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posted in March 2007
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Smart junction blocks ease the automotive wiring squeeze: Part 2 - Enablers and advantages
Design How-To  
3/30/2007   Post a comment
Clever connector design and intelligent MOSFETs, with a proper PCB layout and thermal design, come together for a smart, fuse-and-relay-free junction block.
Isolated DC/DC converters deliver 180 W
Product News  
3/30/2007   Post a comment
FDK introduced the FPQR48T01215 and FPQR48T01214 converters which provide up to 180 W of output power with minimal derating at elevated temperatures.
Maxwell Technologies announces webcast on ultracapacitors in cold engine starting
News & Analysis  
3/29/2007   Post a comment
Maxwell Technologies will present a webcast on how ultracapacitors succeed in cold engine starting environments. Learn how ultracapacitors provide higher energy storage and offer more efficiency.
REVIEW: 300-mV input-voltage boost converter throttles micro-fuel cells
Product News  
3/29/2007   Post a comment
Chip maker Texas Instruments is debuting an ultra-low-input DC-to-DC boost converter IC that promises to let portables operate from new energy sources such as micro-fuel cells. TI's power circuit can let you build converters that operate with input voltages lower than 300-mV. eeProductCenter Senior Technical Editor Alex Mendelsohn reports.
Shaped-foil inductor could reduce size, cost for energy applications
Product News  
3/29/2007   Post a comment
A shaped-foil inductor design is offering loss reductions as high as 50 percent compared to conventional inductors.
Solar Power Conference call for presenters
News & Analysis  
3/28/2007   Post a comment
The Solar Power Conference and Expo is the big event for those interested in solar for domestic and worldwide markets. Find out what sessions are looking for presenters but hurry because the deadline for submissions is April 6.
Smart junction blocks ease the automotive wiring squeeze: Part 1 - The electronic distribution system problem and the MOSFET/IP solution
Design How-To  
3/28/2007   Post a comment
Applying technology and IP, junction block developers target both functionality and cost for a reliable design without any fuses or relays.
National Semi tour to deliver technical seminars on power management design
News & Analysis  
3/28/2007   Post a comment
National Semiconductor announces that its power management experts will go on tour to discuss fundamentals, design techniques and application examples. Topics covered include DC-to-DC converter topologies, power management design techniques, powering FPGAs and much more.
Market studies available for piezoelectric, ultracapacitors, and car battery, lighting markets
News & Analysis  
3/28/2007   Post a comment
Innovative Research and Products offers three market studies that include piezoelectric operated actuators and motors markets, ultracapacitors, and automotive platform that covers starters, switches, solenoids, relays and fuses.
Low power TI boost converter targets solar cells
News & Analysis  
3/28/2007   Post a comment
Texas Instruments has started sampling a 0.3V input power management chip with a 0.5V start-up that will enable portable electronic end-equipment to draw power from new energy sources, such as solar and micro-fuel cells.
Designs that improve performance per watt
Design How-To  
3/26/2007   Post a comment
We've come to expect faster, cheaper and more functionality from our computing devices but cost of computing has made both large and small users pay attention to what's inside. Here's how to design with a more holistic energy approach for processors, drives, power supplies, and displays.
UMC to enter solar cell business in collaboration with Ulvac
News & Analysis  
3/23/2007   Post a comment
United Microelectronics Corp. has decided to enter the rapidly growing solar cell market with Ulvac Inc. providing production facilities and technical support, the two companies announced on Friday (March 23).
Power supply features dimmable LED
Product News  
3/23/2007   Post a comment
A dimmable LED power supply from Foster Transformer features patented short circuit and overload protection, and can be dimmed with a standard household dimmer.
AC/DC supply packs 300 watts in compact footprint
Product News  
3/23/2007   Post a comment
Lambda has expanded its NV family of configurable AC/DC power supplies with a 300-watt series.
UMC to enter solar cell business in collaboration with Ulvac
News & Analysis  
3/23/2007   Post a comment
NexPower, a UMC group company, will enter into the thin film solar cell market in collaboration with Ulvac. The deal will be the opening of Ulvac's new business to offer a package of solar cell production facilities and technologies.
QPL-certified Schottky rectifiers aid high-reliability power systems
Product News  
3/22/2007   Post a comment
International Rectifier introduced a series of Schottky rectifiers in accordance to the Defense Supply Center Columbus (DSCC) Qualified Products List (QPL). These QPL devices target high-reliability applications in switching power supplies (SMPS), satellite power distribution systems, resonant power converters, and low-voltage motor control.
Mid-voltage power MOSFETS feature low switching losses
Product News  
3/22/2007   Post a comment
Aimed at high-power, low-voltage power conversion applications, IXYS releases a line of mid-voltage power MOSFETS with ratings from 55 to 100 volts in proprietary ISOPLUS i5-Pak packages.
Developing an automotive electrical distribution system: Part 2 - Simulation and analysis ease design flow, cut warranty costs
Design How-To  
3/21/2007   Post a comment
Simulation and analysis techniques can be applied to an electrical distribution design flow to make it more efficient and less costly. Critical elements of such methods include early system simulation, interpretive analysis, FMEA, and component sizing.
