Energy Efficiency

December 2018
The Power and Evolution of GaN â€

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Figure 1: Surgical Robot

Bringing Precision Control to Surgical Robots with eGaN® FETs and ICs In this series, how the superior switching speed of gallium nitride (GaN)-on-silicon low voltage
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Date:
12/31/2018
PoE Injectors Meet DOE VI Efficiency Regulations
MIDDLEBOROUGH, Mass. – Sager Electronics is now stocking Phihong’s POEA30U 30W Single-Port PoE Injector power supplies. The POEA30U 30W Single-Port Power-over-Ethernet (PoE) Injectors are IEEE802.3at mid-spans that meet DOE VI efficiency regulations for external
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Date:
12/27/2018
Increasing the Capacity of Lithium-Ion Batteries by 15%

The efficiency was increased by adding a solid electrolyte to the battery's cathode.

Lithium-ion batteries are used in different areas - from mobile phones and laptops to cardiac pacemakers and electric vehicles. Currently, scientists are trying to increase battery power while reducing its size. The team of researchers from Russia and China in collaboration with an industrial partner managed
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Date:
12/26/2018

Droughts Boost Emissions as Hydropower Dries up

This photo is an aerial view of Folsom Dam and Lake in Sacramento County shows low water levels in January 2014.

When hydropower runs low in a drought, western states tend to ramp up power generation - and emissions - from fossil fuels. According to a new study from Stanford University, droughts caused about 10 percent of the average annual carbon dioxide
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Date:
12/23/2018
Electrolyte Design is a Game-Changer for Magnesium Batteries

University of Houston researchers Yan Yao, left, Hui Dong and Yanliang Leonard Liang led a project to improve the performance of magnesium batteries.

Researchers from the University of Houston and the Toyota Research Institute of America have discovered a promising new version of high-energy magnesium batteries, with potential applications ranging from electric vehicles to battery storage for renewable energy systems. The battery, reported Dec.
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Date:
12/23/2018
IPM, Battery Chemistry & Charging Algorithms for Wearables

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Figure 1: A block diagram for Microchip’s PIC16F18446, which features high resolution Intelligent Analog peripherals such as an integrated 12-bit ADC2

The greatest challenge faced by both new battery chemistry and charging algorithm developers is obtaining an Application-specific Integrated Circuit (ASIC) design.  Without silicon, new batteries and new charging algorithms have no way to acquire customers, and without customers – or at least potential
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Date:
12/22/2018
Challenges for EV’s Growth

Kevin Parmenter, Field Applications Manger, Taiwan Semiconductor

The Last model year sales of new electric vehicles passed a milestone of one million units.  According to McKinsey's Electric Vehicle Index at the current growth trajectory, "EV producers could almost quadruple that achievement by 2020, moving 4.5 million units or around 5 percent of the overall global
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Date:
12/22/2018
Building a Sustainable Future, one Brick at a Time

An international team of scientists, led by King's College London, have developed a thermogalvanic brick that generates electricity as long as the two faces of the brick are at different temperatures.

This is due to balanced 'electrochemical' reduction and oxidation processes occurring inside the brick at the two faces. As long as electrodes at these faces are at different temperatures, the electrochemical reactions occur and electricity is generated. The compounds inside are not consumed, do not run out
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Date:
12/20/2018
2.5 Million Euros for Developing Innovative Electrolytic Cell
Working together with external partners, chemists, materials scientists and chemical engineers at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have developed an innovative microcell for water electrolysis. They hope to replace standard plate electrodes used to split water into oxygen and hydrogen
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Date:
12/20/2018
Powder Could Help cut CO2 Emissions
Scientists at the University of Waterloo have created a powder that can capture CO2 from factories and power plants. The powder, created in the lab of Zhongwei Chen, a chemical engineering professor at Waterloo, can filter and remove CO2 at facilities powered by fossil fuels
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Date:
12/19/2018
Disordered Crystals are Promising for Future Batteries
Tiny, disordered particles of magnesium chromium oxide may hold the key to new magnesium battery energy storage technology, which could possess increased capacity compared to conventional lithium-ion batteries, find UCL and University of Illinois at Chicago researchers. The study, published today
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Date:
12/19/2018
Custom Capabilities Catalog Features New Packages
This catalog offers customers over 110 packages as the foundation for a custom design. Five new bobbin packages, including extended rail RM6 and RM10 packages, in addition to EPQ13, EPW15, and EE20/10/6 packages, are featured this year. This catalog also includes
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Date:
12/19/2018
Drop-in Replacements for Obsolete Power Supplies
A recent example involved the recommissioning of an ion implant system used in semiconductor device fabrication. Replacing the over 20-year-old power supplies without the need to modify the system chassis or control systems required a custom designed power supply.
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Date:
12/19/2018
RS Components adds signal transformers for battery monitoring

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The Bourns SM91501AL and SM91502AL are shipping from RS in the EMEA and Asia Pacific regions.

