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Showing posts with label power. Show all posts
Showing posts with label power. Show all posts

06 September 2009

Solar Cell for Charging iPods and iPhones


It seems that Apple gadget users have a new way of charging iPods and iPhones with the sun, thanks to the latest Think of Novo. The company issued Surge solar skin with an integrated solar cell can charge the Apple devices to 100% solar energy.

As for the strength, the company says that 2 hours of direct exposure to the sun provides approximately 30 minutes talk time on 3G networks or 60 minutes talk time on 2G networks, and the battery stores the skin of 120% of the capacity of the iPhone 3G.

It also comes with a solar-Planner application that helps you assess your needs Sun to fully charge your gadget, you can remove the guess how many hours of daylight you need to get full bars.

A convenient way to gadgets grid - or at least it will be. This is not all on the market. But at the end of this month, you will be able to to pick up for $ 70. A bit expensive, yes, but not too bad for a solar charger specifically to fit and protect your device and power.

26 August 2009

Vishay - Power MOSFET N-Channel SiE876DF Device Power Control Circuits

A power MOSFET with the industry at the lowest resistance for a 60V device in a package with double-sided cooling is released by Vishay. The SiE876DF news, which comes in an SO-8 format PolarPAK package offers maximum resistance of 6.1 milliohms at 10V gate drive, an improvement of 13% in the next device gives the best comparable market society.

The n-channel SiE876DF is for the supply of industrial type power control circuits of motors, AC / DC for the servers and routers, and systems that use point of load (POL) Power Conversion. It is likely to be used as a switch on the primary side or secondary side rectification in higher education conversion of the intermediate bus voltage (CBI) designs.

In each of these applications the low resistance SiE876DF result in lower conduction losses and thus save energy. Besides the low conduction losses, which are TrenchFET silicon, double the cooling by the PolarPAK package enables better thermal performance for high current applications. This makes cooperation with a lower junction temperature. The lead frame PolarPAK based, encapsulated design also offers increased protection and reliability, in addition to simplification of production, because death is not exposed. The device has the same format as the other PolarPAK devices with drain-source voltage of less than 150 V, thus simplifying the PCB design. The SiE876DF is 100% Rg and UIS tested.

Samples and production 60V SiE876DF available, with lead times of 10 to 12 weeks for large orders, the company said.

10 January 2009

2200µF tantalums in low-profile package

AVX - Low-profile 2200µF tantalums in low-profile packageA new high capacity PulseCap tantalum capacitor in a low profile package, was introduced by AVX. The capacitors are designed for applications such as PCMCIA / Wireless USB cards express bulk capacity is needed for power of the issuer.

The large case tantalum products listed at 2200F (2.2mF) / 6.3V. A maximum of 2 mm height of the cases makes them ideal for smaller applications. The extinction undertab style, where the "J" are replaced by the excellent dismissal led outside the perimeter of the case, the increase in volumetric EFFICIENCY parties and can be placed on the foot, so important economies of the area.

PulseCap devices are RoHS compliant and can meet up to 3x reflow soldering profile 260C. Operating temperature range is-55c to 125 C. Other applications include wireless data cards sensors and counting, says the company.

"Our new capacitors PulseCap devices complement our BestCap low ESR. Unlike other cases of large size, high capacity devices, where his Pulse Caps surface mount devices are lead-free reflow assembly process. They also have more space on a PCB and offer excellent robustness thrust, "said Thomas Zednicek, technical marketing, AVX.

Waterproof Bluetooth Adapter

Bluetooth wireless connectivity is the latest addition to the family BULGIN USB Buccaneer. Bluetooth Buccaneer is a robust Bluetooth USB adapter is designed to address the limitations of hard-wired USB connections, such as the 5 meter distance limitation and signal isolation problems.
Waterproof Bluetooth Adapter from Bulgin
Waterproof Bluetooth Adapter BulginIn a wireless application of the antenna must be installed in an external position for optimum range, but often the antenna is lacking in strength or integrity of the area.

