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Content tagged with Power
posted in July 2008
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Reduce power consumption by redesigning normally-on load switches with zero-power MOSFETs
Design How-To  
7/22/2008   Post a comment
A clever circuit configuration and specialized component can yield a normally-on load-switch which dissipates almost zero power
Power trends point to a knowledge of integration
Design How-To  
7/22/2008   Post a comment
As a holistic, system-level view of power management -- in addition to ever-advancing chip technologies -- becomes increasingly important, open conversations and collaboration among DSP, SoC, MCU and analog power management designers are critical, write three managers from Texas Instruments.
Motor driver targets portable applications
Product News  
7/22/2008   Post a comment
Allegro MicroSytems designed its latest low voltage dual full bridge motor driver to drive one bipolar stepper motor or two DC motors.
MOSFET combines package, process advances for motor-drive efficiency
Product News  
7/22/2008   Post a comment
ST's latest discrete power MOSFET combines ribbon bonding with surface-mount power package, and delivers 1.5 milliohm on-resistance with high current handling for 55V applications.
Energy applications for nanotech draw new investor interest
News & Analysis  
7/21/2008   Post a comment
Double-digit annual growth rates in both renewable energy and nanomaterials has generated interest in the intersection of the two worlds, a new conference heard Monday.
III-V solar startup raises $9.5 million
News & Analysis  
7/21/2008   Post a comment
Wakonda Technologies Inc. (Medford, Mass.), a developer of solar photovoltaic products, has said it has raised $9.5 million in Series A financing from Advanced Technology Ventures, General Catalyst Partners, Polaris Venture Partners, Applied Ventures, LLC and the Massachusetts Green Energy Fund.
Mobile WiMAX power amplifier delivers high-output power
Product News  
7/21/2008   Post a comment
SiGe Semiconductor claims its power amplifier delivers the highest available output power and temperature stability while meeting all spectral mask requirements for mobile WiMAX terminals while eliminating the need for support circuitry.
Osram claims LED brightness record
News & Analysis  
7/21/2008   Post a comment
In the quest to establish LEDs as a viable alternative to incandescent lamps and fluorescent tubes, Osram GmbH has achieved a success. The company claims it has produced the white LED with the highest brightness and efficiency.
Chinese hybrid car to use Infineon electronics
News & Analysis  
7/21/2008   Post a comment
During the Olympic Games in Beijng in August, Chinese automobile manufacturer Chang An will supply a number of hybrid-drive cars as taxis for the athletes and spectators. The power electronics for the "mild hybrid" drive will be supplied by Infineon.
Safe and fast battery charging between portable devices
Design How-To  
7/19/2008   Post a comment
This tutorial lays out the basics of traditional charging, the battery management requirements for modern portable systems, and how to implement device-to-device charging.
PCI Express goes everywhere
News & Analysis  
7/18/2008   Post a comment
ersol captures long-term crystalline silicon solar cell supply contract
News & Analysis  
7/18/2008   Post a comment
ersol Solar Energy AG has signed a contract is worth more than Euros 0.5 billion with the system house IBC SOLAR AG for the supply of crystalline silicon solar cells.
STMicroelectronics : Power MOSFET increases motor-drive efficiency
Product News  
7/18/2008   Post a comment
The STV250N55F3 power MOSFET combines STMicroelectronics' PowerSO-10 package with ribbon bonding to achieve low die-free package resistance.
High-voltage MOSFET drivers are pin compatible with HIP2100IB/HIP2101IB
Product News  
7/18/2008   Post a comment
Maxim Integrated Products has introduced its MAX15018/MAX15019 high-voltage, high-speed MOSFET drivers for high- and low-side n-channel MOSFETs.
Power IC enables smaller 'green' laptop adapters
Product News  
7/18/2008   Post a comment
Power Integrations has developed a solution to the power hungry external adapter while at the same time dramatically reducing size and enabling designs to comply with the upcoming ENERGY STAR® 2.0 specifications.
High-efficiency telco rectifier cuts power losses in half
Product News  
7/17/2008   Post a comment
Eltek Valere has introduced the Flatpack2 HE rectifier module 48/2000, an ac-to-dc power rectifier for telecommunications applications that offers 96% typical power conversion efficiency.
Wirewound power inductors deliver low dc resistance, high current ratings
Product News  
7/17/2008   Post a comment
Taiyo Yuden has introduced the NR6028 series of 6 x 6 x 2.8-mm height wirewound power inductors for dc/dc converter choke coil applications in flat panel displays (FPDs).
