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posted in January 2007
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Save power and real estate with a programmable reset controller with debounced input
Design How-To  
1/31/2007   Post a comment
The long time delay of the Hard Reset poses a design problem because delays into the tens of seconds call for very large value resistors and capacitors. The analog solution is both simple and low cost but it lacks flexibility and accuracy. A programmable reset timer becomes the obvious solution when considering long delay times or multiple timers. Here's an article that tells you the specifics about how to create this design.
Cherokee rectifies the front-end design
Product News  
1/31/2007   Post a comment
Power Review - Here's the skinny on Cherokee's evolving line of front-end rectifiers, with the CAR2500 a benchmark performer, says the company's Mike Wagner.
V-I chip facilitates direct 48-to-1 volt DC/DC conversion
Product News  
1/31/2007   Post a comment
Vicor's 320-watt PRM regulator, the P045F048T32AL, the newest member of the company's V - I Chip family, facilitates direct 48-to-1 volt DC/DC conversion at 91 percent efficiency.
National Semi extends popular Simple Switcher dc/dc IC family; enhances companion Webench tool with footprint vs. efficiency tradeoff
Product News  
1/30/2007   Post a comment
New switching regulators from National Semiconductor go to 75V, plus improved Webench design tool
Startup powers novel route for notebook batteries
News & Analysis  
1/30/2007   Post a comment
Startup Boston-Power Inc. debuted last week (Jan. 30) a lithium ion battery for notebook computers that promises a faster charge time and a lifespan three times that of existing batteries.
Battery said to last lifespan of notebook unveiled at DEMO 07
News & Analysis  
1/30/2007   Post a comment
Boston-Power introduces new lithium-ion battery technology platform engineered to deliver industry's fastest recharge time.
Boston-Power fuels expansion with $15.6 million in Series B financing
News & Analysis  
1/30/2007   Post a comment
Boston-Power announced an additional $15.6 million in Series B financing as the company debuts its next-generation, lithium-ion notebook computer battery solution.
Nujira powers ahead with $9.8 milion round B
News & Analysis  
1/30/2007   Post a comment
Power amplifier technology developer Nujira has closed a $9.8 million Series B funding round, bringing the total venture capital invested to nearly $18 million. The company, formed in 2002, also announced it has demonstrated its ultra-high efficiency RF Power Amplifier (PA) operation in collaboration with three simultaneous full-bandwidth WCDMA carriers.
Get control of buck regulator high step-down ratios
Design How-To  
1/30/2007   Post a comment
Feedback loops for buck type switching regulators are usually hard to compensate and typically require current mode control. Unfortunately, noise sensitivity is a problem. A recent development called Emulated Current Mode Control can improve the ability to operate with very high step down ratios while maintaining good noise immunity. Here's what you need to know.
PoE desktop supply delivers 60 watts
Product News  
1/30/2007   Post a comment
PowerGate LLC's Cincon TR60A power-over-Ethernet supply delivers 1.2 amps at 48 volts for wireless multi-radio access points with A, B and G standards and IP phones with streaming video displays.
Power conversion IC delivers performance, power efficiency in 4 mm x 4 mm package
Product News  
1/30/2007   Post a comment
Texas Instruments introduces a six-channel power management IC in 4mm x 4mm package that targets portable electronic designs.
Range guides detail line of nickel cadmium batteries for reserve power applications
Product News  
1/29/2007   Post a comment
EnerSys offers three new range guides for products in its Varta "R" series of nickel cadmium (NiCd) batteries. The guides detail the long duration, the medium duration and the short duration batteries.
Low-power solution leverages Si2-approved common power format
Product News  
1/29/2007   Post a comment
A common power format-enabled low-power solution from Cadence Design Systems increases productivity and reduces project risk by integrating low-power design, verification and implementation.
C&D's 19-inch powershelf supports three D1U supplies
Product News  
1/26/2007   Post a comment
C&D Technologies' S1U-3X powershelf, in two versions, accommodates up to three of the company's D1U AC/DC front-end power supplies in parallel.
5-watt USB adapter plugs into any power socket
Product News  
1/26/2007   Post a comment
Phihong's PSB05R 5-watt USB adapter includes four interchangeable clip adapter plugs suited to virtually any power outlet around the world.
Quarter-brick bus converter delivers 330 watts
Product News  
1/26/2007   Post a comment
FDK's FPQN48T9R632, in the company's new Sensei Series of isolated DC/DC bus converters for intermediate-bus and distributed power architectures, delivers 330 watts.
Modular 400-W switcher can be configured and delivered in 24 hours
Product News  
1/25/2007   Post a comment
Customers can specify the configuration of UNIPOWER's multi-output 400-watt, 3.3 to 48 VDC switching supply, in the company's QuiQ series, for next day delivery.
