GaN Enables Efficient, Cost-effective 800V EV Traction Inverters
For EVs, the semiconductors used in traction inverters have a significant impact on efficiency, power density, and cooling requirements. The three-phase AC motors used in today’s EVs run at voltages up to 1,000V and switching frequencies up to 20 kHz. This is very close to the operational limits of the silicon-based metal-oxide semiconductor field-effect transistors (MOSFETs) and insulated-gate bipolar transistors (IGBTs) currently used in traction inverters. Without a significant technical breakthrough, silicon-based MOSFETs and IGBTs will have difficulty meeting the higher operational requirements of next-generation EVs…
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