Three-phase PWM condenses microprocessor designs Product News 12/30/2004 Post a comment International Rectifier's IR3093 is a three-phase interleaved PWM control IC that supports AMD Athlon, AMD Opteron, AMD Athlon64, and Intel VR10.X processors for applications that include desktop computer motherboards, voltage regulator modules, video graphics cards and telecom single-in-line (SIP) modules. It integrates MOSFET gate drivers, reducing parts count by 75 percent as well as solution size over competing devices, according to the company.
Digital Video to Come Alive in 2005 Design How-To 12/28/2004 Post a comment Successful new consumer electronic devices are introduced in concept demonstrations at trade shows. Next they emerge, at high cost, for early adopters. Eventually they proliferate as economies of scale make them affordable to mass market consumers. The decision of which digital video coding standard to adopt for next generation video disks as well as other digital video products under development remains open. In this feature article, Jonah Probell takes a look at digital video and predicts tren
New Circuit Protection Options for Power Electronics News & Analysis 12/27/2004 Post a comment When a fault occurs in a linear transformer or power supply, some of the components may begin to overheat. In the case of the switch mode charger, some of the components that can fail are the magnetics or the switching FETs. A solution to this problem may be to use a polymeric positive temperature coefficient device that can help provide both overcurrent and overtemperature protection in one convenient package. A Raychem engineer offers these insights. (Thanks go to Paul O'Shea at powermanagment
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Embedded Systems: DSPs and MCUs Read from Each Other's Playbook News & Analysis 12/22/2004 Post a comment It's generally conceded that embedded systems will play a dominant role in electronics markets for a long time to come. The PC may have started the digital revolution four decades ago but PCs have now evolved into a mature market. The action for 2005 is in embedded systems of all descriptionsbut most specifically consumer electronics. In this feature article, Jack Shandle takes a look at embedded systems in 2005.
Quad DC/DC brightens display solution Product News 12/21/2004 Post a comment Linear Technology's compact LT1942 incorporates a triple-output supply with built-in power sequencing for thin-film-transistor liquid-crystal displays (TFT-LCDs), as well as a driver for backlighting up to 12 white-LEDs.
Class D MOSFET tuned for improved audio performance Product News 12/21/2004 Post a comment The International Rectifier IRF6665 DirectFET MOSFET is for medium power Class D audio amplifiers. The device parameters are tuned specifically for improved audio performance such as efficiency, total harmonic distortion and power density.
New Circuit Protection Options for Power Electronics Design How-To 12/20/2004 Post a comment When a fault occurs in a linear transformer or power supply, some of the components may begin to overheat. In the case of the switch mode charger, some of the components that can fail are the magnetics or the switching FETs. A solution to this problem may be to use a polymeric positive temperature coefficient device that can help provide both overcurrent and overtemperature protection in one convenient package.
All-in-one regulator cuts costs to the core Product News 12/18/2004 Post a comment Intersil Corporation bills its ISL6568 two-phase PWM controller IC as the industry's smallest all-in-one VID multiphase CPU core regulator. With integrated 3-amp, 5-12 volt MOSFET gate drivers, it claims the highest performance-to-price ratio in the smallest PC board area of any Intel or AMD CPU core voltage regulator available.
2A Step-Up DC/DC Converter for space constrained apps Product News 12/17/2004 Post a comment Linear Technology Corporation announces the LTC3426, a 2 Amp, 6V, 1.2MHz step-up DC/DC converter in a ThinSOT package. The combination of its high efficiency switch and tiny package provides high current boost capability in a very compact form factor, making it ideal for space-constrained applications.
Cirrus Logic lowers guidance, cuts workforce News & Analysis 12/16/2004 Post a comment Cirrus Logic Inc. said Thursday (Dec. 16) it would reduce revenue guidance for the third fiscal 2005 quarter ending Dec. 25 and implement restructuring actions including reducing workforce and reorganizing its business across product lines rather than functions.
60VIN, 3A step-down switching regulator with 100μA quiescent current Product News 12/16/2004 Post a comment Linear Technology Corporation announces the LT3434EFE, a high voltage, Burst Mode step-down switching regulator that maintains quiescent current under 100μA. The LT3434 operates within a VIN range of 3.3V to 60V, making it ideal for load dump and cold-crank conditions found in automotive applications.