Bluetooth Buccaneer rated IP68 dust and waterproof connector is designed to withstand the demands of harsh industrial environments, the Bluetooth antenna with electronics company based on cast-UL94V-0 body.

Operating at 2.4 GHz in the industrial, scientific and medical (ISM) band, Class 1 adapter, PX0880 / 1, a working range up to 100 meters, depending on local conditions. The lower power Class 2 adapter, PX0880 / 2, has a range up to 25m.

The panel mount mating connector PX0842 / A, a Type A USB connection, so that the Bluetooth adapter module to be temporarily removed while standard USB cable or USB memory sticks are used.

Full software drivers and utilities can be downloaded for free from the website BULGIN, although the most popular plug-and-play operating system automatically recognizes the card.

Bluetooth Buccaneer will find many applications in industrial control, where water and dust may be present, and a strong, robust and secure wireless connection between computers and peripherals.

Comprehensive Range of Fuses and Cut-Off Devices

Easby - Comprehensive range of fuses and cut-off devicesOffering a wide range of glass pipes and ceramic fuses, micro fuses, SMD fuses, fuse POWER Cutoff thermal devices, Easby said he was designated as the first European distributor of Hollyfuse, Asia's leading manufacturer of fuses.

Easby initially, the storage of the 50F series, a low-cut glass tube fuse (Quick Acting), the series 50T, a low-cut glass tube fuse (time) and 5RT leyden radial micro fuse (Time-Lag) and will also Easby stock a range of clips and assembly holders Hollyfuse too.

Sharon Cheng, director of "Holy Land" commented, "We are convinced that Easby can offer excellent service and rapid assistance to potential customers products Holly. His team of professionals committed to work with us to help our customers succeed."

Wireless Modules Available In Three Bands

The latest wireless modules to be released by Low Power Radio Solutions comprise a range of transmitter and receiver modules that operate in the 433, 868 and 914MHz bands. These industry standard SIL packaged radio modules offer high sensitivity and good range performance in excess of 300m.

Form Fit and Function Compatible Wireless Modules Available In Three BandsThe 400 series modules operate at the popular 433.92MHz frequency, and offer data transfer up to 40K bps. Providing designers with more options and access to wider, international, markets the 800 range of modules offers frequencies of 868.45MHz, 869.85MHz and for use in the USA 914.5MHz.

The modules may be specified to operate from supply voltages of either 3VDC or 5VDC and they feature low power consumption, transmitter typically 8mA @ 5v or 6mA @ 3v and receiver 9.5mA. With high sensitivity, typically 112dBm and a power output of 10mW, +10dB these modules are ideal for medium range applications. They feature RSSI and carrier detect outputs, are ETSI 300-220 compliant and have dimensions of: TX - 31 x 13 x 3mm and RX- 48 x 17 x 5mm

Barry Gillibrand, Managing Director of LPRS comments, “These new wireless modules are a valuable addition to our product range. They offer form, fit and function compatibility with many existing modules in use worldwide and are now available from stock at LPRS. We know the problems our customers have faced buying wireless modules from non-specialist suppliers, we can offer a high level of technical support and ensure new designs get to market in the shortest possible time.”

Typical applications for the 400 and 800 series wireless modules include industrial monitoring and control systems, alarm and security systems and communications systems. Full details, price information and electronic ordering may be found on the LPRS web site www.lprs.co.uk or call 01993 709418 to request a data sheetThe latest wireless modules to be released by Low Power Radio solutions include a range of modules of the transmitter and receiver in the 433, 868 and 914MHz bands. This industry standard SIL packaged radio modules offer a high sensitivity and a good range of benefits than 300m.

Form and function Fit Compatible Wireless Modules offered in three BandsThe 400 modules run on the popular 433.92MHz frequency, and enables the transfer of data to 40K bps. Give designers more options and access to a wider and more international markets in the range of 800 modules, the frequency of 868.45MHz, 869.85MHz and for use in the United States 914.5MHz.

