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Efficient, 2.5 MHz Synchronous Buck Regulator for Light Load Operation

September 24, 2007 12:52 pm | Product Releases | Comments

Productive Product: Micrel launched the MIC2238, a 2.5 MHz dual 800 mA synchronous buck (step-down) regulator housed in a 3 mm × 3 mm MLF package. Its unique switching architecture scheme, Trickle Mode, enables desirable light load efficiency for Li-Ion battery powered systems that require maximum efficiency in order to prolong use. The MIC2238 is appropriate for portable applications including cellular phones, portable media players, WiMax modules, GPS systems, digital still and video cameras.

Eurocard Rugged Plug-In Inverter

September 24, 2007 6:54 am | Product Releases | Comments

Productive Product: Absopulse Electronics releases its CSI 100-EU series, a 100 VA sine wave inverter in Eurocard plug-in format, measuring 3U × 160 mm × 10 HP. This compact, lightweight design is suitable for modular rack-mount applications in industrial, utility, telecom, mobile and rugged environments. This inverter provides regulated sinusoidal output voltage

Quarter Brick Isolated DC/DC Converters

September 24, 2007 5:34 am | Product Releases | Comments

Productive Product: Lambda introduces its iQE series of quarter brick 100W to 200W isolated DC DC converters that have high operating efficiencies over a wide range of load conditions. Typical efficiencies of the series are 90 percent over a wide load range


High-Density Flash Memory Board

September 21, 2007 9:39 am | Product Releases | Comments

Productive Product: Aitech Defense Systems, Inc. upgrades the memory capacity of its C212 high-capacity, non-volatile memory VMEbus board that uses NAND Flash memory supported by software drivers to provide full hard-disk emulation for up to 256 GB

Salmon Sperm Lox in Brightness

September 20, 2007 11:36 am | Blogs | Comments

Energy News: DNA from salmon -- specifically, from the fish's sperm -- makes an excellent choice for building extra-bright, biodegradeable light-emitting diodes, researchers at the University of California / Riverside found. It sounds fishy but it's true. “DNA has certain optical

Evolving the BioSnake

September 19, 2007 6:04 am | Blogs | Comments

Op-Ed: There's a blog post over at CNET about an E85 Dodge Viper which is breaking speed records. They wrote, "More than doubling the horsepower probably had a big effect on the performance of the car, but the extra octane can't hurt. Ethanol also cuts down on the greenhouse gases from the tailpipe."

Metrics Good, Volume Servers Bad

September 18, 2007 12:44 pm | Blogs | Comments

Energy News: Two interesting stories today from eWeek: first, the Green Grid member companies signed a Department of Energy agreement for data center metrics; second, coverage of Energy Star director Andrew Fanara's declaration that volume servers are so obviously bad for the green agenda.

Red Tape Trumps Recycling

September 17, 2007 12:18 pm | Blogs | Comments

Op-Ed: The full story isn't clear here, but it looks like a government crackdown on the very popular Alameda County Computer Recycling Center. For readers not in the Silicon Valley area, I can personally attest that ACCRC is a well-run, well-supported organization which does a valuable community service. So why would an EPA inspector


HP, Lenovo, Dell Support Solar Power for PCs

September 14, 2007 10:12 am | by Evan Koblentz, online editor | Blogs | Comments

Productive Product: Let's start by clarifying a vital point: this story is about solar power adapters for conventional PCs, not about "solar-powered PCs" per se.  You don't actually get a solar panel slapped to the side of your tower case; you get 86 pounds of schleppability.  But you also get to help save the planet and circumvent your local

Paw-Lenty of Energy to Save

September 13, 2007 9:44 am | Blogs | Comments

Energy News: According to U.S. News & World Report, "Minnesota Gov. Tim Pawlenty, the new chair of the National Governors Association, was in Washington this week to argue that state governments should be a driving force in reducing the nation's dependence on foreign oil and in fighting greenhouse

Investors Write Reality Check

September 12, 2007 11:03 am | Blogs | Comments

Energy News: There's a big dose of clean-energy straight talk over at from physicist and investor Mark Mills. He says there is plenty of room for smart investments into alternative energies, because there wasn't much of a bubble in the first place, nor was there a bubble 30 years ago when many of the same technologies were going to save us from

Still More Far-Fetched Start-Ups

September 12, 2007 10:32 am | Blogs | Comments

Productive Products: Human harvesting. Algae pools. Wave power. Artificial tornados. Super kites. Tesla coils. The list reads like a high-tech version of the plagues that freed Moses' people in Egypt, but will these alternative energy concepts succeed or have the proverbial sea crash down on them? "True, many of the kookier-sounding concepts are still in deep development within large corporations, universities, and

US, Chinese Research Addresses Smog

September 7, 2007 7:14 am | Blogs | Comments

Energy News: "Los Angeles and Pittsburgh provide examples of what to do — and not to do — about China's severe air pollution in the face of surging energy use from rapid economic growth," according to this AP report of U.S. and Chinese scientists' joint research. They added: "The study released Thursday compared the world's two biggest energy consumers


