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posted in February 2005
Programmable power control addressed at Embedded Systems Conference
News & Analysis  
2/28/2005   Post a comment
Summit Microelectronics announces that Tom DeLurio, applications engineering director, will present a paper titled, "Set-point Accuracy and Temperature Effects in Communications Equipment", at the Embedded Systems Conference
PoL converter packs big power into a small space
Product News  
2/28/2005   Post a comment
An ultra-integrated DC-to-DC converter for Point of Load (POL) applications from Enpirion offers 20W of output power, 6A of output current, and 92% peak efficiency power density of up to 700 Watts-per-cubic-inch, or 80 Watts-per-square inch.
mPhase, Rutgers University expand nanotechnology battery research
News & Analysis  
2/28/2005   Post a comment
mPhase Technologies Inc. said it will collaborate with Rutgers University to broaden the capabilities of its nanotechnology-based battery now under development.
System-on-chip calls attention to higher power density
Product News  
2/28/2005   Post a comment
Product Review—Enpirion's latest device is promoted as a step-improvement over the company's EN5330 introduced last May (see eeproductcenter.com, ID#21100422 and ID#21100071), which was the first claimed power system-on-a-chip with an on-board output inductor for its synchronous buck PWM converter.
Full-bricks serve high-rail distributed power
Product News  
2/25/2005   Post a comment
Lambda's PAF600F280 family of full-brick DC/DC converters delivers 600 watts for distributed high-voltage DC power architectures as well as custom off-line power supplies. Working from a nominal 300-volt (200 to 400 V) input, the converters are available in 12-, 24-, 28- and 48-volt output versions.
Electrochemical supercapacitors eliminate need for external balancing resistors
Product News  
2/25/2005   Post a comment
AVX says its Battery Energy Saving Technology Capacitor series of electrochemical supercapacitors, results in the highest voltages available in the industry for low ESR pulse supercapacitors.
200-W DC/DC withstands marine, MIL environments
Product News  
2/24/2005   Post a comment
Absopulse's RWY200, the most recent addition to the company's series of rugged DC/DC converters, provides up to 200 watts for railway, airborne, military, marine, off-shore and land-based industrial applications.
Medical-grade supplies keep a low profile
Product News  
2/24/2005   Post a comment
Advanced Power Solutions' new APS63MI family of 60-watt medical-grade (AC/DC) power supplies tout the best-in-class low-profile (0.92 inch) design in an industry standard 2-by-4 inch footprint. The low-profile spec represents a 20 percent advantage over most competitive products, according to the company.
Power Management for Linux
News & Analysis  
2/24/2005   Post a comment
The Dynamic Power Management project explores technologies to improve power conservation capabilities of platforms based on open source software. It focuses on techniques applicable to running systems, adjusting power parameters on-the-fly while ensuring realtime deadlines of running software are met.
Millennium Cell to show hydrogen-powered laptop at Intel forum
Product News  
2/23/2005   Post a comment
Millennium Cell Inc. announced Wednesday (Feb. 23) it would demonstrate a next generation hydrogen fuel cell system to power a notebook PC at the Intel Developer Forum in San Francisco next week.
Power Management ICs enable digital control of output power
Product News  
2/23/2005   Post a comment
Using Summit's programmable power management ICs, system designers can digitally program the entire multiple output power supply and associated power management functions with a few clicks of a mouse compared to the tedious iterative hardware design of conventional analog power solutions.
Frozen by the heat
Power DesignLine Blog  
2/23/2005   Post a comment
The great thing about my job is that I get to see a flood of information cross my desk that may seem disparate, but when you step back and look at the information as a whole you start to see the connections. Several approaches are being taken to either inch our way to a solution while others are being developed to completely change how we develop ever faster computing designs that don't get frozen by the heat.
AC/DCs fit industrial-telecom profile
Product News  
2/21/2005   Post a comment
Astrodyne's NextGen family of convection-cooled switching power supplies, in 90 models, deliver from 20 to up to 150 watts at 3.3 to 48 VDC from a universal AC input for low- to moderate-power telecom, industrial, and embedded systems applications. The 1U-compliant supplies, measuring as small as 3.1-by-2-by 1.1 inches (LWH) come in single-, dual-, triple- and quad-output versions.