The modules can be specified for the operation of Supply voltages either 5VDC or 3VDC and they have a low power transmitter typically 8mA @ 6mA @ 5V or 3V and receiver 9.5mA. With a high sensitivity, typically 112dBm and a power of 10 mW, 10 dB, these modules are ideal for medium-range applications. They RSSI and carrier detect products ETSI 300-220 compliant and have dimensions of: TX - 31 x 13 x 3 mm and RX-48 x 17 x 5mm

Barry Gillibrand, Managing Director of LPRS comments: "This new wireless modules are an important addition to our range of products. They have the shape, form and function compatibility with many of the modules used worldwide and are now available in stock at LPRS. We know the problems of our customers are faced with the purchase of wireless modules for non-specialist suppliers, we offer a high level of technical support and new models on the market as soon as possible. "

Typical applications for the 400 and 800 series of wireless modules for industrial monitoring and control, alarm and security systems and communication systems. More details, pricing information and electronic May are available on the website of LPRS www.lprs.co.uk or call 01993 709418 to request a safety data sheet.

1A Protected High-Side Load Switch in Compact TSC75

Vishay - 1A protected high-side load switch in compact TSC75-6 packageExpanding its family of the current limit of tax and the introduction of a new high of protection device has been announced by Vishay. The load switch can operate under a supply voltage range of 2.4V to 5.5V and a handful exit 1A.
The SiP4613A / B is designed for switching applications, including charging the battery switching, USB peripheral ports, hot swap, and other uses of power in laptops, PDAs, laptops and other electronic devices.

A defining the par l'utilisateur limiter le niveau actuel protégé l'entrée de tension d'alimentation de la charge excessive des courants qui peuvent causer une défaillance du système. To report a fault current CL pin will be low when the device is used in a limited state. In the stop mode, SiP4613A / B reduces the supply current to less than 1μA.
In addition to the current limit, the SiP4613A / B is protected by undervoltage lockout period and thermal shutdown. The temperature protection circuit prevents thermal runaway by turning off the switch at the intersection of the chip temperature reaches 165 C and the temperature falls below 145 C.

The opportunity to selectively turn on and shut down various system functions, and can switch between sources of supply, there are two versions of the diet. The SiP4613A has a low, so that input, while SiP4613B a high input. Available in lead (Pb)-free 6-pin package PowerPak TSC75-6, the device operates within the temperature range of-40C to +85 C, says the company.

Transmitter and Receiver Pair Narrow Band Multi-Channel

RadioMetrix Ltd has launched a new range of narrow-band multi-channel (LMT2 and LMR2) the provision of multi-channel OEM, power conservation, reliable data link. This combination of transmitter and receiver are well suited for low-power broadband when the modules do not have the range, or low-cost multi-channel is needed, but the functionality of the RF.

Narrow-band multi-channel transmitter and receiver pairThe devices can commNarrow band multi-channel transmitter and receiver pairunicate at distances greater than 500 meters (on the proper use of antennas), the publisher of the sport with an output of +10 dBm (10mW) and the receiver sensitivity of - 120dBm (for 12dB SINAD). The transmitter / receiver combination can be configured to operate at a frequency of 433 MHz ISM band (frequency as other alternatives available, including the UK, 458MHz band). Both devices are managed from a 3.1 - 15V supply, the issuer of the current consumption of 34mA and its partners should 20mA. The maximum speed of the data is 5kbp / s for standard versions (a quasi-DC data recovery circuit improves performance with unbalanced information asynchronous).

