Energy Efficiency

July 2018
When audio applications require the highest power efficiency, lowest heat generation, smallest size, and lightest weight, Class-D switched-mode amplifiers surpass the linear class amplifiers.  This makes Class-D amplifiers the best choice for extending battery life in DC-powered audio applications, such
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Date:
07/31/2018
IC Offers High Accuracy for Real-Time Power Measurement
CHANDLER, Ariz.— In systems that use both AC and DC power, the implementation of dual-mode power monitoring traditionally requires multiple ICs to ensure superior performance and accuracy. Growing applications such as solar inverters, smart lighting and cloud servers often use both modes to
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Date:
07/31/2018
Optimizing Thermal-Management for Best Performance and Reliability

Figure 1: Adding a heatsink to boost top-side cooling of thermally enhanced power package

Power conversion is common to almost all electronic systems. Efficiency is critical, whether the objective is to maximize runtime for a small battery-powered device, reduce utility costs to power data-center servers, or others such as ensuring cost parity for renewables. Efficiency is never 100%,
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Date:
07/31/2018

AC-DC Power Supply Offers Wide Operating Temperature
MIDDLEBOROUGH, Mass. - Sager Electronics is now stocking MEAN WELL’s MPM-05-30 Miniature, Medical Grade AC-DC Power Supply. The MPM series is one third the size of the previous version, but offers a wider operating temperature, higher efficiency, and lower no-load power consumption.  The new
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Date:
07/30/2018
Three £5 million energy research hubs and a new £1 million network in solar energy that will build multidisciplinary collaborations between universities, academic bodies and industry were announced today by the Engineering and Physical Sciences Research Council (EPSRC). The three Supergen Energy
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Date:
07/27/2018
Europe Thrives on Renewables Despite Unpredictable Weather

This graphical abstract shows the impact of long-term weather variability on the operation of the European power system and how this scales with uptake of wind and solar power out to 2030. We find that ambitious decarbonization leads to much greater influence of long-term weather patterns, with a 5-fold increase in operational variability by 2030. Several relevant metrics can be reasonably approximated by linear functions of variable renewable penetration, providing a shortcut for estimating the impacts of intermittency.

Researchers in Ireland, Switzerland, and the United Kingdom have shown how long-term weather patterns affect wind and solar renewable energy technologies across Europe. Using 30 years of meteorological data, the scientists have examined and further modelled the impact of renewable energy on the electricity sector
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Date:
07/26/2018
N-Channel Surge Stopper Protects Against 150V Transients
NORWOOD, MA - Analog Devices announces the Power by Linear LTC7862, a high efficiency switching surge stopper with overvoltage and overcurrent protection for high availability systems. The LTC7862 drives an N-channel power MOSFET stage. During normal operation the LTC7862 passes the input voltage through to
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Date:
07/26/2018
MALVERN, Pa. — Vishay Intertechnology, Inc. introduced two new series of surface-mount Automotive-Grade power LEDs in PLCC-2 and ultra compact MiniLED packages. Utilizing the latest advanced AllnGaP technology in the smallest chip size available, the Vishay Semiconductors VLMx335xx and VLMx235xx series deliver
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Date:
07/25/2018
Organic Solar Cells Used in Roof Tiles Generating Power

A solar tile

An international team of materials scientists from France, Russia and Kazakhstan found a way to boost the efficiency of organic solar cells several times. The new study, published in the Journal of Materials Chemistry A, has shown that ordered structures based on organic molecules can be used to produce
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Date:
07/25/2018
WASHINGTON - The science questions that could be answered by an electron ion collider (EIC) - a very large-scale particle accelerator - are significant to advancing our understanding of the atomic nuclei that make up all visible matter in the universe, says a new report by the National Academies of Sciences,
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Date:
07/25/2018
Hydrogen and Plastic Production: Catalyst With Dual Function

Dulce Morales, Steffen Cychy, Stefan Barwe, Dennis Hiltrop, Martin Muhler and Wolfgang Schuhmann (from left)

Chemists at Ruhr-Universität Bochum (RUB) have developed a new, low-cost catalyst for plastic production. It turns a biorefinery product into a starting material for the synthesis of plastics, which could represent a sustainable alternative to widespread PET. At the same time, the potential energy source hydrogen
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Date:
07/24/2018
450 Watt Power Supply for Medical and Industrial Applications
TRACO POWER has announced the release of their TPP 450A series, a 450 watt family of power supplies in an open-frame, 3x5” package featuring 91%~94% efficiency. Full load operation from -40°C to +50°C (with airflow) and a leading conduction cooled rating, up to 320W at +50°C
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Date:
07/24/2018
DOE Invests $64 Million in Advanced Nuclear Technology

Hyun Gook Kang, associate professor of mechanical, aerospace, and nuclear engineering at Rensselaer, is the principal investigator.