White LED driver boosts low-profile apps Product News 12/15/2004 Post a comment Allegro MicroSystems' A8430 and A8431 DC/DC boost converters offer a low-profile solution for driving up to four white LEDs in series from a 2.5-volt supply, or five white LEDs from a 3-volt supply. "Not only does our A8430 QFN-5 drop in to the same footprint as SOT- and TSOT-23-5 packages, but it reduces the profile to just 0.75 mm nominal height," said Mark Gaboriault, strategic marketing director.
Semi suppliers cutting wafer starts, says iSuppli News & Analysis 12/14/2004 Post a comment Lingering excess chip inventories are forcing semiconductor suppliers to cut their wafer starts and reassess their capital spending plans, according to the latest research from iSuppli Corp.'s Semiconductor Inventory Tracker service.
Mini digital signal conditioner monitors noisy environments Product News 12/14/2004 Post a comment Suitable for monitoring multiple industrial stations in noisy environments, Electro Standards Laboratories' CellMite 100 embedded digital signal conditioner offers a unique integrated feature set making it one of the most powerful units in its class, according to the company.
Analog switch focus: cell phone features spur demand for analog switches Product News 12/13/2004 Post a comment This has been a big year for the analog switch market, which has seen demand leap forward as the replacement of discrete components in cell phones accelerated. Such vendors as Analog Devices, Fairchild Semiconductor, Maxim Integrated Products, Siliconix and Texas Instruments have been churning out new switches in response to the feature-hungry demands of the cell phone market.
Power management ICs put it all together Product News 12/10/2004 Post a comment Looking ahead - Advancing in depth and breadth, power management technology made its mark on the system-on-a-chip (SOC) this year, particularly those devices designed for consumer/wireless products. With analog IC expertise the common ground for merging signal and DC/DC power blocks, chip makers keyed heavily on their skills in ultraintegration to gain a competitive edge in expanding and, some say, redefining the power-management landscape for 2005.
MicroFuel Cell receives safety certification Product News 12/10/2004 Post a comment MTI Micro, the developer of award winning Mobion rechargeable portable power technology for handheld electronic devices and a subsidiary of Mechanical Technology announced today that it has received required safety certifications from Underwriter's Laboratories and CSA International.
APEC Texas Style Product News 12/10/2004 Post a comment The Applied Power Electronics conference is in Austin, Texas from March 6 -10, 2005, get the details here.
Switch Mode & Pulse Transformers for Hipot Up to 40 KVAC Product News 12/9/2004 Post a comment The encapsulated Switch Mode and Pulse Transformers for high frequency switching applications, from Bicron, have been specifically designed to meet the high reliability demands for BIL (Basic Impulse Level) ratings at the PCB level found in power management, power control, and power conversion systems.
Just say: Charge It Power DesignLine Blog 12/9/2004 Post a comment Portable power supplies including rechargeable batteries have hit critical mass in our technological society and we now need new ways to keep up and running.
Dish Network Receiver: Analog pulls in the signal Teardown 12/8/2004 Post a comment The man behind the teardowns: From the forthcoming December issue of Planet Analog magazine, David Carey dissects the Dish Network 332 Receiver, finds a number of Broadcom components and good deal of analog. His picture, inside, celebrates another year of Under The Hood on Planet Analog.
The Myth of the Neutral Wire Design How-To 12/8/2004 Post a comment This white paper from American Power Conversion Corp discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, and grounding are addressed. Various myths are described and criticized.
Focus on D/A converters: D/As ride LVDS to gigasample realm Product News 12/8/2004 Post a comment As signal-processing requirements increase in speed and complexity, system designers require data converters that can synthesize high-quality signals at much higher frequencies than ever before. Fujitsu Microelectronics America Inc. and Analog Devices Inc. are meeting these needs using low-voltage differential-signaling (LVDS) inputs to boost sampling rates in digital-to-analog converters. Find out if other companies are building these products.
Industrial semiconductor markets promises 8 percent growth News & Analysis 12/8/2004 Post a comment A Databeans study found that the highest growth was attributed to sensors, followed by digital signal processors, optoelectronics, analog and microcontrollers. Competition is strong in this segment. Leading suppliers include Texas Instruments, STMicroelectronics, Philips Semiconductors, Freescale, and Infineon Technologies.
Chipset delivers end-to-end power management Product News 12/8/2004 Post a comment Potentia Semiconductor's PS-1005 and PS-1006 monitor chips, along with the company's PS-2406 configurable subsystem controller integrate primary- and secondary-side power control to provide significant uptime advantages for 48-volt card level applications. It's the first such set of ICs designed for comprehensive and proactive input-to-output power management, according to Potentia.