Power Electronics

Grid

Multi-kilowatt superconductors

Researchers in Germany have developed a coil with superconducting wires that are capable of transmitting up to 5 kW of power with minimal losses (writes Nick Flaherty). The team, at the Technical University of Munich, worked with Wurth Elektronik eiSos and superconductor coating specialist Theva Dunnschichttechnik on the design of a coil which they believe […]

New Products

Dow launches conformal coating for harsh environments

Dow has unveiled a new conformal coating it calls Dowsil CC-2588. It is an abrasion-resistant silicone-based material that protects PCBs and electronic components against high humidity and corrosion. The coating is virtually odourless and cures at room temperature. It can be sprayed on in a single pass and dries to a film thickness of 50-200 […]

Dossier

Candela C-7 speedboat

Hydrofoiling gives this serial production boat high speed and long endurance. Rory Jackson examines the engineering decisions behind its design

Digest

Riversimple Rasa

Rather than go all-out on the technology, this EV has been conceived with reusable components – and the circular economy – in mind. Rory Jackson reports. End-to-end sustainability is a troublesome target for EV engineers to track. Reducing vehicle emissions at the point of use is easy enough, but reducing the emissions...

In Conversation

Andrew Cross

Integral Powertrain’s CTO tells Rory Jackson how he has come to lead the company’s development of high performance consumer EV drives. One of Andrew Cross’ most prominent early memories is the engineering company his father owned and ran, designing and manufacturing polymer parts, and developing much of his own production systems and tooling...

Dossier

Irizar Group ie truck

Rory Jackson investigates the development of this electric/hybrid refuse truck, which is already operating in various European countries. Developing heavy EVs for urban applications, where regulations on emissions and noise are the strictest of any operating environment, requires a wealth of research...

Deep Insight

Vehicle-to-grid charging

Although bidirectional charging for EVs remains a niche technology, writes Nick Flaherty, progress on its uptake is being made. Vehicle-to-grid (V2G) charging is an appealing technology, as it enables EV batteries to be used as part of the electricity grid to even out demand. For example, electric car owners could charge their...

Focus on...

Power Electronics

Nick Flaherty explains the three types of switching technologies for inverters and how to match them to a given inverter design. Power electronics is of course a key technology for e-mobility systems, and the development of their components is a vital part of the evolution...

Dossier

Energica Eva Ribelle

Rory Jackson explores how this e-bike combines the efficiency for urban commuting with the performance for recreational use. Since its founding in 2014, the Energica Motor Company has sought to combine cuttingedge electrical engineering with designs that capture the ergonomics and aesthetics needed to thrive in the world...

Focus on...

DC-DC converters

Peter Donaldson investigates the technology that underpins these essential voltage switching devices. In modern pure electric and hybrid vehicles, battery voltages of 300- 400 V is becoming common, 600 V is gaining ground and 800 V systems are starting to emerge, all to help produce more power yet keep...

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