The U.S. Department of Energy (DOE) has announced nearly $64 million in awards for advanced nuclear energy technology to DOE national laboratories, industry, and 39 U.S. universities in 29 states. Rensselaer Polytechnic Institute has been awarded $800,000 for analysis of nuclear power plants' accident propagation
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Date:
07/20/2018
Filter Capacitors Cover Voltage Range From 250 to 850 Vrms
TDK Corporation presents the new, extensive B3237* series of EPCOS MKD 3-phase capacitors for filter applications. The capacitors cover a voltage range from 250 VRMS to 850 VRMS in 10 stages and are available with capacitances of between 3 x 10 µF and 3 x 400 µF. Depending
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Date:
07/17/2018
 Rittal North America Expands Blue E+ Cooling Unit Generation

Blue e+ cooling units are currently the most efficient of their kind on the market, and Rittal is now also expanding its products into the lower output range with a new 1.6 kW device.

Schaumburg, IL -- Cooling units with new 1.6kW output class. Rittal Blue e+ cooling units are currently the most efficient of their kind on the market. The manufacturer is now expanding its range of cooling units with the addition of a device with an output class of 1.6 kW. Besides being 75 percent more energy-efficient
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Date:
07/17/2018
How to Build Efficient Organic Solar Cells

This is Feng Gao, associate professor at Linköping University, Sweden.

