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Content tagged with Power
posted in June 2007
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DC motor driver integrates Hall sensor for commutation
Product News  
6/29/2007   Post a comment
Allegro MicroSystems has introduced a full-bridge motor driver designed to drive low-voltage bipolar brushless DC motors. This single-chip A1442 motor driver eliminates the need for any external support components.
ST, CEA team on miniaturized energy sources solutions
News & Analysis  
6/29/2007   Post a comment
European chipmaker STMicroelectronics NV and the French Atomic Energy Agency (CEA) have concluded a collaboration agreement on the development of miniaturized energy sources solutions. Two joint laboratories will be established in Tours and in Grenoble, France, so as to conduct advanced research in solid-state microbatteries and microfuel cells for clean energy generation.
Print head and LCD driver delivers fast switching
Product News  
6/29/2007   Post a comment
Supertex has introduced a 32-channel, serial-to-parallel converter with high voltage, push-pull outputs. The HV610 driver IC is aimed at high-speed printers and LCD displays
Mobile video serial screen link: Part of a healthy power consumption diet
Design How-To  
6/29/2007   Post a comment
Raw power consumption for a competent mobile video display must be reduced by at least 40 percent in order to maintain the same battery life that current cell phone users have become accustomed to. While small improvements in power efficiency can add up, real innovative breakthroughs are required to solve this hardware challenge.
Vibrations good for harvesting electricity
Design How-To  
6/28/2007   Post a comment
Harvesting vibrations to produce electricity enables remote devices to be powered without batteries.
DC/DC controller connects power modules for increased load handling
Product News  
6/27/2007   Post a comment
TI introduces a single-channel version of its TPS40K stackable controller family that converts power supplies in data centers and telecommunications equipment into fully scalable, interleaved power systems with increased load handling and higher efficiency.
Boost controller eliminates heat sink with 97% efficiency
Product News  
6/27/2007   Post a comment
Linear Technology Corp. announces the LTC3814-5, a synchronous No RSENSE step-up switching regulator controller that eliminates the boost diode and the heat sink normally required in medium to high power non-synchronous boost converters.
TFT-LCD DC/DC converter integrates five operational amplifiers
Product News  
6/26/2007   Post a comment
Aimed at LCD TV and monitor displays, the MAX8795A TFT-LCD DC/DC converter from Maxim Integrated Products saves both space and cost by integrating five operational amps in a 5 x 5 x 0.8-mm package.
Vishay set to grab Infineon's crown in power semis
News & Analysis  
6/26/2007   Post a comment
Infineon Technologies is in danger of losing its leading position as the world's largest supplier of power semiconductors (discretes and modules) this year according to market watcher IMS Research.
DC/DC converter reduces power usage in 12-V industrial apps
Product News  
6/26/2007   Post a comment
AnalogicTech has released the first product, the AAT1162, in a family of synchronous step-down DC/DC converters that operate from a 12-V input and deliver up to 1.5 A of current.
Industry must share supply chain vigilance
News & Analysis  
6/25/2007   Post a comment
A supply chain error can result in a manufacturing and public relations disaster. Just ask Toshiba Corp. Almost nine months after it began a replacement program for a batch of defective batteries, the Japanese company was again out last week mopping up the mess.
Design with redundant N+1 PoL converters to increase system up-time
Design How-To  
6/25/2007   Post a comment
Until now, PoLs have been unable to provide redundant power with input to output isolation. Here's how to provide redundant power and input to output isolation for a PoL system.
Step-down DC/DC converter delivers low quiescent current
Product News  
6/25/2007   Post a comment
Linear Technology has developed a 2A, 36V step-down switching regulator with Burst Mode operation to keep quiescent current under 50-µA.
720-watt power supplies offer versatility
Product News  
6/24/2007   Post a comment
Acopian has developed 720-watt power supplies that it says have features not available on most general-purpose products.
DC/DC converter delivers 120-W with 20-kV isolation
Product News  
6/24/2007   Post a comment
Absopulse Electronics' DIO 122 is a dual output, high voltage isolated DC/DC converter developed for high power gate drivers and similar applications in oil and gas, mining, medical, railway and industrial environments.
Apple patent foretells iPod and iPhone security
News & Analysis  
6/22/2007   Post a comment
A patent application published Thursday by the U.S. Patent & Trademark Office suggests that Apple has been developing security features for the iPod and the iPhone.
Murata buys C&D power electronics division
News & Analysis  
6/22/2007   Post a comment
Murata Manufacturing Co., Ltd. announced an agreement to buy C&D Technologies Inc's power electronics division (PED) for $85 million in cash.
DC/DC module optimized for low cost, environment
Product News  
6/22/2007   Post a comment
Ericsson Power Modules has introduced a pinned version of its MacroDens PKR DC/DC module that is fully compatible with the previous platform. The PKR-PI module is also environmentally friendly and easier to recycle at end-of-life.
White LEDs double brightness from compact package
Product News  
6/22/2007   Post a comment
The TLWK1100B from Toshiba Electronics Europe is a white LED that provides double the brightness of previous devices in the same form factor. Supplied in a standard, compact package, the part delivers typical luminous intensity levels of 1500mcd from a drive current of only 20mA.
ON Semi drives European automotive center
News & Analysis  
6/22/2007   Post a comment
ON Semiconductor has set up a specialist engineering center in Munich, Germany focusing on the development of power management solutions for a variety of automotive applications including body, HVAC, powertrain, safety and infotainment.
DC/DC converters yield high efficiencies
Product News  
6/21/2007   Post a comment
C&D Technologies has introduced the UQQ family of quarter-brick DC/DC converters that supplies an ultra-wide 4:1 input range and 100 watts of power for battery-powered mobile, industrial, medical and telecommunications applications.
DC/DC converters deliver high operating efficiency
Product News  
6/21/2007   Post a comment
TDK Innoveta has launched a range of quarter-brick DC/DC converters with very high operating efficiency over a wide range of load conditions.
UPS beefs up power capacity, redundancy
Product News  
6/20/2007   Post a comment
APC-MGE adds paralleling capability for added power capacity and redundancy to midrange MGE Galaxy UPS family.
Standby and uninterruptible power supply tutorial - Part 2
Design How-To  
6/20/2007   1 comment
There is a big difference between the performances of the standby backup supply and an on-line UPS. This two-part tutorial steps you through the differences and similarities. This is Part 2 and it describes and provides examples of power factor and why it's important to understand.
Technical program unveiled for first-ever Power Architecture Developer Conference
News & Analysis  
6/20/2007   Post a comment
The Power Architecture Developer Conference offers more than 65 hours of technical sessions and labs on a wide range of Power Architecture topics that focus on breaking down the barriers to innovation at this must-attend event.
Darnell adds to energy harvesting research
News & Analysis  
6/20/2007   Post a comment
Darnell offers new sources for your research into energy harvesting, delving into market forces, the competition and the applications.
Switch-mode power supplies deliver up to 160-watts
Product News  
6/19/2007   Post a comment
Digital Power has released the HD160 series of high-density AC/DC switch-mode power supplies that deliver up to 160 watts, approximately twice the power currently available in the industry-standard 2 x 4-inch footprint.
Dc-dc converter is corona free at 12 kVrms
Product News  
6/19/2007   Post a comment
The DIO 122 is a dual output, high voltage isolated dc-dc converter developed for high power gate drivers and similar applications in oil and gas, mining, medical, railway and industrial environments.
DC/DC regulator module shrinks in size
Product News  
6/18/2007   Post a comment
The LTM4604 4-A regulator system from Linear Technology comes with an onboard controller, power switches, inductor and bypass capacitors housed in a 9 x 15-mm LGA package.
Standby and uninterruptible power supply tutorial - Part 1
Design How-To  
6/18/2007   3 comments
There is a big difference between the performances of the standby backup supply and an on-line UPS. This two-part tutorial steps you through the differences and similarities. Part 1 describes what they are and how to select the appropriate one.
Tiny Nintendo DS Lite drives volume
Teardown  
6/18/2007   Post a comment
Nintendo is enjoying a renaissance in gaming, so it seemed like a good time to peek into its current offering in portables. While a recent Nintendo Wii teardown by Portelligent tells a fascinating story of higher-end graphics and motion-sensing controllers, the lower-profile handheld game platforms are still a big part of the company's bottom line, and they're notable for their engineering.

DC-DC converter with integrated switch saves space
Product News  
6/15/2007   Post a comment
Maxim introduces the MAX15020 high-voltage DC-DC converter with an integrated high-side switch capable of delivering up to 2 A of output current, while operating with switching frequencies up to 500 kHz. Upshot: This translates into a board space and system cost savings.
Build isolated power supply using capacitors
Design How-To  
6/15/2007   Post a comment
Using capacitors for an isolated supply instead of a transformer may offer advantages in cost and size
4 MHz, 500 mA synchronous buck regulators features hyper-light load
Product News  
6/14/2007   Post a comment
Micrel launched the MIC23050/1, two high-efficiency 4 MHz, 500 mA synchronous buck (step-down) regulators assembled in a 2 x 2-mm MLF package. These devices use a novel and patented switching scheme which offer light-load efficiency and strong transient performance.