The LMT2 and LMR2 are fully re-programmable via RS232 interfaces, a total of 32 discrete channels are programmed into the unit (of which 16 can be selected through a parallel port). These modules are suitable for targeting a wide range of tasks, including handheld terminals, equipment for environmental monitoring, barcode scanners, data loggers, data from the vehicle or download industry telemetry and remote access and security high-end systems. The LMT2 has a 33mm x 23mm x 9mm fully screened package, while the counterpart is 45mm x 23mm x 9mm. Both units are compatible pin-out, creating a common layout for one of them. These radios are designed to conform to both EN 300 220-3 and EN 301 489-3 EMC standards.

DC-DC Converters, which feature an ultra-wide 4:1 Input and Provide 50 to 200W of Output Power

CUI Europe - DC-DC converters offer 4:1 input in a rugged chassis-mount package
A new line of rugged DC-DC converters with a high 4:1 and 50 to 200W of power, was introduced by CUI Europe.

The chassis for installation are included in an aluminum enclosure measuring 4.25 x 4 x 1.5 cm and is equipped with a heat sink to improve thermal performance. VHK The series is seen as ideal for a variety of communication and industrial applications where robust is needed.

Users can choose from a range of input from 9 to 36VDC or 72VDC and 18 to output voltage of 3.3, 5, 12, 15, 24 or 48DC. The range of the standard operating temperature is-40C 85c, 50W with the operational model 60C under convection-cooled conditions. Security features include serial VHK most temperature, input transient and short circuit protection.

Additional features include high efficiency, fast transient response remote sense, remote on / off, says the company.

08 January 2009

Mini-USB AC-DC Power Adapters

Emerson Network Power Expands Portfolio of Mini-USB AC-DC Power AdaptersEmerson Network Power has its line of serial DCH3 Wall mount AC-DC power adapter with the addition of four new models (DCH3-050XX-004) which are equipped with the results to support cable less removable USB Mini / Micro - USB 2.0 output cables. This compact power adapters have a small size and are intended to be worn by consumers of portable electronic devices - such as PDAs, digital cameras and mobile phones - a 5 V power supply and the use of the Mini-USB connectors for their contributions .

DCH3 Series AC-DC power adapter, universal feature 100 to 254 Vac inputs offered in four models (U.S., EU, UK and has recently introduced models AU), each configured with the input to accept the different regions of the world they are intended to be used. Moreover, all four adapters generate regulated 5V output with an output of 3 watts and meet the strict Energy Star standards for efficiency level IV.

The series offers comprehensive protection against overvoltage and short circuit, and built in EMI filtering and safety approvals, including UL/cUL60950-1 and EN60950-1 VDE. The flexibility of the serial adapter also supports a wide range of ambient operating temperatures of 0 to 45 degrees Celsius, a best-in-class ground maximum leakage current of 10 microamperes and a voltage / current output.

06 January 2009

Voltage Regulator Enhances Control and Improves Efficiency from Ericsson

Voltage Regulator Enhances Control and Improves Efficiency from EricssonA digital, non-isolated voltage regulator estimated at 40A, the BMR451, was announced by Ericsson power modules. After the recent publication BMR450 rated 20A, the new device has a high density of the current 7.90A/cm3 (129A/in3)

Thanks to its high power density and flexibility offered by the different functions integrated into the product, and offering the possibility to monitor the vital signs through the open standard PMBus interface, BMR451 adapted to a wide range of applications in information and communication technology - but is not limited to these two questions.

The BMR451 be adapted to new uses or applications to be upgraded to reduce energy consumption, and / or migration of passive energy for the active monitoring of energy use and management. Since the mid-bus architecture is not limited to ICT applications, because of its high power density and low profile (less than 8.5mm), the BMR451 is regarded as an ideal product for all applications space was Card and a good thermal performance are critical interest, such as in industrial process control, seal the box, test equipment or transportation applications. The small voltage regulators are easier to find close to FPGA, DSP and other processors, making the power failure and parasitic inductance issues.

Factors behind the need for this type of product are reducing consumption of energy produced by improving efficiency, but also the requirement of designers permanent access to strategic information of all the chain of service, the front-end of the rectifier loading point.