The new SM91501AL and SM91502AL are dual- and single-channel isolation transformer modules, respectively, with both devices offering common-mode chokes for noise rejection in BMS applications. Offering compliance with the AEC-Q200 standard for automotive applications,
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Date:
12/19/2018
RS Components stocks high-density capacitors from Vishay
Designed for energy storage in industrial, renewable energy and automotive environments, MAL2225 polarised electrostatic double-layer capacitors (EDLCs) combine high capacity and energy density with fast charge and discharge rates.
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Date:
12/19/2018
THN 15/20/30WI new model extension

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THN 15/20/30WI new model extension

The latest 5 VDC model additions to the THN 15/20/30WI series enable an optimal operation of any 5 Vout LDO (Low Drop-out) linear regulator. This is achieved by an extended trim function up to 6 VDC ensuring it’s correct operation. The LDO will then eliminate almost all ripple & noise components and provide
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Date:
12/19/2018
Low profile buck-boost regulator with six-sided shielding
The converter is ideal for equipment such as USB voltage regenerators, 3.3V-to-5V converters, and supercapacitor or Li-Ion battery regulators. The all-round shielding enhances thermal performance as well as preventing electromagnetic interference.
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Date:
12/19/2018
Omron launches ultra subminiature 5A switch
Andries De Bruin, Senior European Product Marketing Manager, Omron said, “The D2F-5 microswitch will push designers to minimize their application size. With a rating of 5A, these subminiature switches are ideal for high current applications and have a minimum durability
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Date:
12/19/2018
Saft and Socomec develop state-of-the-art backup power system
Total’s supercomputer is a unique decision-support tool used for oil & gas exploration and field management. It allows to improve the accuracy of subsurface imaging, optimize the development and production of Total’s fields as well as save time, by shortening
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Date:
12/19/2018
Smallest 3 phase Book Style EMC filter
These innovative filters are not only optimised to best serve the requirements of machine tool and machinery equipment but will find wider application areas. Small is not just beautiful, but also very powerful. When
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Date:
12/18/2018
Space-saving DIN-Rail power supplies
The slim fitting enclosure sizes range from 22.5mm to 60mm with optional brackets for panel mounting. All models are CE marked, have UL and TUV safety approvals and are RoHS compliant. Key features include
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Date:
12/18/2018
TI’s LMG3410R070 GaN Power Stage, Now at Mouser
Boasting ultra-low input and output capacitance, the LMG3410R070 supports new requirements for high-power-density electric motor applications, including industrial and consumer power supplies. The high-performance GaN power stage supports higher currents, temperatures,
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Date:
12/18/2018
3D position Hall sensor series with stray field compensation
TDK Corporation expands its Micronas position sensor portfolio with the Hall-sensor family HAL 39xy featuring stray-field compensation capability. The series is built on the highly flexible architecture for
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Date:
12/18/2018
New 2-channel isolated gate-driver IC family from Infineon
The new gate-driver IC family is ideally suited for high-voltage PFC and DC-DC stages as well as for synchronous rectification stages in server, telco and industrial switching mode power supplies (SMPS). Further applications are 48 V to 12 V DC-DC converters, battery
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Date:
12/18/2018
Low-Power SOTB Process Technology Eliminates Batteries
Renesas unveiled an innovative energy-harvesting embedded controller that can eliminate the need to use or replace batteries in IoT devices. Developed based on Renesas' breakthrough SOTB (silicon-on-thin-buried-oxide)
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Date:
12/18/2018
Energy Harvesting Bluetooth Low Energy Switch
The platform demonstrates how the RSL10 System-in-Package (SIP) can enable Bluetooth 5 devices that are battery-less and entirely self-powered, requiring no additional energy source. Application examples include wall and lighting control, building automation, and
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Date:
12/18/2018
New 1700V SiC Power Module
The module is optimized for outdoor power generation systems, such as inverters for solar power and converters for industrial high-power supplies. In recent years, due to its energy-saving benefits, SiC is
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Date:
12/18/2018
98.5%-Efficient High Voltage BLDC Motor Driver IC Family
BridgeSwitch ICs feature high- and low-side advanced FREDFETs (Fast Recovery Diode Field Effect Transistors) with integrated lossless current sensing, resulting in inverter conversion efficiency of up to 98.5% in brushless DC (BLDC) motor drive applications to 300
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Date:
12/18/2018
USB Type-C/PD Controller IC Enables 3A Current Delivery
The FT4233H is an advanced bridge IC with USB Type-C connectivity and USB power delivery (PD) Rev. 3.0 controller capabilities - supporting applications up to 100W. Through use of the FT4233H, it will be possible
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Date:
12/18/2018
Class-leading isolated DC-DC converter
The new BMR481 DC-DC converter has an input range of 40-60V targeting 48-54V nominal supplies, and a programmable 0.5-1.35V output. The 12 x 27.7mm footprint ‘main’ module provides a maximum output current of 70A and also incorporates a digital interface for
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Date:
12/18/2018
PSDcast â€
In this episode of the PSDcast, we're discussing wind power and solving one of the most common problems associated with the turbine generators. Be sure to check out the article referenced from Morgan Advanced Materials
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Date:
12/18/2018
A Brush with the Future of Wind Power Technology

