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硬開關(guān)中的DFN及TO220的氮化鎵器件
Release date:2023-04-12
Writer:
Category:Technical Article
Views:578次
DFN封裝在開通過程中,電壓和電流的斜率明顯高于TO220封裝。因為DFN封裝有開爾文腳,有更小的共源極電感和回路電感
因此,DFN封裝的開通損耗比TO220小很多
就關(guān)斷損耗而言,TO220會發(fā)生更嚴(yán)重振蕩
在大電流關(guān)斷的時候,TO220甚至出現(xiàn)了誤導(dǎo)通的現(xiàn)象。這使得TO220的關(guān)斷損耗大大增加
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