In comparison with existing products, Ericsson BMR451 offers an unparalleled level of functions (reading data back) via the open standard interface, PMBus. For system designers and architects, through PMBus access to strategic information, such as tax, the state of the load, temperature, the voltage differences, and many other parameters can Follow-level functions, without adding external components or circuitry.

In addition to cost savings and simplicity, resulting in fewer external components and embedded control, system architects now have the chance to follow through the power of each voltage regulator, perform low-level functions.

The PMBus read mode compatible BMR451 as 30.85mm x 20mm x 8.2mm, offers a 4.5V to 14V input voltage range, a 0.6 V to 3.6 V output voltage range and a 2.6 million hours MTBF figure. Through hole and surface mount versions are available.

Another important advantage of a digital controller is the ability for users to purchase pre-made modules that fit their applications ", such requirement ramp-up time, output voltage, alarms, etc. BMR451 also has a full range of standard features such as remote on / off, over temperature protection, output / voltage greater protection, input under-voltage protection and control Remote monitoring can be used to control redundancy.

The BMR451 has a "unique" serial number that refers to its chipset. This provides an unprecedented degree of traceability and the simplification of the administration party identification when performing diagnostics on board during the entire lifetime of the final equipment, says the company.

"It is with great pride, and with great appreciation for our development team worked from basic research through production of commercial products, as we launch 40A, digital BMR451," said Patrick Le Fèvre, marketing and communications Power Modules. "With this product, in combination with the recently released BMR450 rated 20A, and our success PMBus compliant 400W quarter-brick isolated BMR453 we are now allowing customers to a new era of applications that are optimized for energy efficiency, which unprecedented degree of flexibility to monitor and control through the open standard PMBus, low-energy component".

New 16-Channel LED controller IC for LCD TV from Austriamicrosystems

New 16-Channel LED controller IC for LCD TV from AustriamicrosystemsThe expansion of its portfolio of specialized LED drivers and controllers of the newest generation of LCD TV backlight, the AS3693B 16-channel LED controller IC bee announced by austriamicrosystems.

Innovation AS3693B LED controller IC helps build very flat LCD TV with the greatest possible contrast ratio, resulting in better image quality. The concept of external effects and patented technology for saving energy that actively regulates the power to reduce energy loss in the system. This makes it very flat screen models as possible and allows the creation of highly energy-efficient solutions TV. The AS3693B LED controller IC is specifically designed to synchronize with the picture perfect LCD and LED backlight unit to achieve so-called "control block graduation for exceptional image quality.

The AS3693B high precision LED controller IC manages 16 LED cinnamon, each with an accuracy of the current 0.5%. This is by far the best performance in the industry today, says the company. The high degree of accuracy possible is the exact color and control the brightness of the LCD backlight currently available. In addition, new features, such as hand PWM "create entirely new possibilities LED control different segments of the backlight unit.

"We developed the AS3693B, our latest LED backlighting solution, in close cooperation with our OEM partners in the LCD screen to the latest features, such as reverse PWM on the market as soon as possible. We are proud to the innovator's position in this booming market with new central concepts of economics and outstanding overall system performance, "said Markus Luidolt, marketing director of LED backlight drivers, austriamicrosystems.

Audio Codec Integrates Class-D Amplifier for Portable Devices

Audio Codec Integrates Class-D Amplifier for Portable DevicesA new low-power stereo audio codec, Texas Instruments (TI) can play CD-quality and extends battery life in portable products such as mobile phones, portable navigation devices and portable media players.

The codec TLV320AIC3107 includes a stereo headphone amplifier and Class D mono speaker amplifier a significant reduction of the area and the cost of 20 percent compared with discrete solutions. The device is available in a space-saving 5mm x 5 mm QFN-40 package, says the company.

