Posts Tagged: Power Electronics

Dana launches new integrated motor and inverter

Dana has launched the TM4 MOTIVE, an integrated motor and inverter for the light vehicle market. The TM4 MOTIVE includes a high-RPM permanent magnet electric motor, power-dense electronic inverter, and advanced controls. The system weighs 110 pounds and is scalable up to 150 kW and 11,000 rpm, according to the company. The integrated inverter is… Read more »

Fraunhofer and Hitachi Metals create on-board charger with 3.8 kW/l power density

The Fraunhofer Institute and Hitachi Metals say they’ve produced an on-board charger (OBC) prototype that delivers both high power output and compactness by using soft magnetic materials developed by Hitachi. Hitachi says the technology enables the OBC prototype to generate a power density of 3.8 kW/l. Hitachi explains that there is typically a trade-off between… Read more »

Nidec adds 100 kW and 70 kW models to E-Axle lineup

Japanese electric motor company Nidec has developed two smaller versions of its fully-integrated traction motor system, E-Axle. It has also announced a new short-range radar that doubles as a proximity sensor for automatic parking systems. Nidec first introduced the E-Axle system in April 2018 as a 150 kW system, composed of an integrated electric motor,… Read more »

Motor maker YASA launches 200 kVA controller

YASA, a UK manufacturer of axial-flux electric motors, has announced availability of the first in a new series of motor controllers for EVs and PHEVs. The Si400 controller delivers 200 kVA from a 5-liter package. The 12.8 lb controller features thermal management, including dielectric oil cooling, and is compatible with induction, permanent magnet and axial-flux… Read more »

Bel introduces 25 kW on-board charger for off-grid industrial and mining operations

Bel Power Solutions, a manufacturer of power management devices, is now manufacturing a 25 kW on-board battery charger for industrial, construction, and mining applications. The charger, known as the BCN25-700-8, converts 3-phase AC voltage to DC voltage. It measures 20.63” x 13.39” x 3.31” and weighs 42.77 pounds. The enclosure is made of aluminum alloy… Read more »

Study shows gallium oxide could enable cheaper power electronics

Researchers from the National Renewable Energy Laboratory (NREL) have modeled the wafer cost of gallium oxide (Ga2O3) semiconductors, and determined the cost could be three times lower than that of silicon carbide (SiC). The finding could lead to lower costs for power electronics such as those used in EVs. The researchers created a bottom-up cost model… Read more »

VisIC publishes reference design for its GaN on-board charger

Israel-based VisIC Technologies, a manufacturer of gallium nitride (GaN) power semiconductor devices for the auto, data center and industrial markets, has published a reference design aimed at the EV industry for its on-board charger (OBC) that uses its GaN technology. The 6.7 kW OBC has a volume of 2.3 liters and weighs 4.5 kg, providing… Read more »

A closer look at the losses in EV motors

  In the bad old days when the only batteries suitable for traction applications were flooded lead-acid and Ni-Cd types, the battery was the least efficient component of an EV powertrain, routinely delivering back only 50-70% of the amp-hours that went into charging it (aka the Coulometric efficiency). When you knew you were going to… Read more »

Transphorm’s latest GaN transistor passes automotive qualification

Semiconductor provider Transphorm has announced that its third-generation high-voltage gallium nitride (GaN) field-effect transistor (FET) has passed AEC-Q101 stress tests for automotive-grade discrete semiconductors. The transistor targets EV applications including on-board chargers, DC-DC converters, and DC-AC inverter systems. Transphorm’s new FET, the TP65H035WSQA, performed at 175° C during AEC-Q101 qualification testing, which the company says… Read more »