Posts Tagged: EV Power Electronics

Qorvo says its new SiC FET product line has best-in-class figures of merit for on-resistance

Radio frequency technology company Qorvo (formerly UnitedSiC) has announced a new SiC Field Effect Transistor (FET) product line, which it says has best-in-class figures of merit for on-resistance. The FET is designed for the 800 V bus architectures in the onboard chargers of EVs as well as industrial battery chargers, industrial power supplies, DC/DC solar… Read more »

Eaton introduces new line of DC-DC converters for commercial vehicles

Eaton has introduced a new line of DC-DC converters designed for the electrical systems of commercial vehicles. “DC-DC converters are an essential part of our eMobility product portfolio and are used in a variety of vehicle applications,” said Director of Technology Development for Eaton’s eMobility business Ben Karrer. “Many commercial vehicle manufacturers are transitioning to… Read more »

Mersen launches free online tool for designing bus bars

Mersen has introduced a free-access online tool for calculating the specifications of laminated bus bars. The Bus Bar Calculator is intended to support the design of bus bars in a range of different power converters. The new product relies on a physics solver developed by Gamma Technologies called GT-PowerForge to calculate the electrical, thermal and… Read more »

Rhombus Energy Solutions to use Wolfspeed’s silicon carbide devices

Rhombus Energy Solutions, a provider of EV charging and power conversion technology, has announced that Wolfspeed (NYSE: WOLF) will supply its EV2flex line of charging products with silicon carbide MOSFETs, improving the products’ efficiency, power density and charging times. Wolfspeed’s 1,200 V silicon carbide MOSFETs will power Rhombus’s new EV2flex-120 charging infrastructure. Rhombus’s EV2flex charging… Read more »

Silicon carbide is becoming the material of choice for EV power electronics

Silicon carbide is a hot topic in the power electronics field these days. As a recent article in the New York Times explains, SiC is a wide-bandgap (WBG) material that designers are increasingly choosing to make power electronics devices more efficient. WBG advantages The WBG classification has profound implications for device behavior and performance. This… Read more »

How a motor’s operating speed, torque and control strategy affect its efficiency

Second only to power output, efficiency is one of the most fudgeable ratings that applies to traction motors for EVs (right up there with capacity and cycle life claims for Li-ion batteries…). For common 3-phase industrial AC motors, most of the specmanship shenanigans have been dealt with by NEMA (National Electrical Manufacturers Association), a voluntary… Read more »

Renesas to boost semiconductor production at Japanese factory

Japanese semiconductor manufacturer Renesas Electronics is planning to restart a wafer fabrication operation at its Kofu factory in Kai City, Japan. The Kofu factory housed 150 mm and 200 mm wafer fabrication production lines before it was closed in October of 2014. Now Renesas Electronics is investing 90 billion yen ($705 million) to set up… Read more »

Wolfspeed opens silicon carbide semiconductor fab facility in New York

Silicon carbide and gallium nitride technology company Wolfspeed has opened a silicon carbide semiconductor wafer fabrication facility in Marcy, New York. Wolfspeed calls the automated facility “the world’s first and largest 200 mm silicon carbide fab, providing uncompromised wafer quality and higher yield.” In April, the facility produced its first batch of silicon carbide semiconductor… Read more »

Littelfuse’s new high-current, high-voltage cartridge fuse is designed for EV charging

Circuit protection specialist Littelfuse has unveiled a new high-current, high-voltage, compact cartridge fuse designed for overcurrent protection in EV charging equipment. The 607 Series is rated at 500 V, from 40 to 63 A, and has a 10,000 A interrupting rating. Littelfuse is offering the through-hole fuses in tray packages of 500. The fuses work… Read more »