In recent years, due to increased environmental awareness and rising fuel costs, more and more automakers have begun producing electric vehicles. The increasing number of electric vehicles has driven the demand for electric compressors, which are often driven by IGBTs. Internal combustion engine vehicles use the heat emitted by the engine itself as a heat source for the cabin. However, the demand for various systems that use PTC heaters as heat sources to circulate warm water for heating has been increasing, and low drive frequency IGBTs are usually used in inverters and switches in such applications. Since the power consumption of compressors and heaters will greatly affect the driving range of electric vehicles, there is a need to improve the efficiency of compressors and heaters.

　　In addition, another trend in the market is to increase the cruising range of electric vehicles by increasing battery capacity. Especially in Europe, high-voltage batteries (800V) require low-loss, high-voltage power components, which also increases the demand for 650V withstand voltage and 1200V withstand voltage IGBTs.

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