Features

Knowles develops next-generation safety capacitors to meet the growing demand for 800-volt EV systems

As EV-makers continue to upgrade from 400 V to 800 V systems, parts suppliers have been hustling to keep up with the new specs. Knowles Precision Devices, for example, specializes in high-voltage capacitors—it’s a market leader in multi-layer ceramic capacitors rated from about 200 V up to 12,000 V. Looking back just 10 or 15… Read more »

Extreme E tackles tough terrain, promotes sustainable racing

Formula E, the FIA-sanctioned electric racing series, has been a powerful ambassador for the EV revolution—and a damn fine sporting event—since its opening season in 2014. Now some of the same team behind Formula E, including Alejandro Agag, Chairman of Formula E and now CEO of Extreme E, have gone off-road and off the chain… Read more »

BoostEV is an on-demand mobile EV charging network, like UberEats for hungry EVs

The EV ecosystem is a work in progress, and when it comes to charging infrastructure, there are some key pieces missing from the puzzle. There will surely be a need for some form of portable charging on demand, and this is the niche that SparkCharge is looking to fill with its new app platform, BoostEV…. Read more »

High-voltage EV battery packs: benefits and challenges. More voltage, more better?

In 2020, Porsche delivered just over 20,000 units of its luxury Taycan EV—the first vehicle from a major automaker to sport an 800 V (nominal) battery, which is more than double the voltage of its competitors (and firmly into light-rail and switchyard locomotive territory, actually). It appears that many other EVs will soon follow in… Read more »

Volvo XC40 Recharge and Polestar 2: EV cousins offer different takes on “premium”

You might not know it to look at them, but these two cars—one Swedish, one Chinese—share underpinnings and a parent company. Volvo and its Chinese parent Geely are very serious about selling cars that plug in. Starting in 2016, the Swedish brand has included plug-in hybrid versions of pretty much every new vehicle it sells… Read more »

Is aviation the best application yet for hydrogen fuel cells?

Q&A with ZeroAvia CEO Passenger cars are well on their way to going electric, and the path to a big market share for heavy-duty EVs such as buses and delivery trucks is becoming clearer. However, aviation remains a new frontier for zero emissions. There are several new powertrain options, and none has yet proven itself… Read more »

Daimler and PGE develop the electric truck stop of the future

The Electric Island project, a collaboration between Daimler Trucks North America and Portland General Electric, will be a test bed for all kinds of heavy-duty EV charging solutions. Electric trucks are finally starting to roll. After years of vehicle development, research projects and pilot deployments, major fleet operators around the world are beginning to place… Read more »

Isolation technologies for EV power electronics

A previous article on bidirectional chargers touched on using transformers to provide isolation at high power levels—in which application they are the only game in town, really—but this time the focus will be on achieving isolation at low power levels, such as the feedback signal in a regulator, data communication buses between devices, gate drivers… Read more »

An ENERGY STAR charger specification program update

The EPA’s ENERGY STAR label is one of the most widely known consumer symbols in the US. ENERGY STAR-certified products have helped consumers save an estimated $246 billion in energy costs since 1992, when the program began. In 2018, the ENERGY STAR program added EV chargers to the list of products that can earn its… Read more »

2022 GMC Hummer EV: the biggest, baddest, butchest EV to hit the market?

The news that General Motors would relaunch the infamous Hummer name—as an all-electric truck no less—broke a few days before the high-dollar, high-visibility 2020 Super Bowl ad that introduced that vehicle to the world. After a succession of carefully staged events for media and the public, we now know that the 2022 GMC Hummer EV… Read more »