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posted in December 2004
The Beginning of the Mega Solar Age
Product News  
12/29/2004   Post a comment
Kyocera announces the development of a large-scale solar module with 200-watt output capability. The company says it is ideally geared for large-scale solar electric generating systems of 100 kilowatts (kW) or greater.
POLs stress cost-performance edge for distributed power
Product News  
12/29/2004   Post a comment
V-Infinity's new VPOL series of DC/DC point-of-load (POL) converters point to their high efficiency (up to 94 percent in the 5 volt models) and low cost (priced starting at $10 each in OEM quantities) for a range of distributed power architecture applications. They're available in 5-, 15-, and 16-amp versions with single outputs from 0.75 to 5 volts.
Half-brick for PoE touts high efficiency
Product News  
12/28/2004   Post a comment
Touting high efficiency— 92.5 percent at full load—Advanced Power Conversion's H201 series DC/DC converter complies with the IEEE 802.3af standard to deliver 200 watts at a regulated 52.5 volts (nominal 48-V input) for Power-over-Ethernet (PoE) applications.
High-rail DC/DC serves the trainway
Product News  
12/22/2004   Post a comment
Absopulse Electronics' HVI 109-WR-TX DC/DC power supply is designed for the railway and harsh industrial environments. Running off a wide-range, high-voltage input (400 to 800 VDC), it delivers 4 amps at a regulated, adjustable 24 volts VDC (floating output, either terminal can be grounded). It's rated for operation over -40 to +50°C.
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.
The first P-channel FET for low-power DC/DC conversion
Product News  
12/20/2004   Post a comment
Philips Semiconductor introduces a P-Channel FET in a microTrench MOS. Supplied in the industry-standard SOT23 package, the 20 V PMV65XP brings the μTrenchMOS blend of performance and small size to the P channel.
Tunneling FETs enable scalable ultra-low voltage processes in standard silicon technology
News & Analysis  
12/20/2004   Post a comment
Infineon says that for the first time ever, complementary Tunneling Field Effect Transistors (TFETs) are fabricated in a standard silicon process with good performance for static and dynamic parameters.
When Discrete Components are not Enough
Design How-To  
12/20/2004   Post a comment
Die-on-leadframe (DOL) packaging is competitive with power modules using discrete components and offers improved thermal and electrical performance.
AC/DC supply delivers powerful prescription
Product News  
12/18/2004   Post a comment
Power-One characterizes its HPF5A2AFAFH6 AC/DC power supply as a unique product for medical laboratory and industrial applications. The high-power (1200-watt) supply features a ruggedized input, four fully regulated and isolated outputs, and a modular architecture that provides a variety of migration paths.
XPiQ extends eighth-bricks to the intermediate bus
Product News  
12/17/2004   Post a comment
XPiQ's KIE014, the company's first in a series of eighth-bricks suitable for the intermediate-bus, delivers 12 volts at up to 14 amps (from a nominal 48-V input) to power point-of-load (POL) modules. This DC/DC bus converter, complementing XPiQ's earlier release of its KHE030 eighth-brick family for basic datacom/telecom applications (1.2 to 5 volts output at up to 30 amps), uses a proprietary IC driver within a smart DC transformer for high efficiency (94 percent) and high reliability (MTBF of
Richardson acquires assets of China power components supplier
News & Analysis  
12/17/2004   Post a comment
Richardson Electronics Ltd. has acquired the assets of Evergreen Trading Co. Ltd., a China-based distributor of power components.
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.
Sharp to bolster solar cell production
News & Analysis  
12/16/2004   Post a comment
Sharp Corp. has announced it will expand its solar cell production lines at its Katsuragi Plant in Nara Prefecture to cope with burgeoning demand for solar power both in Japan and abroad.
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.
Developing Analytical Equations for Determining Power MOSFET Switching Transients
Design How-To  
12/15/2004   Post a comment
If you read only one article about power MOSFETs, this is the one you should read. It explains the switching behavior of power MOSFETs in practical application circuits and shows you how to choose the right device for the application using the specifications typically provided on manufacturer datasheets.
Charge pump uses high fixed switching frequency, saves space
Product News  
12/14/2004   Post a comment
AnalogicTech offers the AAT3119 fixed frequency, high efficiency charge pump. It's optimized for battery-powered portable applications and is used with ultra-small 1 microfarad capacitors.
Where, Oh Where, Has the 42V Promise Gone?
Design How-To  
12/14/2004   Post a comment
What kept 42V systems from becoming widspread--so far?
Developing Analytical Equations for Determining Power MOSFET Switching Transients
Design How-To  
12/13/2004   Post a comment
If you read only one article about power MOSFETs, this is the one you should read. It explains the switching behavior of power MOSFETs in practical application circuits and shows you how to choose the right device for the application using the specifications typically provided on manufacturer datasheets.
Power-One to license converter technology to C&D
News & Analysis  
12/13/2004   Post a comment
Power-One Inc. (Camarillo, Calif.) announced Monday (Dec. 13) it has agreed to license its Digital Intermediate Bus Architecture (IBA) technology to C&D Technologies Power Electronics Division for its power conversion products.
