In this PSDcast, Erik Milz, with Cree, discusses some of the common myths and misconceptions surrounding LED street lighting. We also delve into some of the chief benefits of solid state lighting for motorists ... Read
Galvanic isolation between the high-voltage and low-voltage sides.
TDK has joined forces with Infineon Technologies to develop a design for xEV inverters that achieves a very high efficiency of over 98 percent over a power range of 10 kW to 150 kW. This success has been achieved by matching of the Infineon IGBT module and the EPCOS and TDK passive components.
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Long lines for distributed loads can emit and be susceptible to interference which can affect the connected loads. However, the loads work without disruption as long as a few basic rules are observed when it comes to cabling.
Moderndevices and systems are generally complex, their electrical/electronic
Martin Winkler (right) and Thomas Happe (left) have captured an enzyme's transient intermediate state.
Researchers at Ruhr-Universität Bochum and the Freie Universität Berlin have clarified the crucial catalytic step in the production of hydrogen by enzymes. The enzymes, called [FeFe]-hydrogenases, efficiently turn electrons and protons into hydrogen. They are thus a candidate for the biotechnological production
This is an artist's rendering of the main accelerator components in Wilson Lab.
ITHACA, N.Y. - With the introduction of CBETA, the Cornell-Brookhaven ERL Test Accelerator, Cornell University and Brookhaven National Laboratory scientists are following up on the concept of energy-recovering particle accelerators first introduced by physicist Maury Tigner at Cornell more than 50 years ago.
Berkeley Lab scientist Tim Kneafsey demonstrates how he places rock samples, from the Brady Geothermal Field in Nevada, into a stress permeability apparatus, which tests how long a fracture can remain open.
The Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) will lead a new $9 million project aimed at removing technical barriers to commercialization of enhanced geothermal systems (EGS), a clean energy technology with the potential to power 100 million American homes.
Despite current stability and positive sales growth in the circuit board indus-try, it must be presumed that consolidation has not yet come to an end. Circuit board manufacturers are facing enormous price erosion caused by Asian circuit boards, as well as rising manufacturing costs in Europe and generally
CORVALLIS, Ore. - Robotics researchers have found a way for autonomous underwater vehicles to navigate strong currents with greater energy efficiency, which means the AUVs can gather data longer and better.
AUVs such as underwater gliders are valuable research tools limited primarily by their energy
This is the exsolution of a B-site cation with oxygen from layered perovskite in a reducing atmosphere.
The commercialization of the 'natural gas fuel cell' has finally come to the fore, thanks to the recent development of electrode materials that maintain long-term stability in hydrocarbon fuels. Advantage of using this material includes that it uses internal transition metal as a further catalyst in a fuel cell
TDK Corporation has extended its range of EPCOS PTC-based inrush current limiters. The four new versions of the B5921*J0130A020 series with plastic housing are designed for voltages from 280 V AC to 560 V AC, offer rated resistances from 22 Ω to 100 Ω at 25 °C and have a heat capacity of up to 2.3 J/K.
EVANSTON, Ill. --- The concentration of ultrafine particles less than 50 nanometers in diameter rose by one-third in the air of São Paulo, Brazil, when higher ethanol prices induced drivers to switch from ethanol to gasoline, according to a new study by a Northwestern University chemist, a National University
Exceptionally thin and lightweight, Alpha Wire’s new ThermoThin Hook-Up Wire offers outstanding performance for a wide range of demanding applications and environments. ThermoThin is now available from Aerco, the distributor and stockist of electrical and electronic components servicing hi-rel markets. ThermoThin
Mouser Electronics, Inc., along with celebrity engineer Grant Imahara, released a new video for the Shaping Smarter
A metal nanosponge is shown under the microscope.
In order to store information in the conventional magnetic memories of electronic devices, the materials' small magnetic domains work by pointing up or down according to the magnetic fields. To generate these fields it is necessary to produce electric currents, but these currents heat up materials and a large
Cigdem Eskicioglu is a professor of engineering at UBC's Okanagan Campus.
