ORNL’s Omer Onar, left, power electronics research lead, discusses the 270-kW wireless charging system’s lightweight polyphase electromagnetic coupling coil, pictured in foreground, with Lee Slezak, ...

Oak Ridge National Laboratory used a Porsche Taycan for the test, designing the most lightweight charging system in the world per kilowatt. Inductive charging has shown promise in the past, but in the ...

The possibilities of alternating current by no means stop with using a single source. Ordinary household current in the US is at 60 Hz and about 120 volts. We have, in other words, a single undulating ...

42 Technology (42T) has unveiled what it describes as a 'novel technology' that provides robust and accurate polyphase metering, but with system costs claimed to be up to 30% lower than currently ...

THE first edition of this work appeared in 1904. Since then remarkable advances have been made in electrical engineering. A foremost place in this progress must be given to electric motors, and more ...