SiC is quickly taking the market share originally occupied by Si IGBT in electric vehicles

时间： 2021-10-14 来源：fastSiC

技术问答

SiC power devices have long been considered a perfect fit to electric vehicles (EVs). Toyota is the first to start road trials using SiC MOSFETs to drive traction motor in 2015.Later, Honda's fuel cell vehicles Clarity became the first mass-production vehicles adopting SiC instead of Si for the main inverter in 2017.Honda Clarity Fuel Cell，the Ultimate Zero-emissions Vehicle Technology and EPA Range of 366miles, up 58 Percent over the Previous Model.

And then, in 2018, Tesla became the first electric vehicle (EV) maker using SiC MOSFETs to replace Si IGBT in main inverters for its Model 3. Because of the popularity of Model 3 (total sales in 2019 over 300,000, about 13.6% of global plug-in vehicles sales), SiC is quickly taking the market share originally occupied by Si IGBT in electric vehicles.

Tesla Model 3 uses 24 small modules of 650V SiC MOSFETs provided by ST Microelectronics for its 150kW main inverter. Other major SiC manufacturers such as Cree/Wolfspeed, Rohm and Infineon have also announced collaborations with other automakers and tier 1 automotive suppliers.

With SiC inverters, it is possible to extend the range of EVs by 6~10% with the same size of battery pack, or maintain the same range with a smaller battery because of its high efficiency and high frequency operation capability. This gives automakers incentives strong enough to replace traditional Si parts even though SiC MOSFETs are still more expensive than Si IGBTs. It is unclear how soon other automakers will keep up with Tesla to replace Si IGBTs by SiC MOSFETs in their EVs, but it can be sure that SiC will continue to replace Si in EVs, not just in main inverters, but also on-board chargers (OBC) and DC/DC converters, probably faster than anticipated.New Silicon Carbide Semiconductors Bring EV Efficiency Gains.

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Diotec Semiconductor offers new SiC MOSFETs in TO-247 with 3 or 4 Leads, highly suitable for EV charging systems for electric vehicles, solar inverters, and telecom power supplies.

产品发布时间 : 2024-03-06

ROHM‘s 4th Generation SiC MOSFETs to be Used in Hitachi Astemo‘s Inverters for Electric Vehicles, Contributing to Longer Cruising Range and Smaller Systems in Electric Vehicles

ROHM has recently announced the adoption of its new 4th Generation SiC MOSFETs and gate driver ICs in electric vehicle inverters from Hitachi Astemo, Ltd., contributing to longer cruising range and smaller systems in electric vehicles both in Japan and overseas from 2025.

厂牌及品类发布时间 : 2023-01-12