30-Watt, CEC-Compliant Adapter

September 5, 2007 12:45 pm | Phihong | Product Releases | Comments

Productive Product: Phihong USA expanded its adapter line with a 30W version designed for worldwide use. Designated the PSC30R Series, the 30W adapter is available with four interchangeable clip adapter plugs for use in virtually any power outlet around the world. This series of adapters is appropriate for applications involving point-of-sale equipment, test equipment, network equipment and

LED Floodlight, Indoor/Outdoor Bulb Offers Energy Savings

September 5, 2007 12:40 pm | Product Releases | Comments

Productive Product: LEDtronics’ latest generation of R30 LED Reflector spotlight direct incandescent replacement bulbs combine advanced LED technologies, standard 25 mm Edison bases and light-optimizing designs to produce vivid light. The bulbs are available in five light emitting angles (15°, 20°, 30°, 40° and 95°) and in 120V AC. Other voltages from 12V to 240V AC or DC are available.

Oval, 4 mm and 5 mm Through-Hole Lamps for Indoor/Outdoor Sign Applications

September 5, 2007 12:35 pm | Product Releases | Comments

Productive Product: Avago Technologies announced a new series of Extra Bright II oval Red, Green and Blue light emitting diodes (LEDs) for the electronic signs and signals (ESS) market. The HLMP-Lx63 (4 mm) and HLMP-Hx63 (5 mm) Series of LEDs provide an oval shaped radiation pattern, a wide viewing angle and high illumination intensity to make display characters viewable from

Small, Precision Mass Airflow Sensor Uses MEMS Technology

September 5, 2007 12:23 pm | Product Releases | Comments

Productive Product: Omron Electronic Components announced the availability of the D6F unidirectional MEMS mass flow sensor which uses a thermopile element that converts thermal energy into electrical energy and is capable of measuring mass airflow up to 3 lpm with a ±5 percent full-scale repeatable accuracy. The sensors exhibit very stable output performance across the entire scale.

Wireless Nodes and Battery Modules for Wireless Sensing Network

September 5, 2007 12:09 pm | Product Releases | Comments

Productive Product: Banner Engineering Corp. introduced new FlexPower Nodes for the company’s SureCross Wireless Network. FlexPower allows a SureCross Node to operate using 10V to 30V DC line power, solar panels, or a FlexPower battery module in remote or difficult-to-access locations. A FlexPower Wireless Node and a connected sensor can be powered by a FlexPower battery module for up to five years, depending upon the application and individual power requirements.

DC/DC PWM Buck Converters

September 5, 2007 11:59 am | Product Releases | Comments

Productive Product: The AP1533 from Diodes, Inc. is a 300 Hz, 1.8A asynchronous PWM buck converter with soft-start function, low ripple noise output, low current consumption, high efficiency, and desirable transient characteristics. The buck converter has a wide input voltage range of 4V to 23V, an adjustable output voltage from 0.8V to 23V, and is suited for applications such as LCD monitors, TVs, DVD/PVR players, set-top boxes, xDSL modems, and networking and telecommunications equipment.

USB Power Manager With Power Selection, Battery Charging, Buck Regulators

September 5, 2007 11:55 am | Product Releases | Comments

Productive Product: Linear Technology’s LTC3557 multi-function power management device for Li-Ion/Polymer battery applications integrates a linear PowerPath manager, a standalone battery charger, ideal diode, three high efficiency synchronous buck regulators and an always-on LDO in a low-profile

Ultrasound Pulser for Non-destructive Testing

September 5, 2007 10:06 am | Product Releases | Comments

Productive Product: Supertex introduced the HV739, a single channel, monolithic, high speed ultrasound pulser IC for non-destructive testing (NDT) applications. The IC brings together controller logic interface circuitry, level translators, MOSFET gate drive buffers and high current, high voltage outputs.

Two Far-Fetched Energy Start-Ups

September 4, 2007 11:07 am | Blogs | Comments

Productive Product: What of flying windmills and ultra, ultra, ultra-capacitors? Two such start-ups came to my attention today: SkyWindPower and EEStor (which doesn't have a web site). Both of these plans are real but of questionable science.

Links Revisited: 41 and Counting

August 30, 2007 11:46 am | Blogs | Comments

Op-Ed: Our second-ever post here in The Efficiency Zone, which came back in March, was a list of other web sites related to energy efficiency and technology. That list is now at 41 suggested resources.

Solar-Powered Outdoor WiFi

August 30, 2007 10:14 am | Blogs | Comments

Productive Product: From the UK's Techworld magazine, "A small US startup has announced technology for running Wi-Fi routers in remote places using only the power of the sun. Among the first round of products from Solis Energy is the Solar Power Plant, touted as being capable of supplying 12, 24 and 48 Volts DC for use in standalone applications such as surveillance cameras and outdoor Wi-Fi."

Help Wanted: CGO

August 27, 2007 6:49 am | Blogs | Comments

Energy News: Does your company have a chief green officer? They do at Sun Microsystems, as explained in this San Jose Mercury News article. Dave Douglas' job involves everything from auditing the green practices of the corporate cafeteria to participating in data center design.

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