双极功率器件中等离子体萃取跃迁时间振荡分析

2004 Proceedings of the 16th International Symposium on Power Semiconductor Devices and ICs Pub Date : 2004-05-24 DOI:10.1109/WCT.2004.239972

R. Siemieniec, P. Mourick, L. Josef, M. Netzel

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引用次数: 12

摘要

高频PETT振荡的发生与双极功率器件关断过程结束时载流子输运通过已形成的空间电荷区的输运时间有关。这些振荡只有在匹配的外部LC电路作为谐振电路的情况下才会出现。结果表明，这种振荡的发生取决于一个广泛的参数范围。采用三维电磁兼容仿真的方法估计了整个电源模块的谐振点。

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Analysis of plasma extraction transit time oscillations in bipolar power devices

The occurrence of high-frequency PETT (plasma extraction transit time) oscillations is related to the transit-time of the carrier transport through the already formed space-charge region at the end of the turn-off process of bipolar power devices. These oscillations are found only in the case of a matching external LC circuit which acts as a resonance circuit. It is shown that the occurrence of this type of oscillation depends on a wide range of parameters. 3D EMC simulation is used for the estimation of resonance points of a complete power module.

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2004 Proceedings of the 16th International Symposium on Power Semiconductor Devices and ICs

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