Energy Efficiency

July 2021
Climate-Neutral Fuel Cell Test with Regenerative Loads

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Figure 1 here

Figure 1. E-Mobility: Sustainable battery recycling with EA Elektro-Automatik

Fuel cells have found applications in material handling vehicles, delivery vehicles, long-haul trucks, and use as backup power systems. Government initiatives, economic incentives, and new applications are resulting in a market growth rate exceeding 30%. An individual fuel cell generates under 2V of output
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Date:
07/31/2021

University of Sheffield Wins Formula Student Competition
A team of engineering students from University of Sheffield won the Formula Student 2021 racing car competition, beating off fierce competition from over 30 teams at event held at Silverstone Race Circuit at the weekend. The competition, which is organised by the Institution of Mechanical Engineers, returned
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Date:
07/28/2021
Spin-sonics: Acoustic Wave gets the Electrons Spinning

Representation of the spin of a nanoscale acoustic wave. Credit: Maximilian Sonner, Institute of Physics at the University of Augsburg

Researchers have detected the rolling movement of a nano-acoustic wave predicted by the famous physicist and Nobel prize winner Lord Rayleigh in 1885. This phenomenon can find applications in acoustic quantum technologies or in so-called “phononic” components, which are used to control the propagation of ac
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Date:
07/28/2021
US and German Collaboration to Produce Efficient Green Hydrogen

A new research project that aims to produce green hydrogen more efficiently brings together a multidisciplinary team comprising professors Hong Yang and Nicola Perry at the University of Illinois Urbana-Champaign and Professor Andreas Klein at the Technical University of Darmstadt.

Through a new award program, the U.S. National Science Foundation and the Deutsche Forschungsgemeinschaft (German Research Foundation, DFG) have joined forces to award the University of Illinois Urbana-Champaign and Technical University of Darmstadt a three-year $720,000 research grant ($500,000 from NSF) to explore opportun
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Date:
07/27/2021
Meeting Climate Targets to Lead to 8 Million More Energy Jobs by 2050

The figure shows the changes in energy sector jobs by energy technology comparing different scenarios (see axis description) and across the different SSPs.

Researchers created a global dataset of job footprints in 50 countries and used a model to investigate how trying to meet the Paris Agreement global climate target of staying well below 2°C would affect energy sector jobs. They found that action to reach said target would increase net jobs by about 8 million by
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Date:
07/27/2021
New motor control software boosts BridgeSwitch ICs
Electric motors are responsible for using a huge portion of the electricity we generate. Some estimates put that figure almost half of global energy consumption. As such, it makes sense to have the motors driven as efficiently as possible, for the user to save costs, for the supplier who won’t face so large deman
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Date:
07/23/2021
Machine Learning Helps Photovoltaics Find its Place in the Sun

Integrating photovoltaic systems into existing power grids is not straightforward and requires accurate predictions of the power they will generate to allow for proper grid management.

With the looming threat of climate change, it is high time we embrace renewable energy sources on a larger scale. Photovoltaic systems, which generate electricity from the nearly limitless supply of sunlight energy, are one of the most promising ways of generating clean energy. However, integrating photovoltaic sys
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Date:
07/21/2021
THB-Rated DC Link Capacitors Offer 50% Greater Life
Green energy and electric transportation systems have pushed explosive growth in inverter markets. Many of these applications present harsh operating environments for power electronics circuitry. Often, these applications demand a high percentage of uptime, increasing the need for highly reliable components. In
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Date:
07/19/2021
1500V Power Module Doubles Up for Both Solar and Storage Use
This is partly due to packaging requirements and partly due to the bespoke requirements for individual use cases. This drives up the cost of components for high-power applications as there is very little economy of scale. Infineon has tried to buck this trend somewhat with its new EasyPACK CoolSiC MOSFET module that
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Date:
07/16/2021
General Electric Agrees to Net-Zero-by-2050 Target

Danielle Fugere, President & Chief Counsel, As You Sow

After a 98% shareholder vote on an As You Sow resolution on May 4, General Electric (GE) announced a major commitment to transition its business to address climate change by setting a target to achieve net zero carbon emissions by 2050. This target not only encompasses GE’s operations but importantly includes its Scope 3 emissions from customers’ use of the products it sells, including power generation equipment, which account for a significant portion of the company’s emissions. This announcement marks an important shift in GE’s business plans as a major manufacturer of fossil fuel power generation technologies, including thermal power plants and jet engines. GE announced in late 2020 that it will exit the new build coal power market. As You Sow supports this major step
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Date:
07/15/2021
Power Disconnect Solution for Faster and Safer DC Fast Charging
Sensata Technologies announced its new power disconnect solution has been chosen by several leading charging infrastructure OEMs to enable faster and safer DC fast charging. Sensata’s unique solution combines contactors and GigaFuses from its leading Gigavac product brand to provide customers with a value-added co
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Date:
07/14/2021
Crowley to Build, Operate First Fully Electric U.S. Tugboat
Crowley Maritime Corporation will lead the next generation of industry sustainability by building and operating eWolf, the first all-electric powered harbor tugboat that can complete a job without expending a drop of fuel. “The eWolf represents everything Crowley stands for: innovatio
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Date:
07/12/2021
PSDcast – Guidelines for High Power Server and Telecom Power Supplies

