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Content tagged with Power
posted in January 2005
Digital control of complex power made easy
Product News  
1/31/2005   Post a comment
Microchip Technology makes the complex, easy by integrating it's microcontroller with analog building blocks for intelligent power conversion designs
MOSFET or bipolar, which should you use?
Design How-To  
1/28/2005   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. Here's an article to help you review the characteristics and benefits of each technology to extract the best system performance.
POLs pack power punch
Product News  
1/28/2005   Post a comment
Artesyn Technologies' ultracompact SIL30E and SMT30E point-of-load (POL) converter modules deliver up to 30 amps at 0.8 to 3.63 volts for densely packed ASICs, network processor and DSP applications. That's 75 percent more current than provided by comparably sized products, according to the company. The two-phase, 2-MHz synchronous buck converters, for use in distributed power architectures with an 8-14 volt intermediate bus, are fully compatible with similar products from members of the Point-O
Low voltage trench MOSFETs improve power circuit efficiency
Product News  
1/28/2005   Post a comment
ON Semiconductor today introduced eight new N-channel and P-channel, low voltage Trench MOSFETs. These devices reduce resistance between drain and source to improve overall power circuit efficiency by 30 percent in portable products.
PWM controllers enable low standby power in SMPS for notebooks, battery chargers
Product News  
1/27/2005   Post a comment
ON Semiconductor's NCP1230 and NCP1231 families PWM controllers feature industry's only Power Factor Correction stage turn-off in light or no-load conditions.
UPS hails "triple-play" performance
Product News  
1/27/2005   Post a comment
Eaton Corporation bills its Powerware 9155 as a breakthrough, (on-line) double-conversion uninterruptible power system (UPS) that provides 8 to 15 kVA in four models for mission-critical applications. It's touted as a "triple play" step-advance in technology, user-friendly design and cost-effectiveness that resets industry standards in customer value and product performance.
Flash microcontroller exceptional for controlling tasks in battery-powered devices
Product News  
1/27/2005   Post a comment
EM Microelectronics introduces a low voltage and low power consumption flash microcontroller to control tasks in battery-powered devices household appliances and body-care products.
Miniature DC-DC Converters provide 95 Percent Efficiency
Product News  
1/26/2005   Post a comment
National Semi introduces a miniature, 2MHz, 600mA DC-DC converter maximizing batter life in portables.
A user-friendly boost DC-DC converter topology - it's fast and widely stable
Design How-To  
1/24/2005   1 comment
In battery-powered applications an integrated DC-DC converter circuit solution offers several advantages in terms of cost, size, and design complexity, but it's hard to design. Here's a way to get over the hurdle caused by the frequency compensation circuit that varies due to manufacturing processes.
Nanosys s’allie à Sharp dans le cadre d’un projet de piles à combustible
News & Analysis  
1/21/2005   Post a comment
Nanosys Inc. la jeune pousse de nanotechnologie contrainte d’entrer en bourse en 2004, a accepté de développer des piles à combustible, basées sur la nanotechnologie, conjointement avec Sharp Corp. (Osaka, Japon).
Inductors offer low DCR values, power savings for DC/DC converters
Product News  
1/21/2005   Post a comment
Vishay adds to IHLP family of high-current, surface-mount inductors that feature saturation currents up to 40 A, typical DCR values down to 3.0 milli-ohms, and a 1.8-mm height profile.
Quad-voltage tracker/sequencer ensures proper system power-up/-down operation
Product News  
1/21/2005   Post a comment
Maxim introduces an EEPROM-programmable, quad-voltage power supply tracker/sequencer. It monitors four voltages and ensures proper power-up and power-down conditions for systems requiring voltage tracking and/or sequencing.
BTL power amp and multi voltage regulator support car radio apps
Product News  
1/20/2005   Post a comment
A combination of a quad Bridge-Tied Load (BTL) power amplifier, a multiple voltage regulator and a power switch from Philips Semiconductor supports the complete power supply and audio amplifier requirements in low and mid-end car radio applications.
Gas-Filled Relay takes worry out of high voltage
Product News  
1/20/2005   Post a comment
GIGAVAC, a provider of high voltage relays, announces a completely sealed single-pole 70 kV relay. It's filled with SF6 gas for low leakage and high current capacitive discharge switching.
Technology extends battery life for portable consumer electronics
Product News  
1/20/2005   Post a comment
Elpida's innovative Super Self Refresh (SSR) technology achieves a 95% reduction in self refresh current to extend the battery life for portable consumer electronics.
The switch mode efficiency challenge
Power DesignLine Blog  
1/20/2005   Post a comment
National Semiconductor's Paul Greenland talks about how an IC manufacturer can increase efficiency in a switch mode power supply in his latest blog.
Backup system powers remote sites via landline
Product News  
1/19/2005   Post a comment
Valere Power's Line Power Solutions family extends battery backup from a centralized source to a remote location via unused telephone lines to support "triple-play" voice, video, and data service offerings and wireless access points.