Twenty-five researchers from seven research institutes have put their heads together to draw up rules for designing high-efficiency organic solar cells. The research is led by Feng Gao, associate professor at Linkoping University, Sweden. Organic solar cells, made from carbon-based materials, present
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Date:
07/16/2018
Singapore - Nanyang Technological University, Singapore (NTU Singapore) is partnering with the French Alternative Energies and Atomic Energy Commission (CEA) to develop innovative and energy-efficient solutions in the recycling and recovery of resources from electrical and electronic waste (e-waste). The
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Date:
07/13/2018
Can Ultrashort Electron Flashes Help Harvest Nuclear Energy?
The lab of Fabrizio Carbone at EPFL and their international colleagues have used ultrafast Transmission Electron Microscopy to take attosecond energy-momentum resolved snapshots (1 attosecond = 10-18 or quintillionths of a second) of a free-electron wave function. Though unprecedented in itself, the scientists
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Date:
07/12/2018
Authorised Yuasa battery distributor Gresham Power Electronics, the Salisbury based Defence and Commercial power conversion specialist, announces the availability of two series of high reliability VRLA batteries (valve-regulated lead-acid) from Yuasa’s wide industrial
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Date:
07/11/2018
Transducer’s for leakage current measurement of PV inverters
The LDSR model is an innovative, low cost and lightweight (25g) component, with a reduced footprint. The LDSR is dedicated to measuring the leakage current of 300 mA nominal up to 900 mA peak at 2 KHz frequency. Its main application is in transformerless photovoltaic (PV) inverters for the residential market,
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Date:
07/11/2018
Infineon’s CoolGaN opens up a new horizon in power management
The key benefits of gallium nitride (GaN) are, amongst others, high power density, best-in-class efficiency and decreased system costs. Infineon Technologies is starting volume production for CoolGaN™ products by the end of 2018, the company announced during PCIM Europe. Engineering samples of the high reliable
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Date:
07/11/2018
New 650V IGBTs Deliver Class-Leading Efficiency with Soft Switching
ROHM has announced the availability of two new types of 650V IGBTs that combine class-leading low conduction loss with high-speed switching characteristics. This makes them ideal for power conversion in general-purpose inverters and converters for consumer appliances, such as ACs and IH (Induction Heaters),
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Date:
07/11/2018
M12 Slim Design with HARAX Quick Connect
Following the trend of miniaturisation, HARTING is expanding its M12 family in the field of slim design connectors with HARAX insulation displacement Quick Connect connectors – the slim, field-installable solution for automation technology. This allows fast and uncomplicated cabling on site. The
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Date:
07/11/2018
ESD protection range for USB Type-C surge protection
Nexperia has optimised its TrEOS ESD protection diode series for use with USB Type-C interfaces. The new USB3.2 standard introduces an optional capacitor at the Rx inputs, so Nexperia is now launching two groups of devices, one that delivers extremely high surge robustness for positioning between the connector
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Date:
07/11/2018
Quint Power DIN-mount power supplies at RS Components
RS Components is stocking the latest Phoenix Contact Quint Power DIN-rail power supplies, giving easy access to the innovative features and flexibility of these space-saving PSUs. The 4th generation of Quint
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Date:
07/11/2018
Mouser Adds 25 New Suppliers in First Half of 2018
Mouser Electronics has added more than 25 new suppliers YTD to its already vast line card of over 700 suppliers. With an already extensive portfolio of products and suppliers across the board, the additional suppliers bolster the product choices for Mouser’s unique
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Date:
07/11/2018
CUI Partners and SnapEDA Offer Free PCB Footprint Files
CUI today announced that it has teamed up with SnapEDA to provide designers with a catalog of free, ready-to-download PCB footprints and symbols for CUI’s range of board mount electromechanical components. Circuit
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Date:
07/11/2018
A2B Transceivers Deliver Unparalleled Flexibility
Analog Devices announces three enhanced Automotive Audio Bus (A2B) transceivers that deliver unprecedented capability to tailor system-level performance to even the most stringent electromagnetic compatibility requirements. The new AD242xW series offers configurable
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Date:
07/11/2018
Compact 3W and 10W board-mount power supplies
XP Power is launching its low-cost VCE03 and VCE10, 3W and 10W series of board-mounted AC-DC power supplies with extended universal input range from 85VAC to 305VAC, covering all nominal AC inputs from 100VAC to 277VAC in a single ultra-compact design. Both the VCE03 and VCE10 provide a complete AC-DC
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Date:
07/11/2018
Multi-chip module PWM Buck Regulators have high current density
ON Semiconductor announced the release of three new highly-efficient mid-voltage PWM buck converters. Supporting a wide input voltage range of 4.5 V to 65 V, an output current of up to 10 A and output power
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Date:
07/11/2018
FOUNTAIN INN, S.C. – AVX Corporation developed a cost-effective, ultra-high-reliability, three-piece STRIPT contact system for linear LED and coplanar PCB connections in off-road vehicle lighting applications. Designed to absorb broad end-to-end mating tolerances, handle up to 20A of continuous current, and
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Date:
07/11/2018
DC Panel Meters Calculate Power up to 96 kW
Murata introduces the new DCM20 series of multifunction panel meters from Murata Power Solutions. For DC systems, these meters measure DC voltage and current, calculate power up to 96 kW, and display values either manually selected or continuously cycling. The miniature panel-mount product provides an input
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Date:
07/11/2018
Power IC Brings Reduced Heat Generation to Data Centers
IRVINE, Calif. -- Fabless power semiconductor company Helix Semiconductors announced that Agility Power Systems (Agility) is using the MxCTM 200 IC for its innovative, 1 kilowatt, high-efficiency 48VDC to 12VDC power converter. Agility designs highly efficient switched capacitor power conversion devices targeted
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Date:
07/11/2018
Salt Leads to Cheaper and More Efficient Batteries
A new design of rechargeable battery, created using salt, could lead the way for greener energy. Researchers at the University of Nottingham Ningbo China (UNNC) have joined forces with a specialist group at the Shanghai Institute of Applied Physics (SINAP), Chinese Academy of Sciences on designs for the novel
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Date:
07/09/2018
Bacteria-Powered Solar Cell Converts Light to Energy, Even Under Overcast Skies
University of British Columbia researchers have found a cheap, sustainable way to build a solar cell using bacteria that convert light to energy. Their cell generated a current stronger than any previously recorded from such a device, and worked as efficiently in dim light as in bright light. This
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Date:
07/05/2018
Nitride Semiconductor for Environmental Photovoltaics

(a) This is a copper and Copper Nitride. (b) Theoretical Calculation for P-type and N-type Copper Nitride. (c) Direct Observation of Fluorine Position in Fluorine-doped Copper Nitride. (a) An image of thin film copper plates before and after reacting with ammonia and oxygen. Copper metal has been transformed to copper nitride. (b) Copper insertion for an n-type semiconductor and fluorine insertion for a p-type semiconductor. (c) Nitrogen plotted in red, fluorine in green, and copper in blue. Fluorine is located at the open space of the crystal as predicted by the theoretical calculation.

A Tokyo Institute of Technology research team has shown copper nitride acts as an n-type semiconductor, with p-type conduction provided by fluorine doping, utilizing a unique nitriding technique applicable for mass production and a computational search for appropriate doping elements, as well as atomically resolved
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Date:
07/03/2018
PSDcast - Hard vs Soft Switching

Bruce T Renouard, the CEO of Pre-Switch.

On this episode of the PSDcast, we’re chatting with Pre-Switch about hard and soft switching and some of the fundamental differences between the two. Pre-Switch
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Date:
07/03/2018