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Figure 1. A brush box with OEM-style single pocket ground brush holders

Although a relative newcomer to the energy market, wind power is growing rapidly as the global demand for clean, efficient and sustainable energy rises. According to the Global Wind Energy Council, the sector grew 25 per cent each year between 2002 and 2007. It’s now estimated that the Global Wind Energy Market
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Date:
12/18/2018
A Silver Bullet to fix Waste Energy Issues
A team of researchers led by Osaka University developed an inexpensive large-scale flexible thermoelectric generator (FlexTEG) module with high mechanical reliability for highly efficient power generation. Through a change in direction of the top electrodes at the two sides of the module and the use of high
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Date:
12/18/2018
Maximizing the Effectiveness of Platinum in Fuel Cells

Argonne chemist Lina Chong (foreground) holds a sample catalyst while Argonne chemist Di-Jia Liu looks on.

In the journal Science, Argonne chemists have identified a new catalyst that maximizes the effectiveness of platinum. Platinum is a precious metal more rare than silver or gold. Renowned in the fuel cell community for its effectiveness in converting hydrogen and oxygen into water and
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Date:
12/14/2018
Osram's OSLON Square LEDs Now Available from Rutronik
PLANO, TX – Rutronik, Inc. has announced the availability of Osram’s OSLON Square Series LEDs, a family of compact high-power LEDs that deliver superior performance in a wide range of high-density lighting applications.   Designed for both indoor and outdoor general lighting applications,
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Date:
12/13/2018
Chip Resistors Deliver Industry-Leading TCR Characteristics
Kyoto and Santa Clara, Calif. –  ROHM announced the availability of a new lineup of high power wide terminal thick-film chip resistors (10-910mΩ), LTR50 series, ideal for current detection in a variety of applications, including inverters, AC, and energy-efficient appliances. A thorough review
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Date:
12/13/2018
Challenges of SiC for Automotive Applications

Figure 1. IGBT’s and Discrete Diodes

(Be sure to check out our PSDcast with ROHM on the same topic here: https://www.powersystemsdesign.com/articles/psdcast-the-formula-e-electric-racing-series/35/13290) Two of the biggest
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Date:
12/11/2018
Trump Wants to Pump the Brakes on Auto Emissions Standards
President Trump wants to freeze Obama-era CAFE standards, potentially setting up a major clash for the 2020 elections. Obama’s Corporate Average Fuel Economy (CAFE) standards, enacted in
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Date:
12/10/2018
Enhancing EV Ecosystems Through Efficient Power Conversion

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EV charging

Today’s hybrid and fully electric vehicles (EVs) are still in the early stages of the iterative process of innovation. Several generations of hybrid vehicles have been introduced to market and improved through a combination of technology advances and user feedback. A number of vendors now market competent
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Date:
12/10/2018
Ultra-Compact Secondary Automotive Buck DC/DC Converters

Figure 1: Example System Configuration

ROHM has recently launched the BD9S series of secondary synchronous Buck DC/DC converters qualified to AEC-Q100 for automotive applications. These offer high reliability and low power consumption in a compact form factor. This makes them very suitable for applications like radars, cameras and sensors which can
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Date:
12/10/2018
Overcoming Poor Power Quality in Small Spaces
For years, the adoption of electric vehicles (EVs) has been marred by a slow diffusion of innovation among consumers. Probably the most obvious problem is that buyers have been apprehensive of the high initial cost of buying EVs, as well as the total cost of owning an electric vehicle over the course of its
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Date:
12/10/2018
Mild Hybrid Vehicle Solutions Address Emissions Challenge

Figure 1. A Typical 48V Mild Hybrid System Electrical Topology

With the very recent reassertion by scientists that the current trajectory for reducing the rate of global temperature increases is simply not good enough, there is now even greater pressure to reduce vehicle emissions of CO2 gasses. The best way of achieving this is through a reduction of the average
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Date:
12/10/2018
Photocathodes With High Quantum Efficiency

Photocathode after its production in the preparatory system.

