逆变模块双脉冲测试.pdf

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1、Double-pulsetestprincipleIGBTMeasurementsTurn-on&Turn-offTestSetup2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page2IGBTMeasurementsTurn-on&Turn-offBasicWaveforms2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page3IGBTMeasureme

2、ntsTurn-on&Turn-offSampleWaveforms2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page4IGBTMeasurementsShortCircuitI&IITestSetup2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page5TwoTypesofShort-circuitsBeforeshort-circuitoccurs

3、,IGBTisOFF&Beforetheshort-circuitoccurs,IGBTisON&blockstheDC-busvoltage.insaturationregion.Theshort-circuitiscreatedbytheswitch-onTheshort-circuitiscreatedbyapplyingtheoftheIGBT.DC-busvoltageonC-EoftheIGBT.VneverreachesVVCEde-saturatesfromVCECEsatCEsatvalue!value!2013/5/22ForinternaluseonlyCop

4、yright©InfineonTechnologies2008.Allrightsreserved.Page6DiodeMeasurementsTestSetup2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page7DiodeMeasurementsRecoveryBasicWaveforms2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page8Diode

5、MeasurementsRecoverySampleWaveformd/dtErecQriF50%IF-50%IRM10%VR-2%IRMIF=0-2%IRMErec:10%VR2013/5/22ForinternaluseonlyCopyright©InfineonTechnologies2008.Allrightsreserved.Page9