Fast-recovery diodes suit 500- and 600-V applications
Product News  
3/21/2007   Post a comment
Microsemi Corp. launched a line of FREDFETs (H-FREDFETs) fast-recovery diodes to its latest-generation POWER MOS 8 product line. The MOS 8 H-FREDFET devices are designed for a range of 500 V and 600 V applications including AC-DC offline power supplies, motor drivers, server and telecom power systems, solar inverters, single- and three-phase arc welding and plasma cutting equipment, battery chargers, semiconductor capital equipment, and induction heating.
DC/DC converters delivers up to 5 W
Product News  
3/21/2007   Post a comment
Power Sources Unlimited developed the TES-5 series of low-profile, surface mount dc/dc converters that deliver up to 5 W from a 1.31- x 0.81- x 0.4- in. encapsulated package. The series features a 2:1 input range of 9-18 Vdc, 18-36 Vdc, or 36-75 Vdc with single or dual outputs.
Power amplifier's output power drive portable devices supporting WiMAX frequency bands
Product News  
3/21/2007   Post a comment
The ADL5570 is a high-linearity power amplifier (PA) designed for mobile WiMAX terminals and is optimized for operation in the 2.3-GHz to 2.4-GHz band. Compared to WiMAX PAs from other vendors, the ADL5570 consumes half the current and offers PAE (power-added efficiency) of more than 20 percent.
Fundamentals of power system ORing
Design How-To  
3/21/2007   Post a comment
Many portable devices, blade servers and telecom switches require power architectures with redundancy, summation of power for capacity, or a capability to select multiple sources. Today ORing is often implemented with MOSFETs and IC-based control. Find out what ORing functions are required and what prevalent techniques are used.
390-volt ultracap module suits heavy-duty apps
Product News  
3/20/2007   Post a comment
Maxwell Technologies has expanded its BOOSTCAP ultracapacitor line with a 390-volt module that offers up to 2.8 times greater energy storage and higher integration than earlier products for hybrid and electric vehicles and heavy-duty industrial applications.
1.5W mini DC/DC converter offers 90% efficiency and tight load regulation
Product News  
3/20/2007   Post a comment
Bear Power Supplies introduces its BPS Series high-voltage DC/DC converters with 90% efficiency and load regulation with 3% change from no-load to full-load.
390-volt ultracap powers heavy-duty transportation applications
Product News  
3/20/2007   Post a comment
Maxwell Technologies introduces a 390-volt BOOSTCAP ultracapacitor module to provide scalable, easy-to-integrate, energy storage and power delivery solutions for heavy hybrid and electric vehicles.
Teardown that Prius!
Automotive DesignLine Blog  
3/19/2007   Post a comment
Check out this video to see what it's like to take apart a hybrid vehicle--in about one minute.
20-W DC/DC converters have 9- to 75-Vdc input range
Product News  
3/16/2007   Post a comment
Tracopower introduced the TEN 20WIN series of 20-W wide input range DC/DC converters. The TEN 20WIN series consists of 14 models offering 9 to 36 Vdc or 18 to 75 Vdc input ranges and single- or dual-outputs ranging from 3.3 to 15 Vdc.
Power supply provides 400 W with status, control
Product News  
3/16/2007   Post a comment
APS released a 400 W switching power supply that measures 8.00 x 5.00 x 1.60 in. with featured status and control signals for edge systems. These supplies feature universal AC input with active power factor correction and single outputs ranging from 2.5 to 58 Vdc and up to 400 W of output power.
REVIEW: Power management chip smoothly throttles USB, battery subsystems
Product News  
3/15/2007   Post a comment
IC maker Maxim Integrated Products rolls out a smart dual-input USB/AC-adapter charger chip for use in circuits powered by single-cell Li+ batteries. The IC's charger integrates all power switches required for charging and switching a load between a battery and external power, eliminating the need for external pass devices. Click to read eeProductCenter Senior Tech Editor Alex Mendelsohn's review of this less-than-$2 device.
Accurate Thermal Analysis of Chip/Package Systems
Design How-To  
3/15/2007   Post a comment
With the increasing complexity and power dissipation of modern electronic designs, controlling peak temperature and predicting the temperature profile on the chip early in the process is becoming critical for insuring system reliability. Low power design methodologies create their own thermal challenges, as they may generate "hot" and "cool" regions on the chip. Causes and soutions are explored.
Power supply reduces thermal load by more than 50%
Product News  
3/14/2007   Post a comment
Excelsys Technologies released the Xcite 1200 W modular power supply which features a low 1U profile, 15 W/in2 power density, 90% efficiency and "plug and play" architecture that allows users to configure a custom power solution.
Mouser to distribute Tyco's power products
News & Analysis  
3/14/2007   Post a comment
Mouser Electronics Inc. has expanded its power products offering by signing Tyco Electronics Power Systems Inc. to its distribution linecard.
Power manager IC enables battery charging during system operation
Product News  
3/14/2007   Post a comment
The AAT3670 power manager IC from AnalogicTech integrates a battery charger, current-limited load switches and control circuitry, which allows users to simultaneously charge their battery and run their system from an AC adapter or USB port without compromising the battery's charge cycle life and without adding external load switches.
