ROHM Semiconductor has announced that Lucid will be using its silicon carbide metal-oxide-semiconductor field-effect transistor (SiC MOSFET) in the ground-breaking Lucid Air that is a state-of-the-art luxury sedan with a California-inspired design underpinned by race-proven technology. The Wunderbox which is the main on-board charging unit in the Lucid Air integrates a DC-DC converter and the Bi-directional On-Board Charger (OBC), where an advanced power factor correction circuit is capable of operating at high switching frequencies thanks to the superior performance of the SiC MOSFET.
The improved performance at high frequency and high temperature of ROHM’s SCT3040K and SCT3080K SiC MOSFETs have helped Lucid to reduce the size of the design and to reduce power losses, which results in high charging efficiency. When connected to DC fast chargers, it takes approximately 22 minutes to deliver a charge which will enable select Lucid Air models to cover 300 miles. The SiC MOSFET switched OBC can deliver up to 19.2 KW AC charging, adding up to 80 miles of range per hour.
