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栅极电阻对改善硅/碳化硅混合开关动态过流应力的影响
Impact of Gate Resistance on Improving the Dynamic Overcurrent Stress of the Si/SiC Hybrid Switch
| 作者 | Xiaofeng Jiang · Huaping Jiang · Xiaohan Zhong · Hua Mao · Zebing Wu · Lei Tang · Haoyu Chen · Jinpeng Cheng · Li Ran |
| 期刊 | IEEE Transactions on Power Electronics |
| 出版日期 | 2022年11月 |
| 技术分类 | 功率器件技术 |
| 技术标签 | SiC器件 IGBT 功率模块 可靠性分析 |
| 相关度评分 | ★★★★ 4.0 / 5.0 |
| 关键词 | Si/SiC 混合开关 Si IGBT SiC MOSFET 动态过流应力 栅极电阻 电力电子 开关损耗 |
语言:
中文摘要
硅/碳化硅(Si/SiC)混合开关(HyS)结合了高电流Si IGBT与低电流SiC MOSFET的优势,在轻载和重载下均能实现更低的导通损耗。然而,为避免器件损坏,必须解决HyS在重载条件下所面临的动态过流应力问题。本文研究了栅极电阻对缓解该过流应力的影响。
English Abstract
A silicon/silicon carbide (Si/SiC) hybrid switch (HyS), comprised of a high-current Si insulated gate bipolar transistor and a low-current SiC metal oxide semiconductor field effect transistors, gains attention because it offers lower on-state loss under both light and heavy loads. However, the dynamic overcurrent stress experienced by the HyS under the heavy load has to be coped with to avoid rel...
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SunView 深度解读
该技术对阳光电源的组串式逆变器及PowerTitan系列储能变流器(PCS)具有重要参考价值。随着功率密度要求的提升,Si/SiC混合开关技术可在保持成本优势的同时,有效降低系统损耗。通过优化栅极驱动电路(如动态调整栅极电阻),可以显著改善功率模块在重载工况下的动态过流应力,从而提升逆变器和PCS的可靠性与热性能。建议研发团队在下一代高功率密度模块设计中,评估该混合开关方案在极端工况下的鲁棒性,以优化驱动保护逻辑。