Ultraminiature AC/DCs meet medical approvals
Product News  
1/25/2007   Post a comment
Astrodyne Corporation's ASM line of ultraminiature open frame switching power supplies, measuring as small as 2.28-by-2-by-0.56 inches (LWH), provide 10 to 15 watts at 3.3 to 24 VDC in 10 models for medical applications.
Self-powered wireless sensor nodes: Among other things, a load management feat
Design How-To  
1/24/2007   Post a comment
Distributed, self-powered, micro-scale, wireless sensor networks promise to revolutionize large-scale systems, changing the way they are studied, built, monitored, and controlled. Key enabling attributes to this technology are its high sensor-density and non-invasive features, which present challenges. Here's what you need to know.
5-55 watt AC/DC wall adapters meet Energy Star specs
Product News  
1/23/2007   Post a comment
The KSAF series of 5- to 55-watt wall-mount (AC/DC) switchers from Advanced Power Solutions comply with the new CEC/Energy Star energy efficiency standards.
Gold is key to ending platinum dissolution in fuel cells
News & Analysis  
1/22/2007   Post a comment
Brookhaven National Laboratory says it has found a way to keep the platinum used as a catalyst in fuel cells from dissolving and degrading performance. The U.S. Department of Energy thinks the breakthrough could help put the federally mandated Advanced Energy Initiative back on track toward realizing all-electric vehicles by 2020.
Get the most (charging) out of your USB port
Design How-To  
1/21/2007   Post a comment
One of the features of the USB is its advanced power management capability. Find out what the power characteristics of USB ports are, what the challenges are, and how applications can benefit from available USB power.
Solar battery package powers LCD desktop monitors
Product News  
1/19/2007   Post a comment
NEC Display Solutions says it's the first display company to offer a solar-powered system for all of its flat panel LCD display monitors.
2-W EMI-protected AC/DC measures less than 1 cubic inch
Product News  
1/19/2007   Post a comment
Bias Power's BPS-2 Series of universal 2-watt AC/DC supplies features a patented circuit design that effectively eliminates line EMI without need for an input filter, all in a package measuring under 1 cubic inch.
Ramp generator provides improved control of multiple dc/dc converters
Design How-To  
1/18/2007   Post a comment
This circuit uses a ramp generator to provide improved control of tracking, point-of-load dc/dc supplies
Apple set for 50% margins on iPhone, says iSuppli
Design How-To  
1/18/2007   Post a comment
The cost of manufacturing each 4GB version Apple's iPhone is put by market analyst group iSuppli at about $230, meaning each of the phones sold could generate a 50.7 percent gross margin for Apple Inc. and partner Cingular Wireless.
Digital control challenges old ideas about power supply design
Design How-To  
1/17/2007   1 comment
Trade-offs are part of power supply designing but digital control is challenging these decisions. Find out how digital control is forcing a re-evaluation about using voltage-mode or current-mode control.
Fairchild to acquire System General for $200 million
News & Analysis  
1/17/2007   Post a comment
Fairchild Semiconductor is moving fast to bolster its position with Asian power supply manufacturers by acquiring embattled Taipei-based power chip supplier, System General.
Battery charger controller improves efficiency and extends battery life
Product News  
1/17/2007   Post a comment
Intersil offers a battery charger controller that provides +/-0.5% charge voltage accuracy and a programmable charge current limit, adapter current limit and charge voltage for configuring to a wide range of Li-Ion/Li-Ion polymer battery packs.
Low-cost DC/DC powers PC-104 applications
Product News  
1/17/2007   Post a comment
Touting a low-cost solution for PC/104 and PC104+ applications, Sensoray's Model 209 triple-output DC/DC supply, working from an 8-30 VDC input, provides 5 VDC at 5 amps and ±12 VDC at ±500 mA.
Rise above the rest: Get an Associate Certification for operating a data center
News & Analysis  
1/16/2007   Post a comment
American Power Conversion says that its Data Center University (DCU) online curriculum now offers an Associate Certification, an international, vendor-neutral credential that validates the knowledge, skills and ability for designing, building, and operating data centers.
Low-cost 2-watt DC/DCs feature 6 kV isolation
Product News  
1/16/2007   Post a comment
MicroPower Direct's A200EHI series of miniature series of 2-watt DIP converters touts 6 kVDC isolation and low cost for industrial process systems, medical equipment and instrumentation, and robotic systems.