Teams from the accelerator physics and the SRF groups at HZB are developing a superconducting linear accelerator featuring energy recovery (Energy Recovery Linac) as part of the bERLinPro project. It accelerates an intense electron beam that can then be used for various applications - such as generating brilliant
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Date:
12/07/2018
VALENCIA, CA - H2scan announced the Gen 5 System, a first of its kind hydrogen sensor package that offers the high accuracy, small size, and low cost needed to help utilities monitor and protect their distribution transformers. Electronics for the Gen 5 System are consolidated onto
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Date:
12/07/2018
Fighting Smog Supports Solar Power

Milky, gray smog shrouds many of the valleys and lowlands of eastern China in January 2017. The orange star marks the location of Beijing.

The air in Beijing is often very bad. The city sinks under a brown cover made of exhaust gases from industry, cars and coal fires, which blow a lot of harmful particulate matter, soot, sulfur dioxide and nitrogen oxides into the air. The dirty air causes massive damage to human health. According to
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Date:
12/06/2018
Blast to the Future

Principal investigator Subramanian Sankaranarayanan (left), and co-principal investigators Mathew Cherukara (center), Henry Chan (right) and Badri Narayanan (not pictured) are developing a new machine learning based software that will enable industry to more quickly and efficiently perform the molecular dynamics simulations they need to vet the performance of new materials for their products.

Discovering and designing new materials is frequently an expensive and time-intensive process. To speed it up and create new materials for everything from aeronautics to wind turbines, scientists have begun to rely on complex modeling and simulation platforms. Thanks to a new grant from the U.S. Department
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Date:
12/05/2018
A Step Closer to Fusion Energy

Researchers have moved a step closer to harnessing fusion energy by showing how imaging enables better testing of components for devices.

Harnessing nuclear fusion, which powers the sun and stars, to help meet earth's energy needs, is a step closer after researchers showed that using two types of imaging can help them assess the safety and reliability of parts used in a fusion energy device. Scientists from Swansea University, Culham
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Date:
12/05/2018
High-Voltage GaN Exhibits 33 Percent More Power Output
GOLETA, Calif. — Transphorm Inc., along with solar energy innovator Inergy and design partner Telcodium Inc., announced that the upcoming Inergy Kodiak Extreme uses high-voltage GaN to reimagine what’s possible
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Date:
12/05/2018
Aluminum Nitride to Extend Life of Solar Power Plants

NUST MISIS scientists together with their colleagues from the Central Metallurgical R&D Institute (Cairo, Egypt) have developed a composite material which will extend the life of solar towers -- installations for collecting Solar thermal energy -- from 2-3 to 5 years. The research article has been published in the Renewable Energy journal.

Today, solar power plants (SPP) are becoming increasingly popular, making it possible to collect and process solar energy on an industrial scale. So-called solar towers are among the most promising types of SPPs. This is a special structure that is a high tower with a water tank and a turbine system inside.
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Date:
12/04/2018
Full of Energy

(Left to right) University of Utah electrical and computer engineering assistant professor Sriram Krishnamoorthy, associate professor Mike Scarpulla, and assistant professor Berardi Sensale-Rodriguez have received a $1.88 million grant to study the properties of gallium oxide as a semiconductor for more efficient power converters. The material could prove to be much more efficient, losing less heat and providing longer power to devices such as drones or all-electric planes, trains and buses.

Electricity as a form of energy is not exactly efficient because much of it is lost as heat. Or as University of Utah electrical and computer engineering associate professor Mike Scarpulla says: "Heat is the universe's garbage can for energy." Inside power systems, converters and electronic
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Date:
12/04/2018
The Power and Evolution of GaN - Part 3

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Figure 1: Overview of a typical LIDAR system

How to Build an Ultra-Fast High-Power Laser Driver using eGaN® FETs - That Sees Farther, Better, and at a Lower Cost! In the first article in this series, how
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Date:
12/02/2018
Precision Power Analysis

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Figure 1: Measuring power-train efficiency in an electric vehicle, showing four DC measurements (1 to 4) with the corresponding mechanical power measurements (M1 to M4)



In the rapidly evolving area of power electronics, the need for reliable testing to enhance safety, efficiency and performance has never been greater. In sectors as diverse as renewable energy, electric vehicles and energy-efficient technologies, changing application needs and evolving industry standards call
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Date:
12/01/2018