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    ղ    Ϊҳ
    Ʒ
    > IGBTɢ >

    IGBTĵЧ·ģ

    뵼ԿʹòͬĵЧ·ģ
    ·ģ
     ͼ 1: ·ģ (Continued fraction circuit,ҲCauerģ, Tģͻ)
    ·ģ(Continued fraction circuit)Ӧ˴ڲİ뵼ʵ֪ÿIJʱܹģȻҪ ÿϵ·ͼʮ鷳ÿһ㣨оƬоƬӲƬƬӲװ壩ӦRCԪʾ˴·ģ͵ĸڵܹÿϵڲ¶Դhttp://www.changinglifeinc.com/sr/297.html
     ֲ·ģ
    ͼ 2: ֲ·ģ (Partial fraction circuit,ҲFosterģͻpiģ)
    ·ģͲֲͬ·ģ(Partial fraction circuit)RCֲϲӦڵûκӦֲøģΪϵ״Ѳõɢеõ˸ģڽ¶ȷֲ
    ڱӦֲֲ·ģеϵеrһʾ
    һӣ
    ֲ·ģеϵ
    迹߷̼Tj㹫ʽ
    ˲̬迹
    ֲ·ģк빦P(t), Tcase IGBT ķģ
    ͼ 3: ֲ·ģк빦P(t), Tcase IGBT ķģ
    ʵӦɢƬ¶Ȳܼ򻯼Ϊ㶨ֵΪɢƬʱ䳣ڵʱ䲻Ƕ̵ԺԵڷǹ̶ĹҪTcase(t )в߽IGBTģɢƬģ
    ǵȽ
    ·ģµ¶ʱõȽRt h δ֪ĵȽZt hȻھֲ·ģһԾĹ뵽IGBTʱͨȽ¶漴˽ʵвڵĽַԱ
    1) ɢƬZth ͨõӦû¶TcaseɢƬ¶ThsȽѾɢƬ¶ȲͲٵֿ
    2) IGBTѾ֪빦P(t)¶Tcase(t)ֱӲõӶͼ3õ
    IGBTɢƬþֲ·ģͻ·ģ
    ûĻĿǰеIGBTɢƬȲ·ģͼ·ģͺ;ֲ·ģͶṩIGBTĽᵽɢƬΧȴݹҪIGBTɢƬģͺϲһͻҪĸģ͵رIGBTɢƬǷֱ
    ·ģеIGBT ɢƬ
    ۺϵ·ģ
    ͼ 4: ۺϵ·ģ
    ·ģͺģӵĸϲģʹȴݹϲ㴫—ڵ·еĵ—һʱӳٺ󵽴ﲢɢƬ·ģͿͨһľֲ·ģͱ任õ
    ͨṹÿһϷԪģԿԽһģֻڰijһضɢƬʱǿܵΪɢƬIGBTĴ໥õӰҲӦʱIGBTRthjcӰʵеɢƬõɢƬһôͲͨʵʵɢƬнģ
    ֲһֲ·ģ͵IJΪǻڲõĽԼṩZthjcΪƵֲ·ģͱ任Ϊ·ģпܵ任һRth/CֵںܶԲͬRthCȡֵұ任µ·ģеRCֵͽڵ㶼ûȷһ任õIJ·ģͶӦ·ģͻִ
    ֤: ҸͼƬ
       Ϻ˵ӿƼ޹˾
       ϵˣС
       ߣ021-58979561
       ҵѯqq447495955
       ҵѯqq1852433657
       ҵѯqq513845646
       ֧qq313548578
       Ⱥ376450741
       ҵѯ:  ҷϢ
       ҵѯ:  ҷϢ
       ҵѯ:  ҷϢ
       ֧:  ҷϢ
       ý:  ҷϢ

    ֳַ - ҳ

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