Understand how PSRR and other power-supply factors affect mobile-phone audio quality
Design How-To  
7/17/2008   Post a comment
Maintain superior audio quality in mobile phones by managing the voltage drops created by 217-Hz transients
250A Power MOSFET increases motor-drive efficiency
Product News  
7/17/2008   Post a comment
STs discrete power MOSFET STV250N55F3 combines ribbon bonding with surface-mount power package delivering 1.5 milliohm on-resistance with high current handling for 55V applications.
Energy-efficient equipment becomes Russian government topic
News & Analysis  
7/17/2008   Post a comment
For the first time, Russia is discussing at the ministerial level the energy efficiency of electrical and electronic equipment.
White OLEDs made brighter than light bulbs
News & Analysis  
7/17/2008   Post a comment
A solid-state, white-light source that is said to be brighter on a per-watt basis than incandescent bulbs has been described by a University of Michigan researcher.
Saft awarded $170 million contract by US Defense Logistics Agency
News & Analysis  
7/17/2008   Post a comment
The US Defense Logistics Agency (DLA) has awarded battery manufacturer, Saft, a multi-year contract worth up to $170 million to supply the US Army, Navy, Air Force and Marine Corps with BA5590 lithium sulfur dioxide (Li-SO2) batteries.
Ultra-low-profile VRM delivers 88% load efficiency
Product News  
7/16/2008   Post a comment
Murata Power Solutions has introduced an ultra-low-profile voltage regulator module (VRM) with an 80-A maximum output and 88% full load efficiency.
Achieving audio quality in mobile phones by managing voltage drops created by 217 Hz transients
Design How-To  
7/16/2008   Post a comment
The best choice for preventing GSM noise from degrading audio quality is to place a Linear Regulator (LR) with very Low Drop-Out (LDO) and Output Noise to supply directly the audio amplifier from the Lithium-Ion battery.
Signals from Noise Current Sources
Design How-To  
7/16/2008   Post a comment
Knowing different circuit topologies is a by-product of lacking the cognitive skills required of management and having no other option than to stay technical. The longer you stay technical, the more tricks you learn. This article shows some examples for generating precise currents.
Output products tout 1.2-V operation for reduced power consumption
Product News  
7/16/2008   Post a comment
Micrel Inc. has added an ultra-low-voltage CML output product family with fail safe I/O protection and an internal termination to its portfolio of high-performance interface products.
Bus converter enables higher power levels in eighth brick format
Product News  
7/16/2008   Post a comment
Ericsson Power Modules' eighth brick sized PKB-NG DC/DC bus converter provides an output power of 300W at 42A.
Small size SFFR resistors up to 1100 V
Product News  
7/16/2008   Post a comment
The small size SFFR gate resistors in IGBT driver circuits from Caddock Electronics are now available up to 1100 V.
Solve leakage and dynamic power loss
Design How-To  
7/16/2008   Post a comment
Achieving higher performance and integration requires lower process geometries and higher clock frequencies, and aggressive power management techniques. Both leakage and dynamic power loss must be accounted for to successfully design for efficiency. Here are techniques to manage energy at the system level.
TI chip boosts range for Zigbee
Product News  
7/16/2008   Post a comment
Texas Instruments will bolster the reach of Zigbee networks as much as ten-fold with the CC2591 that integrates a group of mainly passive components including a power amplifier, low-noise amplifier, balun, switches, inductors and RF-matching devices.
20-watt dc/dc converters offer ultra-wide input ranges
Product News  
7/15/2008   Post a comment
Aimtec has introduced the AM20EW-Z series of 20-watt dc/dc converters with an ultra-wide 4:1 input range of 9 to 36 Vdc and 18 to 75 Vdc.
MOSFET drivers help increase system efficiency
Product News  
7/15/2008   Post a comment
Microchip Technology has introduced the MCP1415 and MCP1416 (MCP141X) single-output MOSFET drivers in a SOT-23 package.
Smallest charger IC answers call for mobile phones
Product News  
7/15/2008   Post a comment
3-MHz switchmode Li-ion charger with USB On-the-Go support minimizes power dissipation, cuts board space in half.
Filter input attenuator module provides transient protection
Product News  
7/15/2008   Post a comment
Designated M-FIAM9, this module enables designers using Vicor's Maxi, Mini, Micro Series 24 V and Maxi Series 28 V DC-DC converters to meet conducted emission/susceptibility per MIL-STD-461E and input transients per MIL-STD-704A/E/F and MIL-STD-1275A/B/D.
