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通过功率模块底板电容的漏电流分析与抑制

Analysis and Cancellation of Leakage Current Through Power Module Baseplate Capacitance

语言:

中文摘要

宽禁带半导体的高速开关特性会在功率模块底板产生显著的共模(CM)漏电流,导致电磁干扰问题。本文针对典型的碳化硅(SiC)半桥多芯片功率模块,从理论上分析了该共模行为,并提出了相应的抑制策略,旨在优化电力电子系统的电磁兼容性。

English Abstract

The fast edge rates achievable by wide-bandgap semiconductors can produce significant common-mode (CM) leakage currents through the baseplates of encompassing power modules, which are known to produce elevated electromagnetic signatures for power electronic applications. This article provides a theoretical treatment of this CM behavior for a typical silicon carbide half-bridge multichip power modu...
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SunView 深度解读

随着阳光电源在组串式逆变器及PowerTitan/PowerStack储能系统中大规模应用SiC功率模块以提升功率密度和效率,高频开关带来的共模漏电流问题日益突出。本文的研究对于优化逆变器及PCS的电磁兼容(EMC)设计至关重要。建议研发团队参考该理论模型,在模块封装设计阶段优化寄生电容布局,并在PCB布线及滤波器设计中引入文中提到的抑制技术,以降低电磁辐射,确保产品在严苛的电网环境及安规标准下稳定运行,提升系统整体的可靠性与电磁环境友好性。