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Posts Tagged: EV Power Electronics

Researchers receive grant to develop universal onboard fast charger

A pair of professors at the University of Maryland Energy Research Center have been awarded a three-year, $460,000 grant from the National Science Foundation to develop an onboard fast charger for EVs. Professors Alireza Khaligh and Patrick McCluskey are collaborating with Steven Rogers of Genovation, an EV builder in nearby Rockville, Maryland on the project,… Read more »

A closer look at torque ripple – minimizing its effects on electric machines

The Switched Reluctance Motor, or SRM, is often discussed as a prime choice for the next-generation EV traction motor. It is simple, robust, and arguably the least expensive of all motor types to manufacture. However, SRMs are notoriously difficult to control, and prone to emitting significant amounts of vibration and acoustic noise. The good news… Read more »

Lux Research: Infineon is a “clear winner” in power electronics field

Batteries get most of the press, but power electronics (gadgets like inverters, onboard chargers and DC/DC converters) are critical components of all sorts of electrified vehicles as well as high-tech energy solutions. As the electromobility/clean energy sector grows, leading companies in the power electronics field could be poised for major growth. Lux Research recently released… Read more »

DOE to fund graduate-level training programs in power electronics

The DOE has announced up to $10 million in funding to establish graduate-level training programs for engineers in power electronics. The five-year program will begin in the fall 2016 school year. Citing the important part that power engineers play in advanced energy technologies, the DOE expects them to be in high demand in the growing… Read more »

New device dynamically reduces offset error in DC current measurement

New York-based battery management specialist Sendyne has obtained a patent for an invention that dynamically reduces offset error in shunt-based DC current measurement systems. Offset error – an erroneous value read by the measurement system when the actual current is zero – has a significant impact when Coulomb counting information is utilized for State-of-Charge (SOC)… Read more »

Dana kicks copper to the curb in favor of all-aluminum cooling products for EVs

In 1982, the US Mint made the practical decision to change the composition of the penny coin from 95% copper/5% zinc – an alloy you know as brass – to 97.5% zinc with copper plating. Inflation had pushed the price of copper in a penny above one cent, and zinc was significantly less expensive and… Read more »

Railcar traction inverter with SiC power modules achieves 40% power savings

Mitsubishi Electric Corporation, which has been testing a traction inverter made with silicon carbide (SiC), has announced that the component has demonstrated a savings in power consumption of around 40%. The traction inverter was installed in a 1000 series urban train in commercial service with a Japanese railroad, and was tested over a four-month period…. Read more »

Report: EV makers slowly increasing power capacity of onboard chargers

In quest of faster charging times, some EV-makers are gradually raising the power capacity of their vehicles’ onboard chargers. However, a new analysis from Frost & Sullivan predicts that onboard chargers with power ratings between 3 and 3.7 kW will remain the norm, especially in lower-end models, and will account for 62 percent of sales in… Read more »

Developer of gallium nitride power switching semiconductors raises $20 million

GaN Systems Inc., a developer of gallium nitride power switching semiconductors, has closed a $20-million Series C financing round. The company will use the new money to ramp up sales and marketing efforts and to continue expanding its manufacturing line. GaN Systems says its Island Technology results in devices that are smaller and more efficient… Read more »

Sevcon secures grant to develop new generation of controllers

Sevcon (Nasdaq: SEV), a global manufacturer of controls for electric and hybrid vehicles, has received a £400,000 grant from a UK government fund, which it will use to develop the next generation of its Gen4 controller. The new low-voltage controller will provide additional functionality and improved performance in a smaller package than its predecessor. “The… Read more »