Control System Grounding - Part 2: Ground Wiring, Shield Grounds, and Power Supply Grounding
Design How-To  
7/15/2008   Post a comment
Learn more effective grounding techniques for ground wiring, shield grounds, and power supply grounding in Part 2 of this excerpt from the book "Control System Power and Grounding Better Practice."
Solar cars racing across North America
News & Analysis  
7/15/2008   Post a comment
Start you solar engines: The North American Solar Challenge car race from Dallas to Calgary, Canada--over 2,400 miles in 10 days--is under way. So far the University of Michigan's Continuum entry is leading, with Principia College's Ra-7 16 minutes behind.
Solar thermal technology heats up
Design How-To  
7/15/2008   3 comments
Solar thermal technology that attempts to harness the efficient phase change from water to steam is emerging as the preferred alternative energy technology in the race to replace fossil fuels with sustainable energy sources, experts agree.
Motor drivers contain protection and diagnostic functions
Product News  
7/15/2008   Post a comment
Typical midsize automobiles contain around 50 relatively small electric motors and more are being added all the time. Highly integrated, fast-switching motor control ICs with PWM support have the potential to reduce the energy consumption of these devices.
Step-up converter generates output voltage from two AAs or one Li+ battery
Product News  
7/15/2008   Post a comment
Maxim Integrated Products has introduced the MAX8815A 1A step-up converter featuring efficiency of 97%, low quiescent current of 30microamps, and a low-noise, forced-PWM mode.
25V DirectFET chipset optimized for high frequency DC-DC applications
Product News  
7/15/2008   Post a comment
International Rectifier has introduced a 25V synchronous buck converter DirectFET MOSFET chipset for point-of-load (POL) converter designs, and server, high-end desktop and notebook computer applications.
Fuel cells with improved efficiency and for high-temperature operation
News & Analysis  
7/15/2008   Post a comment
SFC Smart Fuel Cell, supplier of fuel cell products for mobile and off-grid power applications, has achieved fuel cell improvements in energy density to 1,580Wh per kg fuel and high-temperature operation at +55°C.
Low-cost DC power supplies tout features typical of costly models
Product News  
7/14/2008   Post a comment
Agilent Technologies Inc. has introduced the U8000 series single-output, non-programmable DC power supplies, a low-cost expansion of its Agilent E3600 series.
Film capacitor delivers dc filtering up to 1200 Vdc
Product News  
7/14/2008   Post a comment
Cornell Dubilier Electronics has introduced its Type 947C high-current, medium-power film capacitor for dc filtering to 1200 Vdc.
On Semi forms power management R&D center in Ireland
News & Analysis  
7/14/2008   Post a comment
Mary Coughlan, the Irish government's Minister for Enterprise, Trade and Employment announced Monday (July 14) that On Semiconductor (Phoenix, Ariz.) is planning to establish an R&D center at Raheen Business Park, Limerick, with government support, which will create 49 jobs for semiconductor designers and engineers.
IMEC develops thin wafers for silicon solar cells
News & Analysis  
7/14/2008   Post a comment
Research institute IMEC vzw has said it is developing a method to produce 50 micron thick crystalline silicon wafers for use in solar cells.
Instrumentation amplifier improves accuracy, extends battery life
Product News  
7/14/2008   Post a comment
Texas Instruments has claimed the industry's lowest power zero-drift instrumentation amplifier that features low quiescent current, low input bias current, low offset voltage/drift and 1.8-V operation.
Powering a Blog frenzy
Power Management DesignLine Blog  
7/14/2008   Post a comment
Battery performance seems to be one of the main reasons why some people have second thoughts about getting a 3G smartphone.
Design a laser-diode driver for range finder applications
Design How-To  
7/14/2008   Post a comment
This circuit manages the special drive needs of laser diodes used in range finder designs
European suppliers score big in 3G iPhone
News & Analysis  
7/14/2008   Post a comment
European suppliers scored big wins in the 3G version of Apple's iPhone according to the first teardowns from Portelligent and Semiconductor Insights, as well as sister website TechInsights.
Nanoelectrodes boost electrolysis to cut hydrogen fuel cost
Design How-To  
7/14/2008   2 comments
QuantumSphere's nanoparticle-coated electrodes boost electrolysis by 300 percent and could enable consumers to refill their hydrogen fuel-cell cars in the garage.
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