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      ղ    Ϊҳ
      Ʒ
      > IGBTɢ >

      IGBTӢֱ-ֱ-funֱ¶밲ȫ

      Դhttp://www.menopause-defeated.com/
      IGBT
      ģ
      IGBTIGBTֺFWDֹIGBTԴڲIGBTͷܣFWDоƬǸԷĵĺϼƼΪIGBT巢ⷢĿɷΪ̬ͽݽɱӢֱ-ֱ-funֱ
      IGBTһ뿪Ҫڣ

      1IGBTڵͨʱб͵ѹ-Vcesat
      2IGBTڿʱпܺ-EonEoff

      IGBTĵĸԴӢֱ-ֱ-funֱVcesatɵͨӢֱ-ֱ-funֱEonEoffɿӢֱ-ֱ-funֱ
      ͨ + = IGBT

      FWDҲӢֱ-ֱ-funֱΪ

      1ͨʱͨѹVf
      2ڷָĹзָܺģErec

      VfɵͨӢֱ-ֱ-funֱErecɿӢֱ-ֱ-funֱ
      ͨ + = FWD
      VcesatEonEoffVfErecIGBT/FWDоƬļIGBT/FWDоƬͬӢֱ-ֱ-funֱӢֱ-ֱ-funֱVcesatӢֱ-ֱ-funֱEonӢֱ-ֱ-funֱӢֱ-ֱ-funֱEoffVfErecҲͬ
      IGBTĿɷΪ̬ĺͶ̬о̬İ̬ͨĺͶ̬Ӣֱ-ֱ-funֱӢֱ-ֱ-funֱ̬ģģͨĺ͹ضڹضʱӢֱ-ֱ-funֱĵԼӢֱ-ֱ-funֱѹӢֱ-ֱ-funֱӢֱ-ֱ-funֱ˻СԺԲ˼㾲̬ĵʱԲǶ̬ƽ˵ľ̬һָ̬ͨӢֱ-ֱ-funֱ

      IGBTӢֱ-ֱ-funֱ-IGBTͨģ
      IGBTͨڱ״̬Ӣֱ-ֱ-funֱIGBT伫ѹԼڱ͵ѹVcesatӢֱ-ֱ-funֱ
      IGBTָ̬ͨIGBTͨڵͨѹVcesat
      VcesatIcĹϵͼĽԷʾ
      Vcesat = Vt0 + Rce * Ic
      IGBTĵͨģ
      Pcond = d * Vcesat * IcdΪIGBTĵͨռձ
      IGBT͵ѹĴСӢֱ-ֱ-funֱͨĵIcоƬĽTjżѹVgeй
      Ӣֱ-ֱ-funֱIGBT͵ѹֵVcesatӢֱ-ֱ-funֱ
      ӢIGBTµı͵ѹֵ
      1Tj=25Ӣֱ-ֱ-funֱӢֱ-ֱ-funֱ2Tj=125ΪIc,nom(ıƵ)VGE=+15VӢֱ-ֱ-funֱ
      IGBT-IGBTģ
      IGBT֮ԴڿܺӢֱ-ֱ-funֱΪڿͨ͹ضϵ˲Ӣֱ-ֱ-funֱ͵ѹص
      ſƵʵеıҲñȽϴİͨĺ͹ضڸͨضʱģͨӵؽ͵ѹٶʱַõͬʱ迼ʵʵο֮IJ
      VceӽEonEoffɽƵؿIcVceȣ
      Eon = EON * IC/IC,NOM * Vce /
      Eoff = EOFF * IC/IC,NOM * Vce /
      IGBTĿģ
      PSW = Fsw * (Eon + Eoff)Ӣֱ-ֱ-funֱfSWΪƵӢֱ-ֱ-funֱ
      IGBTܺĵĴС뿪ʱĵIcӢֱ-ֱ-funֱѹVceоƬĽ£Tjй
      IGBTܺĵֵEonӢֱ-ֱ-funֱӢֱ-ֱ-funֱEoff
      ӢIGBTµĿֵܺ
      1Tj=252Tj=125ΪIC,NOM(ıƵ)Ӣֱ-ֱ-funֱ
      IGBT-FWDģ
      ָFWDĹͨתΪϵ˲ΪͨٻָΪ״̬
      VrӽErecɽƵؿIfVrȣ
      Erec = EREC * If /IF,NOM * Vr/
      FWDĿģ
      Prec = fSW * ErecfSWΪƵ
      FWDָܺĵĴСͨʱĵIf仯dif/dtѹVrоƬĽ£Tjй
      Ӣֱ-ֱ-funֱIGBTָܺĵֵERECӢֱ-ֱ-funֱ
      ӢIGBTӢֱ-ֱ-funֱµķֵָܺ
      1Tj=252Tj=125ΪIF,NOMӢֱ-ֱ-funֱıƵӢֱ-ֱ-funֱ
      IGBT-С᣺
      IGBT:
      ͨģ

      1IGBTоƬй
      2йأIGBTռձȳTj߶
      3йأVgeӶС

      ģ

      1IGBTоƬй
      2빤йأ뿪ƵӢֱ-ֱ-funֱӢֱ-ֱ-funֱѹTj߶
      3йأRgӢֱ-ֱ-funֱżضϵѹӶС

      FWD:
      ͨģ

      1FWDоƬй
      2빤йأFWDռձȳӢֱ-ֱ-funֱ

      ģ

      1FWDоƬй
      2빤йأ뿪ƵѹTj߶

      ϵͳܵģ
      IGBTܵPTrΪ̬ͨ뿪֮ܵPDΪ̬ͨĺͿ֮Ӣֱ-ֱ-funֱԱƵΪӢֱ-ֱ-funֱϵͳܵPtotΪ6IGBT6֮Ӣֱ-ֱ-funֱ
      ֤: ҸͼƬ
         Ϻ˵ӿƼ޹˾
         ϵˣС
         ߣ021-58979561
         ҵѯqq447495955
         ҵѯqq1852433657
         ҵѯqq513845646
         ֧qq313548578
         Ⱥ376450741
         ҵѯ:  ҷϢ
         ҵѯ:  ҷϢ
         ҵѯ:  ҷϢ
         ֧:  ҷϢ
         ý:  ҷϢ

      Ӣֱ-ֱ-funֱ

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