2 kW front-end readies for advanced SSI applications
Product News  
12/13/2004   Post a comment
Anticipating next-generation server system infrastructure (SSI) requirements, Cherokee International's DPS2000 (AC/DC) front-end delivers 2000 watts at 48 volts for high-end blade servers and storage and network equipment. That's more than 60 percent more power in a 2U package than the company's previous 1200-watt product, and the DPS2000 can also deliver 1 kW from a low-line (110 VAC) input.
Shielded DC modules cover low-power industrial range
Product News  
12/12/2004   Post a comment
Lambda's single-, dual- and triple-output DC/DC converters in the PXD, PXE and PXF series for industrial applications feature a six-sided, shielded metal case that reduces radiated noise to meet EN55022 Level A specifications. They include models with a 4:1 input range to enhance system flexiblity.
600-W supply most powerful for PoE
Product News  
12/11/2004   Post a comment
Power-One promotes its PALS600-2482 AC/DC supply, at 600 watts, as the industry's most powerful standard product specifically designed for Power-over-Ethernet applications and associated appliances such as IP phones and remote access devices.
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.
DirectFET MOSFET supports high-efficiency, high-performance amplifiers
Product News  
12/10/2004   Post a comment
International Rectifier, introduced the IRF6665 DirectFET MOSFET 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 package type introduced for rectifier and transient voltage suppressor
Product News  
12/10/2004   Post a comment
Vishay introduced a new package type for its rectifier and transient voltage suppressor products and delivers the same current and power ratings as the SMA package in a 44% smaller footprint.
Inductors serve as high-performing, space- and power-saving solutions for VRM
Product News  
12/10/2004   Post a comment
Vishay added two new members to its line of low-profile, high-current inductors. The new inductors serve as space- and power-saving solutions for voltage regulator module and dc-to-dc converter applications.
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.
Synchronous buck regulator is Intel xScale Power Manager in QFN package
Product News  
12/8/2004   Post a comment
Linear Technology Corporation announces the LTC3445, a compact, high efficiency xScale microprocessor power supply in a 4mm x 4mm QFN package. The synchronous buck regulator can deliver up to 600mA of output current with efficiencies of up to 93%.
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.
NSF renews funding for power electronics research
News & Analysis  
12/8/2004   Post a comment
Virginia Tech said the National Science Foundation has renewed funding for its Center for Power Electronics.
TDK adds 200-W quarter bricks
Product News  
12/7/2004   Post a comment
TDK Innoveta's Supereta iQM Series of quarter-brick DC/DC converters now include 12-volt, 18-amp and 5-volt, 35-amp models for expanded intermediate-bus applications. Touting high usable power, tight regulation, and high reliability in harsh environments, the converters feature an insulated metal substrate (IMS) for superior thermal performance. The 12-volt, 18-amp model delivers 13 amps at 60°C for 300 lfm cooling (no heatsink), and the 5-volt, 35-amp model provides 30 amps (same conditions)
Device reduces unwanted noise in microprocessor-based equipment
Product News  
12/6/2004   Post a comment
The Ground Transient Terminator (GTT) from 9 Corp sets a new standard for electrical transient and surge suppression for electronic equipment.
POLA Alliance embraces PMBus for next generation digitally controlled DC/DC products
Product News  
12/6/2004   Post a comment
The POLA alliance announced today it will jointly design and release products in accordance to the PMBus digital interface and control specification.
Integrated power over Ethernet solution offers four independent ports
Product News  
12/6/2004   Post a comment
The next-generation power management IC from TI simplifies the design of IEEE 802.3af-compliant power source equipment. The quad-port power manager supports operation at -40° to +125° C for a wide range of commercial, industrial and military applications.
Ultracapacitor modules ease integration of alternatives to batteries
Product News  
12/6/2004   Post a comment
Maxwell Technologies introductes 15-volt ultracapacitor packs and modules that provide easy-to-integrate energy storage and power delivery solutions for a wide range of consumer and industrial electronics and transportation applications.
Fast Switching with IGBT Modules
Design How-To  
12/6/2004   Post a comment
Today's passive components, transformer inductors and capacitors are operating in a reduced mechanical size and at higher frequencies. As a result, power applications are forced to work at higher frequencies. Unfortunately, conventional power sources use big and heavy transformers running at 50 or 60Hz. The author tells you what you can do about these diverging demands.
Digital Power, A Manufacturer's View
Design How-To  
12/2/2004   Post a comment
Change is coming to power supplies from the beloved, smooth flowing linear systems to the digital control systems. Has the world gone mad, asks the author. Read why he prefers to think of it as a paradigm shift that computing and motor control is ready to implement.
Half-bricks take the heat
Product News  
12/2/2004   Post a comment
Artesyn Technologies' new high-efficiency half-brick DC/DC converters, the RFB300/350 series, can deliver up to 350 watts continuously without derating over a baseplate temperature of -40 to +100°C. Generating a nominal 12- or 28-VDC output, the converters, in a standard 2.27-by-2.39 inch footprint with choice of 0.4 inch or 0.5 inch profile, are designed primarily for high performance RF power amplifiers and equipment used in compact, high availability applications.
Power in Chicago
Power DesignLine Blog  
12/2/2004   Post a comment
Pithy comments and observations by National Semiconductor's industry veteran, Paul Greenland, while attending the Power Electronics Technology Exhibition and Conference.


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