As system voltages in EV powertrains increase to enable the use of higher power levels without creating excessive currents and the associated energy losses and heat dissipation problems, so does the importance of wide bandgap semiconductors, writes Peter Donaldson. Ones such as silicon carbide (SiC) and gallium nitride (GaN) in applications such as traction inverters, DC-DC converters and onboard chargers. Read more…