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        ղ    Ϊҳ
        Ʒ
        > IGBTɢ >

        IGBTʿֱ-ֱ-funֱ¶밲ȫ

        Դhttp://www.becketthm.com/
        IGBT
        ģ
        IGBTIGBTֺFWDֹIGBTԴڲIGBTͷܣFWDоƬǸԷĵĺϼƼΪIGBT巢ⷢĿɷΪ̬ͽݽɱʿֱ-ֱ-funֱ
        IGBTһ뿪Ҫڣ

        1IGBTڵͨʱб͵ѹ-Vcesat
        2IGBTڿʱпܺ-EonEoff

        IGBTĵĸԴʿֱ-ֱ-funֱVcesatɵͨʿֱ-ֱ-funֱEonEoffɿʿֱ-ֱ-funֱ
        ͨ + = IGBT

        FWDҲʿֱ-ֱ-funֱΪ

        1ͨʱͨѹVf
        2ڷָĹзָܺģErec

        Vfɵͨʿֱ-ֱ-funֱErecɿʿֱ-ֱ-funֱ
        ͨ + = FWD
        VcesatEonEoffVfErecIGBT/FWDоƬļIGBT/FWDоƬͬʿֱ-ֱ-funֱʿֱ-ֱ-funֱVcesatʿֱ-ֱ-funֱEonʿֱ-ֱ-funֱʿֱ-ֱ-funֱEoffVfErecҲͬ
        IGBTĿɷΪ̬ĺͶ̬о̬İ̬ͨĺͶ̬ʿֱ-ֱ-funֱʿֱ-ֱ-funֱ̬ģģͨĺ͹ضڹضʱʿֱ-ֱ-funֱĵԼʿֱ-ֱ-funֱѹʿֱ-ֱ-funֱʿֱ-ֱ-funֱ˻СԺԲ˼㾲̬ĵʱԲǶ̬ƽ˵ľ̬һָ̬ͨʿֱ-ֱ-funֱ

        IGBTʿֱ-ֱ-funֱ-IGBTͨģ
        IGBTͨڱ״̬ʿֱ-ֱ-funֱIGBT伫ѹԼڱ͵ѹVcesatʿֱ-ֱ-funֱ
        IGBTָ̬ͨIGBTͨڵͨѹVcesat
        VcesatIcĹϵͼĽԷʾ
        Vcesat = Vt0 + Rce * Ic
        IGBTĵͨģ
        Pcond = d * Vcesat * IcdΪIGBTĵͨռձ
        IGBT͵ѹĴСʿֱ-ֱ-funֱͨĵIcоƬĽTjżѹVgeй
        ʿֱ-ֱ-funֱIGBT͵ѹֵVcesatʿֱ-ֱ-funֱ
        ӢIGBTµı͵ѹֵ
        1Tj=25ʿֱ-ֱ-funֱʿֱ-ֱ-funֱ2Tj=125ΪIc,nom(ıƵ)VGE=+15Vʿֱ-ֱ-funֱ
        IGBT-IGBTģ
        IGBT֮Դڿܺʿֱ-ֱ-funֱΪڿͨ͹ضϵ˲ʿֱ-ֱ-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)ʿֱ-ֱ-funֱfSWΪƵʿֱ-ֱ-funֱ
        IGBTܺĵĴС뿪ʱĵIcʿֱ-ֱ-funֱѹVceоƬĽ£Tjй
        IGBTܺĵֵEonʿֱ-ֱ-funֱʿֱ-ֱ-funֱEoff
        ӢIGBTµĿֵܺ
        1Tj=252Tj=125ΪIC,NOM(ıƵ)ʿֱ-ֱ-funֱ
        IGBT-FWDģ
        ָFWDĹͨתΪϵ˲ΪͨٻָΪ״̬
        VrӽErecɽƵؿIfVrȣ
        Erec = EREC * If /IF,NOM * Vr/
        FWDĿģ
        Prec = fSW * ErecfSWΪƵ
        FWDָܺĵĴСͨʱĵIf仯dif/dtѹVrоƬĽ£Tjй
        ʿֱ-ֱ-funֱIGBTָܺĵֵERECʿֱ-ֱ-funֱ
        ӢIGBTʿֱ-ֱ-funֱµķֵָܺ
        1Tj=252Tj=125ΪIF,NOMʿֱ-ֱ-funֱıƵʿֱ-ֱ-funֱ
        IGBT-С᣺
        IGBT:
        ͨģ

        1IGBTоƬй
        2йأIGBTռձȳTj߶
        3йأVgeӶС

        ģ

        1IGBTоƬй
        2빤йأ뿪Ƶʿֱ-ֱ-funֱʿֱ-ֱ-funֱѹTj߶
        3йأRgʿֱ-ֱ-funֱżضϵѹӶС

        FWD:
        ͨģ

        1FWDоƬй
        2빤йأFWDռձȳʿֱ-ֱ-funֱ

        ģ

        1FWDоƬй
        2빤йأ뿪ƵѹTj߶

        ϵͳܵģ
        IGBTܵPTrΪ̬ͨ뿪֮ܵPDΪ̬ͨĺͿ֮ʿֱ-ֱ-funֱԱƵΪʿֱ-ֱ-funֱϵͳܵPtotΪ6IGBT6֮ʿֱ-ֱ-funֱ
        ֤: ҸͼƬ
           Ϻ˵ӿƼ޹˾
           ϵˣС
           ߣ021-58979561
           ҵѯqq447495955
           ҵѯqq1852433657
           ҵѯqq513845646
           ֧qq313548578
           Ⱥ376450741
           ҵѯ:  ҷϢ
           ҵѯ:  ҷϢ
           ҵѯ:  ҷϢ
           ֧:  ҷϢ
           ý:  ҷϢ

        ʿֱ-ֱ-funֱ
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