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Using 650 V High Speed 3 IGBTs in Power Modules for Solar Inverter Performance Improvement

For applications which require an output filter or have a booster/buck choke, higher switching frequencies can lead to advantages on system level. One application where both can be found is a solar inverter. At the state-of-the-art efficiency and power density, high cost pressure can be observed for solar inverters. The High Speed IGBT is optimized for highfrequency hard-switching applications. Therefore, this device is an ideal choice for power modules which are used in solar applications. In this paper, the difference between the 650-V IGBT3, 650-V IGBT4 and the 650-V High Speed 3 (HS3) IGBT from Infineon Technologies used in power modules will be described. It will be shown that due to the device design, the 650-V HS3 IGBT provides a superior performance and can be used as a high-efficiency switch. The requirements to achieve this high efficiency by using the 650-V HS3 IGBT will be explained as well.

• 1.18 MB
• 2014/02/11