Voltage Choice in a Distributed Power Architecture
Power DesignLine Blog  
2/18/2005   Post a comment
Telecom power supplies use a nominal -48 V distributed bus. However, the increasing number and complexity of loads has driven a system-level change known as the Intermediate Bus Architecture, which is fed to the Intermediate Bus Converter. Mr. Greenland tells us what's happening here and why there is talk of using an even lower voltage range.
Inside the Belly of the Beast: A Map for the Wary Bandgap Reference Designer when Confronting Process Variations
Design How-To  
2/18/2005   Post a comment
"Fast is fine, but accuracy is everything", may have been a dictum of the old west, but it's also true for design of integrated reference circuits. The researchers at Georgia Tech share their research on a bandgap reference circuit.
DC power system condenses FTTH installations
Product News  
2/16/2005   Post a comment
Valere Power's LP DC Power System, designed as a compact and cost-effective solution for powering fiber-to-the-home (FTTH) and business telecommunications service installations requiring battery back-up, delivers up to 7 amps at 54 volts. The system packs 1-, 4-, or 7-amp hot-swap/redundant rectifiers, power distribution architecture and the batteries into a 5U-high package with a footprint of just 8.6-by-6.43 inches— half the size of competing systems, according to the company.
Compact DC power system can have five load circuits
Product News  
2/15/2005   Post a comment
UNIPOWER Telecom introduces the Gravitas X100-12, an integrated DC power system consisting of one or two high power-density, hot-swap rectifier modules combined with a DC distribution section and a monitor and control section.
DC/DCs make the industrial grade
Product News  
2/15/2005   Post a comment
XPiQ's JTA family of single- and dual-output 10-20 watt DC/DC converters, touted as an updated design on industry-standard modules, is suited for economical, industrial-grade applications.
Single cell Lithium-Ion/Polymer linear battery charger supports all charging modes
Product News  
2/15/2005   Post a comment
A lithium-ion/polymer linear battery charger with an integrated pass device from AnalogicTech is designed for compact portable applications. It supports all charging modes and features an embedded microcontroller serial interface to communicate the state of the battery to the system.
Determine your total cost of ownership for real world power protection infrastructure
Design How-To  
2/14/2005   Post a comment
What are the key aspects to consider when making strategic plans for any power infrastructure involving uninterruptible power supplies and associated hardware. Find out with real-world scenarios to demonstrate the advantages and disadvantages of various configurations.
High-boost front-end facilitates a doubling of power density
Product News  
2/14/2005   Post a comment
Vicor Corporation's new High-Boost Harmonic Attenuation Module (VI-HAM) is a universal AC-input, PFC front-end that's optimized for the company's second-generation V375 series of DC/DC converters. A single High-Boost VI-HAM can be used with any combination of V375s (available in quarter-, half-, and full-brick packages) for up to 675 watts. The High-Boost VI-HAM is also compatible with the company's VI-26x and VI-J6x series DC/DC converters (one V375 module is the equivalent of three VI-26x/J6x
Miniature 1-W DC/DCs claim lowest cost
Product News  
2/12/2005   Post a comment
MicroPower Direct's dual-output LF100ED DC/DC converter family, with a footprint of just 0.6-by-0.44 inches, is designed to deliver 1 watt in tight installations at the lowest possible cost ($3.90 each in 100s).
Eighth-bricks meet RoHS spec
Product News  
2/11/2005   Post a comment
Lambda's PAE50 and PAE100 eighth-brick DC/DC converters are suited for datacom and telecom systems and systems using distributed power architectures that need to comply with the RoHS (Restriction of Hazardous Substances) directive.
Des efforts plus vifs déployés pour supprimer les points névralgiques du processeur
News & Analysis  
2/11/2005   Post a comment
Avec des microprocesseurs qui consomment actuellement des centaines de watts, les experts présents à la Conférence internationale sur les circuits état solide (ISSCC) ont identifié des procédés visant à modéliser et réduire la consommation d’énergie ou, le cas échéant, permettant de se débarrasser rapidement de la chaleur.
