Tag Archives: traction

LEM has announced three-phase current sensors that fit silicon carbide power modules typically used in 800V vehicle traction inverters. “Developers of automotive traction inverters are increasingly using three-phase power modules such as Hybridpack Drive from Infineon, Acepak Drive from ST Microelectronics, SSDC from ON Semi, and others such as Starpower and CRRC,” according to LEM. “The current sensor offers current ...

San Jose based Pre-Switch is reporting 98.5% efficiency at 5% load from its 800Vin ‘CleanWave2’ prototype inverter. Peak efficiency is 99.57%. It is a 100kHz forced-resonant, soft-switching inverter, controlled by an AI algorithm (more on the technology here). “Over a year ago we announced peak efficiency of over 99%. Since that time, we have been improving our AI algorithm to ...

Aiming at electric vehicle traction inverters, LEM has managed to shrink a 1.5kA current sensor into 29 x 21 x 12mm and 27g. “HSTDR current sensor is significantly more compact than a traditional C-core sensor, making it much easier to be integrated into space-limited inverter boxes,” said LEM. The technology is open-loop Hall effect and the core, integrated bus bar ...

In the latest deal by a car maker in the scramble for silicon carbide, Volkswagen has signed a strategic agreement with onsemi to provide modules and semiconductors for the traction inverters for VW’s next-generation electric vehicle platform. Teams from the two companies, revealed onsemi, have been collaborating for more than a year to optimise power modules, and pre-production samples are ...

NXP is aiming at electric vehicles traction inverters for up to two motors with its S32K39 microcontrollers. “The MCUs support IGBT as well as SiC and GaN,” according to the company. “It has enough compute power to support six-phase or two three-phase motors controlled by dual 200 kHz control loops, while hosting AI, machine learning or other monitoring applications. It ...

The University of Nottingham has creates a business unit for the industrialisation of electrical motors and drive systems, claiming that it is the first UK institution to create an independent business unit for the industrialisation of electrical motors and drive systems. Nottingham Drive Specialist Services (NDSS) will provide “bespoke development, manufacturing and testing of electrical motors and drives to support ...

Infineon has introduced a 50kW automotive-qualified IGBT half bridge for electric and hybrid vehicles. Called FF300R08W2P2_B11A, and rated to 230Arms, it includes a pair of 750V IGBTs from the company’s EDT2 generation, optimised for 10kHz switching. “The chipset has benchmark current density combined with short circuit ruggedness for reliable inverter operation under harsh environmental conditions,” said Infineon. “The EDT2 IGBTs also ...

Powerbox has announced PSU that generates 110Vdc from a train traction-voltage line (700-1,500Vdc) to start traction electronics when a rail vehicle’s own battery is below minimum operating voltage. The ‘Low battery voltage start’ (LBVS) is designed for high safety isolation, will come in different versions for different power requirements and will provide a stable voltage from two seconds up to 60 ...

French firm Ez-Wheel has managed to pack an entire electric vehicle system into a wheel – battery, charger, converter and motor included. Nothing electrical need be fitted to the vehicle chassis. Intended to add powered traction to industrial trolleys, application are also proposed moving patients in hospitals and shifting food. “Ez-Wheel products are ready to operate in outdoor or indoor ...