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This paper compares Silicon Carbide (SiC) MOSFET and IGBT based electric vehicle (EV) traction inverters by considering the cost and efficiency of these two inverters. Commercially available SiC MOSFET CCS50M12CM2 (1200V / 50A) from Cree and IGBT PM50RL1A120 (1200V / 50A) from Powerex are modeled in detail in PSIM to obtain efficiency curves of inverters under different load conditions. The gained...
Silicon carbide (SiC) based devices are known to outperform Si devices in many aspects, such as lower power dissipation, higher operating temperatures, and higher switching frequencies. SiC devices will benefit hybrid vehicles when applied into the DC-DC converters and inverters as part of the electrical power conversion needed to drive the powertrain. Nevertheless, SiC devices can suffer from oscillations...
We describe an all-SiC 0.25 MHz 5 kW multiphase dc/dc bidirectional boost converter that serves as a charger for the intermediate high-voltage energy storage device (e.g. ultracapacitor) in a plug-in-hybrid vehicle (PHEV). The primary focus of this paper is to report the high-temperature efficiency of the SiC VJFET and SiC Schottky based robust converter and identify the key loss components.
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