10-20 amp POLs extend high-density intermediate-bus apps
Product News  
2/11/2005   Post a comment
Three new NFA series point-of-load (POL) DC/DC converters from C&D Technology, an APEC 2005 Preview announcement, are designed for minimal size and footprint and maximum flexibility to meet the ever demanding requirements of high-density applications and intermediate-bus architectures. Offered in 10-, 16-, and 20-amp models, these converters boast efficiencies of up to 95 per cent.
Single-cell lithium ion charger eliminates the need for wall warts
Product News  
2/10/2005   Post a comment
Maxim introduces single-/dual-input linear battery chargers for single-cell lithium-ion (Li+) batteries. Now you don't need a wall charging unit for your PDA, cell-phone or MP3 player.
Military-grade AC/DC supply delivers 430 W
Product News  
2/10/2005   Post a comment
The 56SQ1 from North Atlantic Industries is a rugged universal-input, quad-output AC/DC supply (with a fifth standby output) that delivers up to 430 watts for VME-based systems. It's particularly suited to military and aerospace programs, including airborne, shipboard, ground mobile and C3I applications. The high-density, low-profile supply, in a 2-slots-wide design measuring approximately 9.2-by-6.8-by-1.6 inches high, fits in a 6U rack.
MOSFET or bipolar, which should you use?
Design How-To  
2/9/2005   Post a comment
MOSFET or bipolar, which should you use? Recent developments in bipolar transistors position the technology to rival or exceed MOSFET performance in many applications. From powermanagementdesignline.com, a Zetex engineer reviews the characteristics and benefits of each technology to extract the best system performance.
Schottky barrier rectifier targets power management, reverse-polarity protection applications
Product News  
2/9/2005   Post a comment
Philips Semiconductor introduces a planar Maximum Efficiency General Application (MEGA) Schottky barrier rectifier with an integrated guard ring for stress protection and is ideal for power management, rectification and reverse-polarity protection applications.
Powerware extends customizing software for UPS monitoring
Product News  
2/9/2005   Post a comment
Product Review—Eaton Corporation positions its Powerware CoreLogic product as one that allows system integrators to easily customize monitoring and control of power management functions to the nth degree in stand-alone as well as integrated UPS systems. In this context, it differs from software that oversees general monitoring and control, such as LanSafe. Indeed, it empowers the system integrator to design-in highly specific power protection almost effortlessly for, say, moni
3-in-1 controller delivers precision voltage regulation
Product News  
2/8/2005   Post a comment
The Intersil pulse width modulator provides two buck regulator outputs and a linear controller output for powering double data rate memory supplies for servers, motherboards, I/Os, FPGAs, and embedded processors, as well as, graphic cards and other system electronics.
EDGE Power amp incorporates battery voltage tracking
Product News  
2/8/2005   Post a comment
RF Micro Devices introduces two power amps that provide battery voltage tracking circuitry.
Half-bricks boost LAN/WANs
Product News  
2/8/2005   Post a comment
Wall Industries LV series of half-brick DC/DC converters are suited to intermediate and distributed bus architectures, telecom equipment, network (LANs/WANs) equipment and powering next generation low-voltage, high-current microprocessors and ICs. Running off a wide-range input (10-30 volts), the single-output converters deliver up to 150 watts at 3.3, 5, 12, 15, 24, 26 or 28 V, and up to 20 amps (3.3 and 5 volt models).
High-voltage quarter-bricks power RF amps
Product News  
2/8/2005   Post a comment
TDK Innoveta's iQN series of 200-watt quarter-bricks, part of the company's Supereta family, delivers 6 amps at 35 volts and 7 amps at 28 volts from a 36-75 V input to meet the high-voltage requirements of power amps used in wireless service as well as fan control boards.
Powering Communications in Harsh Environments
Design How-To  
2/7/2005   Post a comment
Power supplies used in harsh, remote environments bring with them many fundamental design issues that must be fully understood if long-term reliability is to be attained. For designers of communications equipment downtime is not an option. Here's how to get the most from your power supply design in harsh enviroments.
