Vitesco Technologies join forces with ROHM Semiconductor for silicon carbide (SiC) inverters.
Vitesco Technologies, the powertrain business area of Continental, selected the Japanese electronics company ROHM Semiconductor as the preferred supplier of silicon carbide (SiC) power devices.
Using ROHM’s SiC power modules, Vitesco intends to produce EV power electronics for both 400 V and 800 V battery systems. Series production of SiC inverters will start in 2025.
“Vitesco Technologies is already developing and testing SiC technology in an 800-volt inverter concept to confirm the efficiency potential of the technology. The approach of this program is to look at the complete system of inverter and motor to identify the best combination of device technology and switching strategy.”
The next step towards efficient electromobility: Vitesco Technologies cooperates with ROHM in the field of SiC technology.
The SiC power electronics have very high efficiency (higher frequency, steeper switching slopes, fewer harmonic losses in the electric motor), which allows them to produce smaller and lighter inverters or chargers.
Vitesco explains that the 800-volt system is also a key for ultra-fast charging, as the current is halved compared to the 400-volt systems (at the same power).
Beyza Sarioglu, Head of Electrification Technology for Vitesco Technologies North America said:
“Energy efficiency is of paramount importance in an electric vehicle. As the tractional battery is the only source of energy in the vehicle, any losses caused by power conversion need to be minimized. We are therefore developing a SiC option within our modular power electronics system. To get the maximum efficiency out of the power electronics and the e-motor, we will use SiC power devices from our preferred partner, ROHM.”
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