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文件名称: 门极参数Rge Cge和Lg对IGBT开关波形的影响.pdf
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  上传时间: 2019-09-14
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 详细说明:门极参数Rge Cge和Lg对IGBT开关波形的影响pdf,门极参数Rge Cge和Lg对IGBT开关波形的影响英文版。Gate voltage level Infineon 100 ■ Positive voltage 90 v=15V 80+|VGE=12V VGE= sy 60 -VGE 3V Effect to vcesat 50 40 Vge个,Vo cesar 30 20 0 D.口 0,51, 52,02.53, 4 4,55.0 note: max. allowed vge is VcE MVI 20V sCtime and current 1200 VIGBT VcC=720 V 19V V==17y Effect to short cicuit 1二 15V Vge个,Isc个(tsc√) 13V V==11V 8101214161820 max. SC-time [us Copyright o Infineon Technologies 2010. All rights reserved Gate voltage level Infineon ■ Negative voltage To guarantee safety off C state, avoid parasitic dicE G CG dt miller turn on +15VO Treiber CG RDriver irgon'ot rgint n turn on delay increase CGE VcE t (dead time) dt 0V ge=(RDriver RGonoft+Rgint )ice E Slightly reduce tf and Eoff Miller capability effect increase driving power Copyright o Infineon Technologies 2010. All rights reserved Infineon Driver driving capability ■ Driving capability Peak current capability o Maximum driver peak current K is around 0.7 u= 30V 15V sWitching n Power capability ● Driver power Copyright o Infineon Technologies 2010. All rights reserved Infineon Effect of turn on/off ■Rgon GE 正 GE C 4 ++1 十十+++++2+++ +日1444+1444++ +-+444++1+4+4 CE CE CE Copyright o Infineon Technologies 2010. All rights reserved Infineon Effect of turn on/off ■ Goff 600 1200 10 100 1000 800 E Ra3,9 60 0 600 33 R=47Q R=4.7 1。=4/g R=6.8 R=63g+400 R2=68 200 -0 15 d,思 0.75 1,75 275 3.25 0,75 12 175t[us25 2,75 3.25 Copyright o Infineon Technologies 2010. All rights reserved Infineon Effect of turn on/off ■Cge Independently control of dv/at and dildt GC R G GE Range Determined by Condition Influenced by Influence on VGE< VGEth const R GI CGE don GEth
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