New research from a professor of engineering at UBC's Okanagan Campus might hold the key to biofuels that are cheaper, safer and much faster to produce.
"Methane is a biofuel commonly used in electricity generation and is produced by fermenting organic material," says Cigdem Eskicioglu,
SUNNYVALE, Calif. – Alpha and Omega Semiconductor Limited (AOS) announced the release of AOTF190A60L, the first product in the new aMOS5 HV MOSFET platform. This device provides high-efficiency performance in an easy-to-use solution optimized for server power supplies, high-end computers,
This is an optical micrograph of perovskite crystal grains crafted by meniscus-assisted solution printing.
A new low-temperature solution printing technique allows fabrication of high-efficiency perovskite solar cells with large crystals intended to minimize current-robbing grain boundaries. The meniscus-assisted solution printing (MASP) technique boosts power conversion efficiencies to nearly 20 percent by controlling
Mouser Electronics, Inc. is now stocking the EFR32BG12 and EFR32BG13 Blue Gecko systems-on-chips (SoCs) from Silicon Labs. Part of the Wireless Gecko portfolio, these Bluetooth low energy SoCs deliver superior RF performance, enhanced cryptography acceleration, larger memory options, on-chip capacitive
Researchers at the University of Texas at Dallas and Seoul National University have designed a novel battery cathode material that offers a potentially lower-cost, more eco-friendly option to lithium-ion batteries. Their sodium-ion design, which retains the high energy density of a lithium-ion cathode, replaces the most of the lithium atoms (green) with sodium (yellow). The layered structure of the new material also incorporates manganese (purple) and oxygen (red). The research is published in the journal Advanced Materials.
In the battle of the batteries, lithium-ion technology is the reigning champion, powering that cellphone in your pocket as well as an increasing number of electric vehicles on the road.
But a novel manganese and sodium-ion-based material developed at The University of Texas at Dallas, in collaboration
University of Washington researchers have invented a cellphone that requires no batteries -- a major leap forward in moving beyond chargers, cords and dying phones. Instead, the phone harvests the few microwatts of power it requires from either ambient radio signals or light.
The team also made Skype
Enzymes, genetically engineered to avoid sticking to the surfaces of biomass such as corn stalks, may lower costs in the production of cellulose-based biofuels like ethanol.
Biofuels like the ethanol in U.S. gasoline could get cheaper thanks to experts at Rutgers University-New Brunswick and Michigan State University.
They've demonstrated how to design and genetically engineer enzyme surfaces so they bind less to corn stalks and other cellulosic biomass, reducing enzyme
Christopher J. Kiely is Harold B. Chambers Senior Professor, Materials Science and Engineering at Lehigh University.
Christopher J. Kiely, Harold B. Chambers Senior Professor, Materials Science and Engineering at Lehigh University, and an international team have developed a new low-temperature catalyst for producing high-purity hydrogen gas
Genome-wide distribution of fast-neutron-induced mutations in the Kitaake rice mutant population (green). The genome-wide distribution of mutations indicates a non-biased saturation of the genome. Colored lines (center) represent translocations of DNA fragments from one chromosome to another.
Rice is a staple food for over half of the world's population and a model for studies of candidate bioenergy grasses such as sorghum, switchgrass, and Miscanthus. To optimize crops for biofuel production, scientists are seeking to identify genes that control key traits such as yield, resistance to disease, and
A member of the Faculty of Biology of the Lomonosov Moscow State University in cooperation with his colleagues has optimized and characterized TiO₂-based solar cell design using diverse plant pigments. Two types of solar cells with two photosensitizers: thylakoid membrane preparations and anthocyanin-enriched
These are DMFC assemblies. Schematic illustration showing a DMFC fabricated with selective electrocatalysts at the anode and cathode chambers. Inlet is the photograph of the assembled cell.
A research group from the Institute of Process Engineering (IPE), Chinese Academy of Sciences recently reported the development of a new technology to boost performance of direct methanol fuel cells (DMFCs) using high-concentration methanol as fuel, shedding some light on the design of clean and affordable alternative