Tech Features

Churning out EVs: TDK has built a fully automated manufacturing line for its DC link capacitors

Raw materials in one end, pallets full of power film capacitors out the other For companies that produce products used for electric power conversion, EVs represent a huge new market, potentially much bigger than any other existing industry. Those who have realized the potential and invested early are now positioning themselves as leaders in automotive… Read more »

Top circuit protection considerations for DC fast chargers, a new class of high-voltage consumer electronics

DC fast charging isn’t just a godsend for EV drivers looking for a quick charge. It’s also an entirely new level of consumer electronics. “You and I, as members of the general public, have previously never had access to anything higher in voltage than what we see at home in our wall socket,” Tim Patel, Global… Read more »

Top causes of failure in power semiconductors

All electronic devices eventually die, and the failure can be quite spectacular if suitable foresight and care was not employed during the design and construction phases, especially if the device handles high power or is supplied by a large battery. It should go without saying that both conditions apply to much of the electronics inside… Read more »

Motor manufacturing: Tempel builds state-of-the-art factories to meet automaker’s requirements

Stamping precision parts for automotive-grade motor manufacturing The demands of the automotive industry are unlike any other. Carmakers require that their suppliers deliver millions of parts with incredibly tight tolerances that will not fail after a decade of daily use. The companies that manufacture parts for ICEs have grown increasingly sophisticated and disciplined in the… Read more »

Regenerative braking: A closer look at the methods and limits of regen

All motors are generators, the old saying goes, with the caveat that few types are equally good at both modes of operation, and some are downright awful as generators (a classic example being the single-phase shaded pole induction type, used in myriad small appliances the world over). Fortunately, both types of AC motor commonly used… Read more »

Charge like A supercap, store like a battery: ZapGo’s carbon-ion technology

Imagine an EV that could add 300 miles of range with a 5-minute charge – roughly the same amount of time it takes to refuel an ICE vehicle. Many companies are working on technologies to enable faster charging, which would be a huge win for EV adoption. ZapGo, based in Oxford, UK and Charlotte, North… Read more »

Heraeus helps companies learn to use cutting-edge materials to improve EV electronics

In addition to sophisticated new material solutions, Heraeus offers engineering services to customers to help bring next-generation products to market faster and increase the overall module reliability. When it comes to making the most efficient EVs possible, materials matter. Nobody knows that better than Heraeus, a German-based technology group that has a stake in global… Read more »

Top circuit protection requirements to consider when designing an automotive battery pack

Littelfuse helps the auto industry navigate new electrical engineering challenges When engineers design a battery pack, they tend to focus first on its core functionality and value proposition. For a high-end energy storage device, those core attributes are typically things like total pack energy density, cost minimization, packaging efficiency, peak power and state-of-the-art thermal management…. Read more »

A closer look at film capacitors

Plastic film capacitors relentlessly continue to take over many of the duties in EV power electronics that were once performed by the venerable aluminum electrolytic type, mainly because film capacitors exhibit much lower losses and have a much longer operational lifespan, especially at ambient temperatures in the 75-85° C range. The tradeoff is that film… Read more »