Mobility, Energizer enter alliance for power adapters
News & Analysis  
1/19/2005   Post a comment
151 Mobility Electronics Inc. and Energizer Battery Inc. have formed a strategic multi-year alliance to develop and market power adapter and battery products leveraging each other's advanced technology.
Integrated power management IC optimized for portable apps
Product News  
1/19/2005   Post a comment
Linear Technology introduces a complete power management system IC optimized for portable applications powered by dual cell alkaline/NiCad/NiMH batteries, USB, or wall adapter.
Forum Seminar offers Digital Control of Switching Power Converters
Product News  
1/18/2005   Post a comment
e/j Bloom associates will host a professional advancement seminar on Digital Control of Switching Power Converters as part of the second annual Digital Power Forum to be hosted September 12-14 at the Sheraton Colonial, Boston North.
Tough 3-phase inverter takes on the marines
Product News  
1/18/2005   Post a comment
Absopulse Electronics' CTP1500-R series, a ruggedized (DC/AC) inverter, delivers a 1500 VA three-phase output at 50, 60 or 400 Hz for marine environments and industrial and aviation ground support equipment, and fuel cell, solar cell, and wind power conversion applications. The microprocessor-based, high frequency PWM system synthesizes sinusoidal outputs of 208, 380 or 415 VRMS (phase-to-phase) from a 24, 28, 48, 125 or 250 VDC input. Total harmonic distortion at full load is less than 5 perce
The need for inexpensive non-isolated PoE dual power supply solutions
Design How-To  
1/17/2005   Post a comment
Power Source Equipment like Hubs with Power over Ethernet capability are emerging and any of these applications are very price sensitive. To serve the powered devices with a supply voltage of 3.3V or 5V, it is necessary to have a buck converter that scales down the available input voltage from the power source equipment. The author details how you can develop one.
A comprehensive solution for VoIP protection
Product News  
1/14/2005   Post a comment
MGE UPS Systems introduces a comprehensive uninterruptible power supply solution for Voice over IP networks. It includes a UPS for protecting the supplies to the active components and terminals, supervisory software, services and power supply for VoIP phones using Power over Ethernet midspans.
DOSA and PMBus initiative join forces
News & Analysis  
1/14/2005   Post a comment
Tyco Electronics Power Systems and SynQor, the founding members of the Distributed-power Open Standards Alliance (DOSA), announced an alignment with the Power Management Bus (PMBus) initiative led by Artesyn Technologies Inc., as part of a migration effort to digitally-interfaced on-board DC/DC power architecture.
DC/DC Controller offers margining, tracking and PLL capability
Product News  
1/14/2005   Post a comment
Linear Technology introduces the LTC3770, a synchronous step-down DC/DC controller with constant on-time, valley current mode architecture, a 50nsec typical minimum on-time, allowing the control loop to respond instantly to load steps.
Dual-channel rms power detector simultaneously measures two complex input signals
Product News  
1/13/2005   Post a comment
Analog Devices offers a dual-channel rms power detector simultaneously measures two input signals, enabling calibration and monitoring of signal path gains.
Battery management IC increases battery safety in cell phones, other portable electronics
Product News  
1/12/2005   Post a comment
TI announces an intelligent battery management IC that identifies potentially unsafe batteries not approved by consumer electronics manufacturers for use in their devices. It authenticates battery packs used in cell phones, PDAs, digital still cameras, notebooks or other portable applications.
PSMA and China PSS form alliance to advance power supply developments
News & Analysis  
1/12/2005   Post a comment
The Power Sources Manufacturers Association and the China Power Supply Society announce that they have entered into a Cross Membership Agreement intended to foster collaboration and information exchange between the two organizations.
MGE UPS Systems and Wright Line Form Strategic Partnership
News & Analysis  
1/12/2005   Post a comment
MGE and Wright Line formed an alliance to provide customers with rack enclosures integrated with Uninterruptible Power Systems and other power availability solutions from one source.
Power supply sequencer enables combination of modules and DC/DC converter ICs
Product News  
1/12/2005   Post a comment
Linear Technology introduces the LTC2924, a power supply sequencer designed for use with power supplies, including shutdown pins or modules using external N-channel MOSFETS in series. Capable of input monitoring and enabling four supplies in sequence during both power up and power down
DC/DCs offer 30 watts in a 1-by-2 package
Product News  
1/12/2005   Post a comment
Broadening its DC/DC product offering, Wall Industries' CG Series, in a 1-by-2-by-0.4 inch package, delivers up to 30 watts in five models for general purpose applications. That power capacity in modules of this kind is equivalent to what's usually seen in a 1.6-by-2 inch package, according to the company, and thus the converters claim a 38 percent savings in board real-estate.
The use of power management silicon in Power over Ethernet applications
Design How-To  
1/11/2005   Post a comment
PoE offers the simultaneous transmission of power, as well as data, to any device connected to the Ethernet. It is fundamentally changing the way that certain lower power appliances are powered.