IHLP Inductors is Now Available on the Vishay web site

IHLP Inductors is Now Available on the Vishay web siteOne of the first free web-based tool that calculates the switching losses for IHLP inductors is now available on the website of Vishay. The user switching loss calculator is adapted for individual applications, so that designers and select the right part for an optimized board, while the acceleration of the market. The loss switching calculator is available for money, encourage and Buck / DC-DC converter topologies strengthen.

For the calculation of the inductance losses in the past, designers was to the complex equation by hand Steinmetz, a long process that increases the risk of human error. With the loss calculator designers just in the input and output voltage, frequency, output current, and temperature for its application. With the selection of an inductance value, ranging from 0.1μH to 10μH, the calculator provides immediate results for copper, core and total losses with rising temperature of the estimated inducer. The good Vishay IHLP room number is also displayed for the designer of the reference.

The calculator is usable for all applications IHLP inducer, including the Voltage Regulator Module (VRM) and DC-to-DC converter applications in end products, such as next generation mobile phones, laptops, desktops, servers, graphic cards, video games , Portable navigation systems, personal multimedia devices, systems and low-profile, high current power supplies and point of load (POL) converters, distributed energy systems, and field programmable gate (FPGA), says the company.

05 January 2009

Space Saving DC-DC Switching Mode Regulator in Tiny Package from ACAL Technology

ASpace Saving DC-DC Switching Mode Regulator in Tiny Package from ACAL TechnologyA DC-DC uModule regulator point of load (POL) system with on-board inductor and power components is now offered by ACAL technology. The Linear Technology LTM8021 operates from input supplies 3V to 36V (40V maximum) and provides up to 500 mA.

The LTM8021 small footprint (6.25mm x 11.25mm), low-profile (2.8mm) and lightweight (0.49g), enable system designers to solder the device on the back of the circuit board, creating the room above digital circuits Such as FPGA's, memory and obligations, including HDMI, Ethernet or SMA connectors.

The LTM8021 includes a DC-DC controller IC, power switches, inductor, compensation circuitry and input and output bypass capacitors. The design is so simple as a linear regulator and has the advantage of less heat generation and smaller size. Target applications are systems with 5V, 12V, 24V and 28V rails supply of raw materials, such as medical, industrial, electronic and after-market car.

The LTM8021 regulates an output voltage of 0.8-5V, which is controlled by a single resistor. Encapsulated packaging protects the circuit components against mechanical, chemical and environmental factors, thus improving the reliability of the solution. The LTM8021 is rated for operation from-40C to 85c and is RoHS compliant, although the gold pads the use of leaded and lead-free solders during board, said the company.

New 160W High Power Density AC to DC Switching Mode Power Supplies from Gresham

New 160W High Power Density AC to DC Switching Mode Power Supplies from GreshamThe new series of HD160S high power density AC-DC power supplies pass mode was announced by Gresham Power Electronics.

The series HD160S proceed to 160W, approximately twice the power currently available in standard 51mm x 102mm footprint. The supplies are regarded as ideal for a low profile, 1U height, request that their height is only 27mm. The series uses the latest technology and design of switching topologies to deliver operational efficiency to 90% with a power density of more than 18W/in3, setting the standard low and midrange Power Products, says the company.

The single output power supplies offer output voltage of 5, 12, 24 and 48VDC. Other features include universal AC input (85 to 264VAC), Active Power Factor Correction (EN61000-3-2 Class D compliant) and protection against the temperature, more current and voltage. Safety Agency approvals, equipment, information technology (ATI), UL/cUL60950-1 / EN60950-1, Medical (UL / cUL 60601-1 / EN60601-1) and all models are CE-mark (DBT) and comply with the FCC / EN55022 Level B emission standards. The HD160S series offers reliable performance, high MTBF and is RoHS compliant.

Jake Moir, CEO of Gresham Power, said: "We are very pleased to offer our customers a high density Power Conversion in one of the smallest footprint in the industry. This will benefit our customers by reducing the space required to power conversion, which enable them to the functionality of their own products. "

The HD160S series is regarded as ideal for a wide range of applications, including bulk power front-end for distributed power architecture (DPA or IBA) in the telecom, industrial, military COTS, medical and scientific equipment.

