New BorgWarner Onboard Battery Charger Uses Silicon Carbide Technology

BorgWarner Inc., a large automotive supplier based in Auburn Hills, has introduced a new onboard battery charger for plugin and hybrid electric vehicles that uses silicon carbide technology for improved power density.
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BorgWarner onboard battery charger
BorgWarner has introduced an onboard battery charger for plugin and hybrid electric vehicles. // Image courtesy of BorgWarner

BorgWarner Inc., a large automotive supplier based in Auburn Hills, has introduced a new onboard battery charger for plugin and hybrid electric vehicles that uses silicon carbide technology for improved power density.

The charger is installed in hybrid or electric vehicles to convert alternating current (AC) from the power grid to direct current (DC) for charging batteries. This technology accepts an extended range of AC inputs including 7.4 kilowatt (kW), 11 kW, and 22 kW power ratings with DC-to-DC converter rating integration from 2.3 kW to 3.6 kW as an option. It is compatible with all battery chemistries and voltages of 400 volts, 650 volts, and 800 volts.

“Our technical center in Lugo, Italy, is dedicated to designing onboard battery chargers that are uncompromisingly suitable for the global electric and hybrid vehicle markets,” says Joel Wiegert, president and general manager at BorgWarner Morse Systems. “We are proud that our latest offering with its silicon carbide technology provides maximum power conversion efficiency, thus saving energy and delivering an extended range for vehicle manufacturers and their customers.”

BorgWarner says its onboard battery chargers are designed to meet the regulatory standards in many countries and regions including the U.S., the European Union, Japan, and China. They feature isolation between main input and DC output, are waterproof, dustproof, have an ISO 26262 safety rating, and are contained in a liquid-cooled IP6K96 enclosure, the company says.

For future applications, BorgWarner says its engineering team is targeting further advances in power density, charging power, efficiency, volume weight, power factor, and the adjustment of safety levels to meet various national and regional standards.

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