Front-ends boost high-density distributed power
Product News  
1/11/2005   Post a comment
With a 1U-by-2U rack profile (1.57-by-3.07-by-12.03 inches), the DS Series of AC/DC front ends from Emerson Network Power (Astec Power Division) is equipped to deliver 450, and 550 watts for high-density data storage, medical and industrial applications. The supplies provide a main 12-volt output and a 3.3-volt standby output.
Buck DC/DC Converter unveiled with Power OK function
Product News  
1/10/2005   Post a comment
Analogic Tech offers a fully integrated 850kHz 1A Buck DC/DC Converter. This addition adds a Power OK function that monitors the output, alerting the system if the output voltage falls out of regulation.
ICs help Replace "Energy Vampires"
Product News  
1/10/2005   Post a comment
Power Integrations says that its EcoSmart technology enables manufacturers to earn the Energy Star label for their external power supplies.
30W DC/DC converters from Calex feature an ultra wide input range
Product News  
1/10/2005   Post a comment
30W DC/DC converters from Calex feature an ultra wide input range
High current 55-V Q101-qualified MOSFETs rated for continuous duty
Product News  
1/10/2005   Post a comment
International Rectifier offers a pair of 55V-rated Q101-qualified automotive HEXFET power MOSFETs rated for continuous duty. The devices are designed to increase safety margin in batteries or transients caused by loads.
GAÏA offers 35W DC/DC modules in single, dual and triple output versions
Product News  
1/7/2005   Post a comment
GAÏA Converter introduced a family of 35W DC/DC modules with wide input ranges of 9 to 36 Vdc, 18 to 75 Vdc and 36 to 140 Vdc.
AC/DC supplies maintain a new silence
Product News  
1/7/2005   Post a comment
Touting silent and efficient operation at the higher powers, Antec's TruePower 2.0 line of 380-550 watt AC/DC power supplies for PCs sports an audible noise level of only 21 dBA. The supplies include a 120 mm fan that runs at the lowest speed appropriate to load and conditions, helping to achieve the optimum balance between noise reduction and necessary cooling.
Air Distribution Architecture Options for Mission Critical Facilities
Design How-To  
1/6/2005   Post a comment
Server consolidation projects, along with the shrinking physical size of servers and storage systems, has resulted in high power density and high heat density. Even though the typical per-enclosure power consumption in a data center remains on the order of 1kW, equipment may be configured that draws over 15kW per enclosure. This strains the capability of the average data center.
Servers offer remote access, monitoring with encryption and authentication
Product News  
1/6/2005   Post a comment
American Power Conversion (APC) introduces 8, 16, 32 and 42-port Console Port Servers enabling secure remote management of up to 1,024 electronic devices such as servers and routers.
Galaxy Power joins DOSA
News & Analysis  
1/5/2005   Post a comment
Galaxy Power Inc. has become the latest member of the Distributed-power Open Standards Alliance (DOSA), joining a slew of power suppliers in the almost year-old industry alliance.
Advanced MOSFETs boost DC/DC performance
Product News  
1/5/2005   Post a comment
Toshiba America Electronic Components (TAEC) has added eight new 40-, 60-, 100-, 150-, 200- and 250-volt single n-channel devices to its SOP Advance MOSFET family to improve the performance of medium-power DC/DC converters.
Half-brick for PoE touts high efficiency
Product News  
1/5/2005   Post a comment
Touting high efficiency— 92.5 percent at full load—Advanced Power Conversion's H201 series DC/DC converter complies with the IEEE 802.3af standard to deliver 200 watts at a regulated 52.5 volts
Headlamps for the Future: HID or LED?
Design How-To  
1/5/2005   Post a comment
One engineer's take on why white LED headlights may be a viable option in just a few years.
Bipolars do motors a good turn
Product News  
1/4/2005   Post a comment
Zetex Semiconductors introduces its newest bipolar transistors, the ZX5T851Z NPN and ZX5T951Z PNP devices that tout efficient high-current operation for DC motor control applications.
Increased power handling from compact PNP
Product News  
1/4/2005   Post a comment
Zetex offers the ZX5T2E6 PNP transistor, which offers a switched load power handling capability of 70W in a miniature SOT23-6 package.
Digital Multiphase Power for CPU Cores
Design How-To  
1/3/2005   Post a comment
The relentless march of technology toward ever increasing CPU speed and performance is taxing today's power systems. Digital Multiphase Power from Primarion and Intersil may be the first architecture that meets key performance requirements for current and future needs.
Schottky rectifier meets cost, size needs for low-power applications
Product News  
1/3/2005   Post a comment
Philips Semiconductor introduces the VF PMEG1020EV Schottky rectifier that provides 2 A continuous current capability and improved efficiency in a SOT666 packages. It helps reduce system cost and size in all low-power and high-efficiency applications.
Power surge - worldwide analog market report
Special Report  
1/3/2005   Post a comment
Power management continues to quietly outperform several of the more celebrated product markets, including microprocessors. The power management industry continues to deliver strong results that matches the performance of the overall semiconductor market.


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