30 December 2008

International Rectifier - New range of industrial trench HEXFET power MOSFETs

International Rectifier - New range of industrial trench HEXFET power MOSFETsA new range of trench HEXFET power MOSFETs has been unveiled by International Rectifier. The devices feature low baseline state resistance (RDS (ON)) in an A-247 packages for synchronous recovery, and active ORing including industrial applications of high power DC motors, DC to AC inverters and power tools.

The new MOSFETs feature improved up to 50 per cent in RDS (on) on competing devices, eliminating the need for large, costly packages typically used in industrial applications, and cutting overall system cost. In addition, the low RDS (on) results in lower conduction losses and improving the efficiency of the system.

The superior RDS (ON) noted that family to enable designers to reduce system cost by almost 50 percent in avoiding large and expensive isotopes or mini BLOCK packages typically required to dissipate heat in industrial applications.

The new family of N-channel MOSFETs provide a voltage range from 40V to 200V. The devices are qualified industrial grade and moisture sensitivity level 1 (MSL1). The new MOSFETs are available and are lead-free RoHS compliant, says the company.

23 December 2008

NVIDIA Preparing GT300 Next Graphics Processor Early 2009?

The NVIDIA GeForce GTX 320 and NVIDIA GeForce GTX 350 will have 25-45% faster core frequencies and will consume 15-30% less Power.

Specifications for the Nvidia GeForce GTX 320 graphics processor (GPU):
  • NVIDIA GeForce GTX 320
  • GT300 core
  • 55nm technology
  • 386 sq.mm die area
  • 512bit GDDR5 memory controller
  • GDDR5 2GB memory, doubled GTX280
  • 480 stream processors
  • Grating operation units are 64 the same with GTX280
  • 227 GB/s memory bandwidth
  • Default clock speeds of core: 830MHz, shader: 2075 MHz, memory: 3360MHz (effective)
  • Pixel fill-rate 48.3G pixels/s
  • Texture fill-rate 114.4Gpixels/s
  • Support DirectX 11.

Specifications for the Nvdia GeForce GTX 350 graphics processor (GPU):
  • NVIDIA GeForce GTX 350
  • GT300 core
  • 55nm technology
  • 386 sq.mm die area
  • 640bit GDDR5 memory controller
  • GDDR5 2GB memory, doubled GTX280
  • 640 stream processors
  • Grating operation units are 64 the same with GTX280
  • 246 GB/s memory bandwidth
  • Default clock speeds of core: 900MHz, shader: 2255 MHz, memory: 3660MHz (effective)
  • Pixel fill-rate 54.2G pixels/s
  • Texture fill-rate 136.8Gpixels/s
  • Support DirectX 11.
According to some rumor , the production of the following generation graphic chips NVIDIA, known under the code name GT300, will take place already in the first quarter of the following year. Let us recall, that the development cycle of these solutions must be completed only in the fourth quarter 200

15 December 2008

TDK-Lambda - First 1000W AC/DC power bricks unveiled

TDK-Lambda - First 1000W AC/DC power bricks unveiledAdding more functionality to its PFE range of AC/DC MEGA-brick POWER supplies, TDK-Lambda has introduced the 1000W PFE-F Series.

Like the existing lower power PFE modules, the PFE1000F combines the AC to HVDC front-end with DC-DC converter into a single module. In addition the baseplate cooled design greatly simplifies the thermal design of the equipment in which they are used. PFE modules satisfy the increasing requirement for fanless high power, especially for outdoor electronics when suitably enclosed.

Up to six PFE1000F units can be operated in parallel, achieving outputs of up to 5.1kW. For use in high reliability equipment, N+1 redundant parallel operation is possible. Space savings of 25% are possible with PFE applications compared to previous generation solutions that utilised a two stage AC/DC front end module and DC-DC backend module. Typical markets include industrial, high end ATE, quasi military, traffic signs and cellular infrastructure approach.

