二极体测试简介-CARL

newproducts2/3/2020.1二極體測試簡介J.F.YANGDATE:MAY/24Next2/3/20202討論主題物理特性簡介應用簡介介紹各項參數測試方法PrevNext2/3/20203PNJUNCTIONWITHNOEXTERNALBIAS物理特性-無偏壓Back2/3/20204PNJUNCTIONWITHREVERSEEXTERNALBIAS物理特性-逆向偏壓BackPrev2/3/20205PNJUNCTIONWITHFORWARDEXTERNALBIAS物理特性-順向偏壓BackPrev2/3/20206應用簡介100VSchottkyApplications高頻開關式電源供應器Freewheelingdiodes極性保護裝置電池充電器監視器AC/DC轉換器DC/DC轉換器Back2/3/20207電壓穩定器電壓基準器應用簡介ZenerDiodeBackPrev2/3/20208應用簡介TVSDC電源供應保護器AC電源供應保護器電子線路過電壓保護EMI限制繼電器及接觸器反電動勢保護基本應用線路GoBackPrev2/3/20209參數項目(1)RC–TESTCLIPCONTACTCHECKSOP–D.U.T.OPEN/SHORTPOLARITYIR–REVERSELEAKAGECURRENTVF–FORWARDVOLTAGEVR–REVERSEVOLTAGEDVF–熱效應順向電壓差測試Back2/3/202010參數項目(2)VC–CLAMPINGVOLTAGE，TVSPRODUCTTRR–RVERSERECOVERYTIMEVFD–SKYSURGE–SURGECURRENTZZT/ZZK–DYNAMICIMPEDANCEPrev2/3/202011RC測試方法:KelvinContactI=500maR=V/IPW=4+0.3+4msCRACRKBack2/3/202012SOP測試方法:類似VF測試方法V0.20V=ShortV3.00V=OpenPW=6.3+0.3+6.3msIF=100maVBack2/3/202013IR逆向漏電流測試SOP判定後,從陽極加上負電壓少數電子從陰極流向陽極PW=4+IRPW+4ms+HVIR-HVBack2/3/202014IRCURVE-V-I定電壓測試逆向漏電流Prev2/3/202015VF順向電壓測試PW=4+VFPW+4msIFVFBack2/3/202016VFCURVE+I+VPrev2/3/202017VR逆向崩潰電壓測試從陽極加上負定電流,電流值達到設定值時記錄二極體兩端電壓PW=4+VRPW+4ms+HVIZ-HVVRBack2/3/202018VRCURVE-V-I定電流測試逆向崩潰電壓Prev2/3/202019DVF熱效應順向電壓差測試IF大電流,加熱用,10AIM小電流測量VF,10mAPW=4+VFPW+4msIFVFIMBack2/3/202020DVFTIMINGIMIF(Heating)IMPW:IM=2msIF=75msDVF=/VF1-VF2/400usReadVF21.0msReadVF1Prev2/3/202021VCCLAMPINGVOLTAGE從陽極加上負定電流,電流值達到設定值時記錄二極體兩端電壓PW=4+VCPW+4ms+HVIZ-HVVRBack2/3/202022VCCURVE(1)SQUAREWAVEPW:IP=0.3msVC=VPeakVCURVEIPCURVEPrevNext400W,600W,1500W,500W0.55j,0.80j,2.10j,7.00jEnergy=KVcIt@1.0mSSQUAREWAVE:K=12/3/202023VCCURVE(2)EXP.WAVE(10x1000)PW:DEPENDINGONWAVEVC=VPeakIPCURVE10us½IP1000usPrevEnergy=KVcItExp.Wave:K=1.42/3/202024TRRRG1CURCUITREVERSERECOVERYTIMEIF=500maIR=1.00AIrr=0.25IRBack2/3/202025TRRWAVEFORMREVERSERECOVERYTIMEIRTRRIrr=0.25IR0VPrev2/3/202026VFDWAVEFORMVIVFD效應曲線正常VF曲線Back2/3/202027VFDTESTTIMING100us400usVFD14ms4ms600usVFD2VFD=/VFD1-VFD2/Prev2/3/202028SKYSURGE從陽極加上負定電流,電流值達到設定值時記錄二極體兩端電壓+HVIZ-HVVRBack2/3/202029SkySurgeTESTTIMING1000us2us10TIMESPrev2/3/202030ZZT/ZZK+HVIZ+Iac-HVVZBack1.崩潰動態阻抗(ZZT)測試:在測試的IZ電流上再疊加一AC電流(1KHz,IAC(RMS)=10%xIZ)計算出動態阻抗ZZT.1.2.崩潰轉折點動態阻抗(ZZK)測試:在所設定IZK電流條件下,疊加一AC電流(1KHz,IAC(RMS)=10%xIZK)計算出動態阻抗ZZK.2/3/202031ZZk,ZZtCURVEPrev-V-IIz+iacIz+iacZZKZZt0.250mA+0.025mADCAC1KHz2/3/202032Iac1kHzIdcIZ+IacD.U.T.VZ+VacLowPassFilterIacRectifyHighPassFilterVac(RMS)VacIac=ZZkTESTFLOWPrev2/3/202033DATASHEET2/3/202034WEI-MINTESTERBF610CBS610VF600CFR600TVS600CVC600CZT600HPC6102/3/202035TTKTESTERTK-168DSS-168TRR-168ZZ-170VC-15KDVF-1682/3/202036GlassGPPStructureP+N+NNi/AuplatingOxidation