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由于其高压和大电流特性,IGBT用作电机驱动系统、不间断电源(UPS)、电磁炉和其它应用的开关器件。
图(a)显示了一个电机驱动电路的示例。IGBT广泛用作逆变器电路中的开关器件(用于DC-AC转换),以驱动小型至大型电机。适合逆变器应用的IGBT用于空调和冰箱等家用电器、工业电机和车载主电机控制器,以提高其效率。
图(b)显示了一个UPS电路的示例。IGBT采用中容量和大容量(几kVA或更大容量)型号,有助于实现高效率和节省空间。
图(c)显示了一个感应加热(IH)电路的示例。感应加热使用LC谐振执行零电压开关(ZVS)或零电流开关(ZCS),以减少开关损耗。由于谐振电压或谐振电流高,因此通常使用IGBT。IGBT的具体应用包括电磁炉、电磁电饭煲和微波炉。