Nano, MEMS are advancing energy harvesting technology
News & Analysis  
6/14/2007   1 comment
Using nanotechnology and MEMS technology in energy harvesting applications is a work in progress that nevertheless shows huge potential, experts said.
Battery charger provides safe charging of nickel metal hydride battery cells
Product News  
6/14/2007   Post a comment
Nexergy's NC Series battery chargers are designed specifically for Nickel Metal Hydride (NiMH) batteries. They are available in a 12 or 24 W version, with output current of up to 3 A.
3G cellular radio drives fuel cell demand
News & Analysis  
6/14/2007   Post a comment
Rising demand for fuel cells has prompted manufacturer P21 GmbH (Brunnthal, Germany) to switch to volume manufacturing instead of individual production. The company expects that the transition from 2G to 3G mobile networks to further stimulate demand.
Power supplies aim for green data center upgrades
News & Analysis  
6/13/2007   Post a comment
APC-MGE is preparing an uninterruptible power supply that will address two of the biggest concerns facing data centers today: the need for increased power density, and the need to be green.
Synchronous converter delivers up to 200 mA
Product News  
6/13/2007   Post a comment
Linear Technology introduced the LTC3522, a dual-channel, 1 MHz synchronous converter. One channel uses a synchronous buck-boost topology which can deliver up to 400 mA of continuous output current with inputs above, equal, or below the output.
Converters address board-level power distribution issues in server, storage applications
Product News  
6/13/2007   Post a comment
Cherokee International announced new prices and a full range of CBE eighth-brick and CBQ quarter-brick DC/DC, non-isolated, intermediate bus converters for datacom applications.
Battery charger targets portable applications
Product News  
6/13/2007   Post a comment
Summit Microelectronics expanded their family of programmable battery charger integrated circuits with the introduction of the SMB139 single-cell, Li-Ion and Li-Polymer linear battery charger. The device's battery charging profile can be configured to adapt to new system designs and battery types.
Dual-output boost converter drives up to six white LEDs, OLED
Product News  
6/13/2007   Post a comment
Linear Technology developed the LT3498, a dual-output boost converter featuring a 2.3 MHz PWM LED driver and a low-noise OLED driver. The device includes an internal power switch and Schottky diode for each channel, in a 2 x 3-mm DFN package.
Controller supports input voltage ranges from 4.5 V to 20 V
Product News  
6/13/2007   Post a comment
Texas Instruments introduced a flexible, synchronous buck controller which simplifies power management design of LCD TVs and IP set-top boxes which use digital signal processors (DSPs) and FPGAs.
How to power sub-micron CMOS loads with an efficient LDO
Design How-To  
6/13/2007   Post a comment
The trend of smaller process geometries for digital ICs causes power issues for design engineers. Increased power consumption, lower core supply voltages and multiple power supply rails should be taken into consideration when selecting a regulator -- should it be a switching or linear regulator? Here's help deciding.
Digitally programmable Li-Ion charger IC provides design flexibility
Product News  
6/13/2007   Post a comment
The charging profile of the SMB139 single-cell, Li-Ion and Li-Polymer linear battery charger can be configured to adapt to new system designs and battery types.
Energy harvesting competitive analysis looks at the movers and shakers
Special Report  
6/13/2007   Post a comment
Energy harvesting is the next big area in power management and Darnell offers a 62-page report that looks at the activities of some of the companies poised to make big contributions to the market.
REVIEW: Surface-mount point-of-load DC-to-DC converter can be handled like an IC
Product News  
6/13/2007   Post a comment
Chip maker Linear Technology Corp. rolls out a DC-to-DC regulator module that operates from lower voltage input supplies. Handled much like an SMT device, the LTM4604 module comprises a complete 4-A regulator system with on-board controller, power switches, inductor, and bypass capacitors, all enclosed in a tiny land-grid-array package. eeProductCenter Senior Technical Editor Alex Mendelsohn takes a first look.
DC-input front end uses same racks as AC-input solutions
Product News  
6/12/2007   Post a comment
Power-One introduced the DC-input SFD550-12BG DPA/IBA front-end. This 12 Vout product uses the same packaging and backplane connectors as Power-One's SFP450 and SFP650 front ends, providing customers with DC-input solutions which do not require any redesign of their existing AC-input racks or backplane connectors.
Front-end power supply line adds 12 V hot-swap for distributed power systems
Product News  
6/12/2007   Post a comment
Lambda launched a 12 V output version of their FPS1000 front-end power supplies, for driving non-isolated point-of-load DC/DC converters in distributed power systems without the need for intermediate bus converters.
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