the Point of Load Alliance and announced it would team with Texas Instruments Inc. to expand a global effort to promote pin-compatible, non-isolated, point of load plug-in power modules and provide a second source based on leading semiconductor technology.
Dual PWM dials into telecom, consumer apps
Product News  
4/1/2005   Post a comment
Intersil Corporation's ISL6440 is a dual PWM controller IC optimized for converting wall adapter, battery or network intermediate-bus DC input supplies into the system supply voltages required for a wide variety of datacom, telecom, and consumer products.
Une batterie ion-lithium rechargeable en une minute
News & Analysis  
4/1/2005   Post a comment
Toshiba Corp. annonce avoir développé une batterie ion-lithium dotée du temps de recharge court des condensateurs et de la capacité énergétique des batteries ion-lithium conventionnelles.
15-watt wall supply plugs in anywhere
Product News  
4/1/2005   Post a comment
Phihong USA's PSA15R is a 15-watt AC/DC wall supply with interchangeable plugs that help to minimize OEM inventory and development costs. Plugs are available for the United States, Europe, United Kingdom, China, Argentina, and Australia.


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