Zero-power modules point the way for energy harvesting
Design How-To  
1/15/2007   1 comment
Energy harvesting is still in its infancy and there are technical challenges that need to be addressed to make it a mainstream replacement for batteries and AC power. The circuitry must switch the power from an energy storage device and then supply it to the application. Here's what you need to know
Weidmuller extends adjustable-DC DIN supplies
Product News  
1/12/2007   Post a comment
Four new adjustable AC/DC supplies from Weidmuller, additions to the company's ConnectPower (CP SNT) series, reflect the trend towards more compact sources with greater flexibility for the industrial environment.
Step-down DC/DC converter delivers the power from a thin SOT
Product News  
1/11/2007   Post a comment
Linear Technology announces the LTC3560, a high efficiency, 2.25 MHz, synchronous buck regulator that delivers up to 800mA of continuous output current.
Wireless beacon could recharge consumer devices
Product News  
1/11/2007   Post a comment
Wireless battery technology unveiled at the Consumer Electronics Show by Powercast LLC is destined for a consumer device being readied for release later this year by Philips.
Top 10 methods for ASIC power minimization -- Part 2
Design How-To  
1/10/2007   Post a comment
This is the second part of a two part article focusing on power minimization in deep submicron ASICs. The focus of this part is on five effective implementation level low power techniques.
270-watt programmable AC/DCs are regulated to within 2 mV
Product News  
1/10/2007   Post a comment
Acopian's previously unannounced Series Y family of highly regulated linear AC/DC programmable supplies deliver up to 270 watts at 0-6, 0-15, 0-30, 0-50, or 0-100 volts in 31 models for test equipment, analog systems, and R&D lab applications.
Compact 60-W AC/DC desktop supply meets Class II medical specs
Product News  
1/10/2007   Post a comment
XP Power's PDM60 AC/DC desktop supply, among the industry's most compact supplies for 60-watt Class II medical applications, measures just 5.3-by-2.5-by-1.6 inches.
Miniature 4:1 input DC/DC converters deliver 2 watts
Product News  
1/9/2007   Post a comment
MicroPower Direct's D200RU series of 2-watt DC/DC converters, in a single in-line package (SIP), tout a 4:1 input voltage range, tight output regulation, 1,000 VDC input/output isolation and low cost.
FAQs about US-EU agreement for Energy Star program
News & Analysis  
1/8/2007   Post a comment
A bilateral agreement has been forged between the United States and the European Union for administering the ENERGY STAR program. Here are some frequently asked questions and answers to help you understand its ramifications on you.
Top 10 methods for ASIC power minimization -- Part 1
Design How-To  
1/8/2007   Post a comment
This is a two-part article focusing on power minimization in deep submicron ASICs and how to strike the right balance between flexibility and power. Part 1 is dedicated to technology independent architectural power saving techniques and basic power consumption theory.
100 Watt switcher is green power compliant
Product News  
1/5/2007   Post a comment
Advanced Power Solutions introduces a 100W series of desktop switcher that is approved for medical use.
100-watt AC/DC medical desktop supply is Green compliant
Product News  
1/5/2007   Post a comment
Advanced Power Solutions' new APS100ESM series of 100-watt medical approved desktop switchers comply with "Green" energy efficiency standards.
2.5 kW front-end rectifier claims the first offered in 1U
Product News  
1/4/2007   Post a comment
Cherokee International says its CAR2500 front end for datacom, telecom and industrial applications is the first 2500-watt rectifier offered in 1U.
Thermal-protection circuit has adjustable temperature limit, programmable hysteresis
Design How-To  
1/4/2007   Post a comment
This low-cost circuit features adjustable trip temperature, programmable hysteresis, and remote temperature sensing
High frequency implications for switch-mode DC-DC converter design
Design How-To  
1/4/2007   1 comment
High frequency design of switch mode DC-DC converters require attention placed on parasitic impedances, effects from PCB layout, and more. This means design engineers need to be able to move and think in the time and frequency domains. Here's help for these next generation designs.
Quad-output AC/DC delivers 160 watts in 1U
Product News  
1/3/2007   Post a comment
Tamura's AAD160 series of compact, regulated triple- and quad-output switching power supplies delivers 160 watts for 1U-high applications.
AC/DC front ends deliver up to 2 kW at 48 volts
Product News  
1/3/2007   Post a comment
C&D Technologies has added to its 12-volt D1U-W family of front-end AC/DC supplies with its high-efficiency D1U-W 48-volt series that provides up to 2 kW for servers, workstations, and storage systems.
A salute to the best of power in 2006
Design How-To  
1/2/2007   Post a comment
Here's another chance (those of you who receive the newsletter saw the top eight articles during the month of December) to see the top articles from 2006. Three were so good that they returned to top ten from the best of 2005.
Page 1 / 2   >   >>


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