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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.minaco-uk.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

          ӹ-Ϸ
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