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由于IGBT是采用电导率调制的双极开关器件,因此与单极MOSFET相比,其开关速度更低,尤其是其在高温下的关断时间更长。因此,IGBT导致了更高的开关损耗。
但另一方面,IGBT的优点是,即使在大电流和高温下,其也能轻松地实现高耐压,并具有相对较低的导通电压。
因此,使用硅材料制造的IGBT和MOSFET分别适合以下应用领域: