BorgWarner has introduced the On-board Battery Charger (OBC) for plug-in hybrid and pure-electric vehicles. The OBC uses the silicon carbide technology for enhanced power density, power conversion efficiency and safety compliance and has been designed in the company's technical centre in Lugo, Italy. The OBC converts alternating current (AC) from the power grid to direct current (DC) for charging batteries and can accept 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.
BorgWarner OBCs are designed to meet the standards for use in many countries and regions including the US, the EU, Japan, and China. They have good isolation between main input and DC output, are waterproof and dustproof, have an ISO 26262 safety rating and are contained in a liquid-cooled IP6K96 enclosure. The OBCs with a rated charging power of 7.4 kW can also be used for charging powers of 1.8 kW, 3.3 kW and 6.6 kW and uses a single-phase supply from the power grid. The OBC with a rated charging power of 11 kW is more efficient with its three-phase grid supply and fast charging strategy, while the on-board charger rated at 22 kW is even more efficient with its three-phase supply and therefore much faster charging, claims the company. It is compatible with all battery chemistries and voltages of 400 volts, 650 volts and 800 volts.
Joel Wiegert, President & General Manager, BorgWarner Morse Systems, said the silicon carbide technology provides maximum power conversion efficiency, thus saving energy and delivering an extended range for vehicle manufacturers and their customers.