The low voltage power architecture used in EV traction inverters drives control electronics and provides gate driver power for the main traction IGBTs/MOSFETs. It must also provide redundancy to meet ASIL requirements. This requirement represents a special challenge as it means the Emergency Power Supply (EPS) must operate from low voltage and high voltage sources… Read more »
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GM and Wolfspeed partner to develop silicon carbide power devices
General Motors and Wolfspeed (formerly Cree) have entered an agreement to develop and provide silicon carbide power devices for GM’s electric vehicle programs. The silicon carbide will be used in the integrated power electronics contained within GM’s Ultium Drive units. The silicon carbide power devices will be produced at Wolfspeed’s 200 mm-capable Mohawk Valley Fab… Read more »
GaN Systems to supply power transistors to BMW
Gallium nitride power semiconductor developer GaN Systems has signed a comprehensive capacity agreement with BMW for the company’s GaN power transistors, which are designed to increase the efficiency and power density of critical applications in EVs. GaN Systems will provide capacity for multiple applications in series production. The guaranteed volumes are a building block for… Read more »
Australian mine operator buys Wabtec’s FLXdrive battery-electric locomotive
In July, Wabtec (NYSE: WAB) announced that its FLXdrive battery-electric locomotive delivered an 11 percent reduction in fuel consumption and greenhouse gas emissions in a three-month pilot with BNSF Railway. Now Wabtec has made a sale to Australian mine operator Roy Hill, to be delivered in 2023. The company will receive the newest version of… Read more »
Solid Power to build new solid-state battery plant in Thornton, Colorado
Solid Power, a producer of all-solid-state EV batteries, plans to build a second Denver-area production facility in Thornton, Colorado. The new plant will expand Solid Power’s capacity to produce materials for its battery cells, including the ability to produce up to 30 metric tons of sulfide-based solid electrolyte material annually—a 25x throughput increase over current… Read more »
GreenPower’s BEAST electric Type D school bus features an integrated body and chassis design
GreenPower Motor Company (NASDAQ: GP), a manufacturer of EVs serving the cargo and delivery, shuttle, transit and school bus markets, unveiled a new purpose-built electric school bus at the recent Advanced Clean Transportation Expo in Long Beach, California. The BEAST (Battery Electric Automotive School Transportation) is a 40-foot Type D battery-electric school bus that can… Read more »
Dana begins production of new e-Axle, expands powertrain lineup for medium- and heavy-duty EVs
Automotive supplier Dana (NYSE: DAN) will begin production of its eS9000r e-Axle—the first in a line of Spicer Electrified Zero-6 e-Axles—to support the market launch of the Freightliner Custom Chassis Corporation (FCCC) all-electric MT50e medium-duty last-mile delivery vehicle. Designed with a custom Spicer S130 rear drive axle, the propulsion system for the MT50e application is… Read more »
Schaeffler shows 800-volt power electronics and thermal management system
At the upcoming IAA Mobility 2021 trade show in Germany, automotive supplier Schaeffler will present an 800-volt power electronics system for electric axle applications in high-performance vehicles. The system enables continuous outputs of up to 330 kW and short-term peak outputs of up to 500 kW. The achievable power density can reach 70 kW per… Read more »
UCAP Power acquires ultracapacitor-related assets from Maxwell Technologies
UCAP Power, a San Diego-based developer of ultracapacitor-based power solutions, has purchased the Korean-based ultracapacitor business of Maxwell Technologies, along with other related assets, including the Maxwell brand. Maxwell Technologies is probably best known for being acquired by Tesla in 2019, which many believed had less to do with its pioneering work with supercapacitors (aka… Read more »
Nexperia’s new 40 V MOSFETs for automotive and industrial applications
Nexperia has announced new 0.55 mΩ RDS(on) 40 V power MOSFETs in the LFPAK88 package for automotive (BUK7S0R5-40H) and industrial (PSMNR55-40SSH) applications. The company says the devices are the lowest RDS(on) 40 V parts it has ever produced. They deliver higher power densities than traditional D2PAK devices and offer improved performance in both avalanche and… Read more »