Dr. Gerald Deboy with Infineon

Our old friends at Infineon just completed a four-part article series with us on silicon and wide bandgap solutions, and today, we wanted to take a deeper dive into the last part on “Design Guidelines for High Power Server and Telecom Power Supplies Use-Cases”. Infineon
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Date:
07/08/2021
Strong Kinship of Nickelate's Magnetism w/ Cuprate Superconductors

The first measurements of magnetic excitations rippling through a nickelate superconductor show it has a strong kinship with cuprate superconductors, like the one at left, as opposed to the more distant neighborly relationship depicted at right. The study by researchers at SLAC, Stanford and Diamond Light Source revealed important similarities and subtle differences between the two materials, which conduct electricity with no loss at relatively warm temperatures.

Ever since the 1986 discovery that copper oxide materials, or cuprates, could carry electrical current with no loss at unexpectedly high temperatures, scientists have been looking for other unconventional superconductors that could operate even closer to room temperature. This would allow for a host of everyday app
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Date:
07/08/2021
Advancing Understanding of new Solar Panel Technology

Joshua Stein, front, a Sandia National Laboratories engineer and director of a new Perovskite Photovoltaic Accelerator for Commercializing Technologies Center, and Charles Robinson, a Sandia technologist, examine a solar module. The new center will determine the best performance and reliability tests for perovskite solar modules.

The Department of Energy recently awarded $14 million to form a Sandia National Laboratories-led center to improve the understanding of perovskite-based photovoltaic technologies and determine the best tests to evaluate the new solar panels' lifetimes. The efficiency of perovskite-based solar cells has reached 25%
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Date:
07/08/2021
DC-DC Converter Range Offers up to 6kV Output from 24V input
There are a huge variety of requirements for power supplies. While the majority of consumer systems can be powered from standard off-the-shelf power supplies and USB-C chargers, there are many other systems that require highly specialised equipment. Some of these, like industrial drives, need very large amounts
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Date:
07/06/2021
Würth Expands Popular Transformer Series
This series of parts can be used in a host of push-pull and pulse transformer applications, and is found on dozens of reference designs.   The four parts added to the MID-PPTI series include 750317828, 750317829, 750317830, and 750317331; all which are AEC-Q200 qualified, and include and isolation vol
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Date:
07/01/2021
Fully Integrated Doherty Power Amplifier Devices
Supplied in 50Ohm in/out packages with compact dimensions (measuring 7mm x 7mm), the company’s LGA series power amplifiers are capable of achieving industry-leading performance parameters. The high-gain devices in this series cover frequencies all the way from 700MHz through to 4.1GHz. Each features a 3-stage
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Date:
07/01/2021
ROHM’s New 80V Withstand 5A Output Power Supply ICs
Recent years have seen evolving markets of battery-driven applications and advanced industrial equipment such as 5G base stations and factory automation systems equipped with new functions utilizing IoT. This demands power supply ICs that are not only compact and operate at high efficiency, but also deliver lar
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Date:
07/01/2021
TRENCHSTOP 5 WR6 family in TO-247-3-HCC housing
The family comes in a TO-247-3-HCC package and offers a broad portfolio comprising 20 A, 30 A, 40 A, 50 A, 60 A and 70 A current ratings. The devices can easily be used for replacing previous technologies like Infineon’s TRENCHSTOP 5 WR5 and HighSpeed 3 H3 as well as competitor technologies. The family is optimi
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Date:
07/01/2021
A Real Power Fusion
In this magazine, we tend to concentrate on renewable energy resources as that is when most modern innovation comes from. The companies I usually talk to also focus in that direction, for example, last week I talked to Infineon about the company’s newly developed CoolSiC module that accommodates both wind en
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Date:
07/01/2021
Increasing Energy Storage: We Can’t Take Short Cuts
The need for energy storage is growing tremendously, and battery applications are everywhere – from cell phones to handheld power tools, to electric vehicles using grids tied to alternative energy. Meanwhile, the boundaries between storage cells and supercapacitors are getting blurred. Supercapacitors are ta
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Date:
07/01/2021
It's All Downhill From Here

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Compared to fossil-based fuel, electricity is clean, easily stored, and much more renewable. It is also easier to make if you have the right equipment. As it turns out, electric motors also make great generators, so why not use the momentum of your vehicle to top up your battery? That’s exactly what regenerative br
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Date:
07/01/2021
Battery Management for Li-ion based Power Tools

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Figure 1 - Cordless tools must “feel” functionally the same as their corded counterparts

Battery management is a key design consideration for all products with batteries, but it’s especially important for products with rechargeable batteries or high power demands. One such application is lithium-ion based power tools. Lithium-ion batteries are the most popular type of battery for cordless power too
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Date:
07/01/2021
New Wide Band-gap Semiconductor Technology Increases Power Conversion Efficiency

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Figure 1: Typical EV power conversion elements

Ask any power electronics designer what they strive for and top of the list is normally conversion efficiency. It’s not just for energy savings but also the knock-on benefits of smaller, lighter and cheaper products, with options opening up for better reliability and more functionality in space that’s freed-up. So
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Date:
07/01/2021