Wide bandgap (WBG) semiconductor devices and cryogenic cooling are key enablers for highly-efficient ultra-dense power electronics converters, which are critical for future more electric aircraft applications. For the development and optimization of a cryogenically-cooled converter, an understanding of power semiconductor characteristics, especially for emerging WBG devices, is critical. This paper focuses on WBG device characterization at cryogenic temperatures. First, the testing setup for cryogenic temperature characterization is introduced. Then several WBG device candidates (e.g., 1200-V SiC MOSFETs and 650-V GaN HEMTs) are characterized from room to cryogenic temperatures. The test results are presented with trends summarized and analyzed, including on-state resistance, breakdown voltage, and switching performance.
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机译:宽带隙(WBG)半导体器件和低温冷却是高效的超密集电源电子转换器的关键推动力,这对于未来的更加电动机应用至关重要。 为了开发和优化低温冷却转换器,对功率半导体特性的理解,特别是对于新兴WBG设备是至关重要的。 本文侧重于低温温度的WBG设备表征。 首先,介绍了对低温温度表征的测试设置。 然后,几种WBG设备候选(例如,1200V SiC MOSFET和650 V GaN Hemts)的特征是从低温温度的房间的特征。 测试结果具有总结和分析的趋势,包括导通电阻,击穿电压和开关性能。
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