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共源极电感引起的有源双向器件电压过冲与振荡

Common-Source Inductance Induced Voltage Overshoot and Oscillation in Active Bidirectional Devices

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中文摘要

本文研究了共源极电感(CSI)对高速开关器件的影响。CSI不仅会降低开关速度并增加损耗,还可能在关断过程中引发自导通现象。文章重点探讨了CSI在双向功率变换电路中的影响,为提升高频电力电子变换器的可靠性提供了理论支撑。

English Abstract

Common-source inductance (CSI) is proven to be detrimental for high-speed switching. It can significantly slow down switching speed and increase switching losses. Recent research also demonstrated a self-turn-on phenomenon during the device turn-off transient in a simple buck converter. Yet there is lack of literature investigating the impact of CSI in circuits using bidirectional devices. This le...
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SunView 深度解读

该研究直接关联阳光电源的核心功率变换技术。随着PowerTitan系列储能系统及组串式逆变器向高功率密度、高开关频率演进,SiC等宽禁带半导体应用日益广泛,共源极电感(CSI)导致的电压过冲和振荡是制约系统效率与可靠性的关键瓶颈。建议研发团队在功率模块封装设计及PCB布局中,重点优化源极回路寄生电感,以抑制开关振荡,提升系统电磁兼容性(EMC)及长期运行可靠性,从而进一步优化PowerStack等产品的散热与效率表现。