Investigation on the Degradation Mechanism of Si/SiC Cascode Device Under Repetitive Short-Circuit Tests
Qiusheng Zhang,
Hangzhi Liu,
Yuming Zhou
Abstract:The Si/SiC Cascode device has been widely accepted in various applications, however, its reliability issue still remains a major concern and needs to be extensively investigated. In this paper, the degradation of a 750 V Si/SiC Cascode device under repetitive short-circuit (SC) tests is investigated at 400 V DC-link voltage. Static and dynamic characteristics are measured before and after the repetitive SC cycles. As the SC cycle increases, the degradation of the device becomes gradually significant. By linkin… Show more
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