Portable Power Management: A Holistic Perspective
Design How-To  
2/7/2005   Post a comment
A virtual explosion of handheld productivity devices, many of which have wireless and multimedia capability, has heightened the awareness that a status-quo power management mentality must give way to an aggressive all-hands effort. An all-hands holistic approach to power management excludes no one. Here's what you need to know.
Non-isolated plug-in power modules are fifty percent smaller than predecessors
Product News  
2/4/2005   Post a comment
TI announces three new wide-input, non-isolated modules that are ifty percent smaller than their predecessors, can be used in a wide variety of applications that require input voltages from 7 V to 36 V.
Step-Down DC/DC Converter Includes Integrated Boost and Catch Diodes
Product News  
2/4/2005   Post a comment
LTC introduces a 40V step-down DC/DC converter with integrated boost and catch diodes in a ThinSOT package. It operates from input voltages of 4V to 40V, delivering up to 200mA of output current optimizing it for 2-cell Li-Ion, wall adapter or automotive power sources.
Floating gate analog voltage reference may have the industry's lowest power consumption
Product News  
2/4/2005   Post a comment
Intersil Corporation announces the newest addition to its high-precision voltage reference family, the ISL60007. It is a 2.50V voltage reference that features the industry's lowest power consumption combined with high accuracy, low temperature coefficient and long-term stability.
Fixed 3.3V and 5V regulated charge pump helps quiet the noise, extend battery life
Product News  
2/4/2005   Post a comment
LTC introduces a charge pump doubler in 2mmx2mm package and features a low-noise constant-frequency operation. One version generates a regulated boosted output voltage of 3.3V from a minimum input voltage of 1.8V, while another produces 5V output from a minimum 2.7V.
Adapters deliver up to 50 W for medical/ITE
Product News  
2/4/2005   Post a comment
Astrodyne's GTMD family of single-output desktop-style power adapters, in 23 models, deliver 8 to 50 watts at 3.3 to 48 volts for class I and II medical and ITE (information technology equipment) applications.
Military battery offers state-of-charge indicator
Product News  
2/3/2005   Post a comment
EaglePicher has released the new high-energy lithium sulfur dioxide (LiSO2) BA-5590 battery with a built-in state-of-charge indicator developed by POWERPRECISE Solutions.
Programmable Power Supply Device Optimizes Next-Gen Digital Systems
Product News  
2/3/2005   Post a comment
Summit Microelectronics introduces a digital power supply marginer that can work with either point-of-load DC-DC power modules or monolithic embedded DC-DC converters.
AC/DC delivers 150 watts in a 100-W package
Product News  
2/3/2005   Post a comment
With the accent on power density, Wall Industries' PSSBU150 series of universal input, single-output AC/DC open chassis power supplies provides up to 150 watts at 3 to 50 volts for CRT terminals, disc drive systems, microprocessor-based systems and portable devices. The family, measuring 3-by-5-by-1.32 inches and touted as providing 50 percent more power for a PC-card type supply with given industry standard footprint, weighs just 12 ounces and is suited to 1U applications.
Dear Joe Power Supply
Power DesignLine Blog  
2/3/2005   Post a comment
Don Alfano, Director of Applications Engineering at Silicon Labs tells a story from the point of view of - the power supply - and you get to see what pressures are placed on these almost invisible products, and what Joe Power Supply needs to keep up with technology changes.
Half-Bridge N-Channel MOSFET Driver ICs prevent shoot-through current
Product News  
2/3/2005   Post a comment
Vishay-Siliconix announces four new high-speed, half-bridge n-channel MOSFET driver ICs designed for use in high-frequency, high-current, single- and multiphase dc-to-dc switching power supplies.
55-watt AC/DC cites edge for 1U telecom
Product News  
2/3/2005   Post a comment
Power-One bills its BLP55 as a low cost AC/DC supply with superior thermal-management characteristics for networking, datacom, and industrial applications. These single-output units deliver 55 watts at 5, 12, or 24 volts for full-rated output over 0 to 70°C with 10 CFM cooling.
No more mess, no more tangled wires
Design How-To  
2/2/2005   Post a comment
Pacusma introduces its DCEverywhere to replace traditional power supply adapters with universal taps, power strips, in-wall outlets and portable units, and DCSimplify to eliminate the need for multiple cords.


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