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    • 5. 发明授权
    • Power converting apparatus having improved electro-thermal characteristics
    • 具有改善的电热特性的电力转换装置
    • US08675379B2
    • 2014-03-18
    • US13204834
    • 2011-08-08
    • Joseph Lucian SmolenskiMichael SchuttenEladio Clemente DelgadoRichard Alfred Beaupre
    • Joseph Lucian SmolenskiMichael SchuttenEladio Clemente DelgadoRichard Alfred Beaupre
    • H05K7/20H02M7/5387
    • H01L25/16H01L2924/0002H02M7/003H05K7/1432H01L2924/00
    • A power-converting apparatus, such as a power module, may include a base plate (16), a first direct current (DC) bus and a second DC bus (22, 24). A power semiconductor component (18, 20) may be electrically coupled to one of the buses, and may be disposed on a substrate (12, 14) physically coupled to the base plate. The power semiconductor component may be made from a high-temperature, wide bandgap material, and the substrate may be exposed to a heat flux based on an operational temperature of the power semiconductor component. At least a first capacitor (50) may be coupled across the first and second DC buses, and at least second and third capacitors (52) may be respectively coupled across respective ones of the first and second buses and an alternating current (AC) return path. Capacitors (50, 52) may each be located inside the power module to establish circuit connections sufficiently proximate to the first power semiconductor component to reduce a formation of parasitic inductances, and further may each be located physically apart from the substrate and thus not exposed to the heat flux.
    • 诸如功率模块的电力转换装置可以包括基板(16),第一直流(DC)总线和第二DC总线(22,24)。 功率半导体部件(18,20)可以电耦合到总线中的一个,并且可以设置在物理耦合到基板的基板(12,14)上。 功率半导体部件可以由高温,宽带隙材料制成,并且基板可以基于功率半导体部件的工作温度暴露于热通量。 至少第一电容器(50)可以跨越第一和第二DC总线耦合,并且至少第二和第三电容器(52)可以分别耦合在第一和第二总线中的相应的第一和第二总线上,并且交流(AC)返回 路径。 电容器(50,52)可以各自位于功率模块内部,以建立足够靠近第一功率半导体部件的电路连接,以减少寄生电感的形成,并且还可以分别位于与衬底物理分开的位置,从而不暴露于 热通量。