Intermediate bus converters provide 97% conversion efficiency
Product News  
3/13/2007   Post a comment
Emerson Network Power launched two intermediate bus converters (IBCs) that are capable of delivering output power with a conversion efficiency of 97%. Forming the latest additions to the Artesyn family of high-power-density IBCs, the products comprise a 300 watt eighth-brick and a 642 watt quarter-brick.
IGBT Tutorial Part 2 - Static, dynamic characteristics
Design How-To  
3/13/2007   2 comments
In part 1 of this two-part article you got an up-close look at an IGBT device. Now, in Part 2, let's take a look at an IGBT datasheet.
DC/DC converter is housed in small package
Product News  
3/13/2007   Post a comment
PowerGate has launched the TES-5 series of surface-mount DC/DC converters in a small 1.31 x 0.81 x 0.40-inch encapsulated package aimed at battery-powered equipment, instrumentation, communication systems and industrial controls.
It isn't easy powering deep sub-micron CMOS loads
Power DesignLine Blog  
3/10/2007   Post a comment
The new, smaller, faster IC design has a dark side that can cause noise and cross talk. Enpirion's VP Paul Greenland takes a quick peak at the issue. It's about power management.
8-port PoE midspan targets security and SOHO applications
Product News  
3/9/2007   Post a comment
Phihong USA has developed a low-cost, 8-port midspan for security and SOHO installations. This Gigabit-compatible PoE midspan provides full power to all eight ports.
3M sues over battery patents
News & Analysis  
3/9/2007   Post a comment
3M has filed a federal lawsuit accusing several major consumer electronics companies of infringing on its patents for technology found in lithium-ion batteries, a rechargeable power supply used in electronic devices ranging from mobile phones to notebook computers.
Point of load DC/DC converters deliver up to 10A
Product News  
3/9/2007   Post a comment
FDK beefed up its Senpai Series of non-isolated point of load (POL) DC/DC converters with devices that operate from a 2.4V to 5.5V DC input bus, as well as deliver 10A in the smallest industry-standard footprint.
SunPower, subsidiary nab $10.5M in DOE funding
News & Analysis  
3/8/2007   Post a comment
Solar cell and panel manufacturer SunPower and its PowerLight subsidiary have been selected for an award of up to $10.5 million in funding from the U.S. Department of Energy's Solar America Initiative.
IGBT tutorial: Part 1 - Selection
Design How-To  
3/8/2007   6 comments
IGBTs are encroaching upon the high frequency, high efficiency domain of power MOSFETs. The industry trend is for IGBTs to replace power MOSFETs except in very low current applications. In part 1 of this two-part article you will understand what IGBTs are, the tradeoffs and how to select one. Part 2 takes a look at an IGBT datasheet.
Power management IC targets 3G mobiles
Product News  
3/6/2007   Post a comment
Micrel developed a power management IC targeted at UMTS, EDGE, CDMA2000 and WCDMA mobile handsets. Housed in a 2.5 x 2.8-mm MLF package, the MIC2807 provides three outputs including a 2 MHz buck regulator and two linear regulators.
Astec adds juice to Sager's power offering
News & Analysis  
3/6/2007   Post a comment
Sager Electronics announced it will stock the full line of Astec brand power supplies from St. Louis-based Emerson Network Power.
Power, cooling architecture helps health system deliver uninterrupted patient-care
News & Analysis  
3/6/2007   Post a comment
APC health system standardize its multiple data center environments and make essential monitoring easy.
Third gen chip reduces standby power in notebooks
Product News  
3/6/2007   Post a comment
NXP offers its third generation GreenChip energy efficient IC for switch mode power supplies that enables compact designs, and reduces no-load standby below the Energy Star requirements.
How to achieve predictable front-end power closure
Design How-To  
3/4/2007   Post a comment
Don't get caught saying "if only I had known about that power situation earlier" -- Here's what you can do now to improve power predictability.
Sanyo claims battery recall is limited to Lenovo
News & Analysis  
3/2/2007   Post a comment
Sanyo Electric Co., maker of the laptop batteries being recalled by Lenovo, claimed Friday (March 2) the defects are limited to Lenovo battery packs only.
MOSFET enables high-frequency switching in VRM power supplies
Product News  
3/2/2007   Post a comment
Fairchild Semiconductor introduced the FDMF8700, the first model in a suite of FET Plus Driver Multi-chip Modules for use in high-current synchronous buck applications supporting Intel's DrMOS™ Vcore DC-DC converter standard.
LXI digital multimeter provides 50,000 readings per second
Product News  
3/2/2007   Post a comment
Agilent Technologies introduced its 1U LXI digital multimeter, providing test system integrators with measurement speed and throughput of 50,000 readings per second at 6 1/2 digits with a bus query response time of under 500 microseconds.
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Rishabh N. Mahajani, High School Senior and Future Engineer

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Rishabh N. Mahajani, High School Senior and Future Engineer
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A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

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latest comment hw20110 Wish I could have a car like that!
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