Models in the fully-regulated PFE1000F series are available in 12, 28 and 48V nominal outputs and can be adjusted ±20%. The 12V versions deliver 720W with a maximum baseplate temperature of 100C, while the 28V and 48V models provide 1008W.

All versions have a wide-range AC input that allows operation from any voltage between 85V and 265V at 47Hz to 63Hz. As standard, they incorporate active power factor correction and input-to-output isolation of 3000VAC for one minute. Over-voltage, over-current and over-temperature protections are also included.

The PFE1000F Series also has additional features such as remote ON/OFF control, inverter operation good (IOG) signal and an auxiliary power supply for external signals (nominal 12V/20mA). In addition, specific to the telecoms equipment market specifications, the PFE1000F features enhanced circuitry to improve lightning surge withstand capability up to 6kV when installed using recommended reference design.

The PFE1000F comes in 100mm x 13.4mm x 160mm package and can be conduction cooled with a cold-plate or forced cooled with a heatsink. All PFE1000F Series products conform to IEC/EN/UL/CSA 60950-1 safety approvals for general purpose applications. In addition, the units carry the CE mark according to the LV Directive, says the company.

ON Semi - Industry’s highest power integrated Power over Ethernet power device

ON Semi - Industry’s highest power integrated Power over Ethernet power deviceAvailability of the NCP1082 and NCP1083, two new members of its POWER over Ethernet (PoE) product family, has been announced by ON Semiconductor.

The NCP1083 joins the NCP1081 as the industry’s highest power integrated Power over Ethernet Power Device (PoE-PD) supporting extended power ranges up to 40W of regulated power delivered to the application load in a 2-pair configuration, says the company.

The NCP1083 is also capable of providing power via an auxiliary parallel supply. Both NCP1082 and NCP1083 fully support the IEEE 802.3af standard and the NCP1083 enables the latest draft IEEE 802.3at (D3.0) standard including two event physical layer classification. Typical applications targeted by NCP1082 and NCP1083 include VoIP phones, WIRELESS access points, industrial Ethernet I/O modules, programmable logic controllers (PLCs), pan-tilt-zoom (PTZ) and dome security cameras, and other applications that require an auxiliary supply.

The NCP1082/3 support normal PoE operation when power is available on the Ethernet cable. In the event Ethernet power is not available, the device accepts an auxiliary supply input to power the application. This approach eliminates the need for a second DC-DC converter and therefore drastically reduces the bill of materials. The new devices support a wide range of external input voltages from 9V to 57V. ON Semiconductor’s integrated NCP1082/3 PoE-PD devices are pin-compatible with the company’s existing NCP1080/1 PoE-PD devices in the TSSOP-EP 20 pin package. Pin compatibility allows the customer to easily mix-and-match different PoE capabilities on different platforms.

The NCP1082/3 exploits ON Semiconductor’s automotive qualified high-voltage SmartPower process to provide superior cable ESD and surge protection levels compared to other integrated PD and DC-DC converter controllers. Low on-resistance (Ron) and extended temperature range from -40C to 85C with full operation up to 150C junction temperature allows the NCP1082/3 to achieve record power levels while operating in harsh environments.

“The auxiliary supply capability facilitates the transition from traditional power sources to Power over Ethernet” said Koen Geirnaert, ON Semiconductor’s PoE-PD product marketing manager. “Combined with the high power capability this feature enables a broad range of applications”

The devices' integrated DC-DC converter controller facilitates the implementation of popular and proven single-ended power supply topologies such as fly-back, buck and forward CONVERTERS for both configurations and uses a control scheme based on peak current control. The controllers have all the features needed for a flexible, robust and highly efficient design, including programmable frequency, slope compensation and soft startup, says the company.