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c? ?d : 2002 ? 11 d sjc00223bjd 2sd1458 3?? npn e??3???? ? * t ? ?; ?y ? ? v ?v ? ?p h fe u?m ? ??~???^ ?y v ce(sat) u ?m ? m ?-?p ? ?| ?u0?| p xtq{ p v? ? 07 g t a = 25 c g? o? ??~?? ?y (e ?l )v cbo 20 v ?? ~ ??? ?y (b ?l ) v ceo 20 v ???~?? ?y (c ?l )v ebo 15 v ?? ?v i c 0.7 a ? ??? ?v i cp 1.5 a ?? ? * p c 1w ?9 s t j 150 c - 9 s t stg ? 55 + 150 c g? e 7 ? a j 7 g o? ??~?? ?y (e ?l )v cbo i c = 10 a, i e = 020v ?? ~ ??? ?y (b ?l ) v ceo i c = 1 ma, i b = 020v ???~?? ?y (c ?l )v ebo i e = 10 a, i c = 015v ??~?? ? ?v (e ?l ) i cbo v cb = 15 v, i e = 01 a ??~ ??? ? ?v (b ?l ) i ceo v ce = 15 v, i b = 010 a v ?v ? ?p * h fe v ce = 10 v, i c = 150 ma 1 000 2 500 ? ??~???^ ?y v ce(sat) i c = 500 ma, i b = 50 ma 0.4 v ???3?? * t : f t v cb = 20 v, i e = ? 20 ma, f = 200 mhz 55 mhz ?? z?0? ( ???l )c ob v cb = 10 v, i e = 0, f = 1 mhz 11 15 pf ?> $ ? q t a = 25 c 3 c 6.9 0.1 2.5 0.1 (1.0) (1.0) (1.5) (0.85) 0.45 0.05 0.55 0.1 (2.5) (2.5) 21 3 r 0.7 r 0.9 (0.4) 3.5 0.1 4.5 0.1 4.1 0.2 2.4 0.2 1.25 0.05 2.0 0.2 1.0 0.1 (1.5) unit : mm 1 : base 2 : collector 3 : emitter m-a1 package ? )1. mox| ???f jis c 7030 ???? mot???b{ 2. * : ? ? ? ) * : ???, xw?? ? w ? '? u 1 cm 2 ? | ? 1.7 mm 2sd1458 2 sjc00223bjd v ce(sat) ? i c h fe ? i c f t ? i e p c ? t a i c ? v ce i c ? v be c ob ? v cb 0 160 40 120 80 140 20 100 60 0 1.2 1.0 0.8 0.6 0.4 0.2 copper plate at the collector is more than 1 cm 2 in area, 1.7 mm in thickness ?? ? p c ( w ) *?9 s t a ( c ) 010 8 26 4 0 240 200 160 120 80 40 t a = 25 c i b = 100 a 10 a 20 a 30 a 40 a 50 a 60 a 70 a 80 a 90 a ?? ?v i c ( ma ) ??~??? ?y v ce ( v ) 02.0 1.6 0.4 1.2 0.8 0 2.4 2.0 1.6 1.2 0.8 0.4 v ce = 10 v t a = 75 c ? 25 c 25 c ??~??? ?y v be ( v ) ?? ?v i c ( a ) 0.01 0.1 1 10 0.01 0.1 1 10 100 i c / i b = 10 25 c ? 25 c t a = 75 c ??~???^ ?y v ce(sat) ( v ) ?? ?v i c ( a ) 0.01 0.1 1 10 0 3 000 2 500 2 000 1 500 1 000 500 v ce = 10 v t a = 75 c 25 c ? 25 c v ?v ? ?p h fe ?? ?v i c ( a ) ? 1 ? 10 ? 100 ? 1 000 0 300 250 200 150 100 50 v cb = 10 v t a = 25 c ???3?? * t : f t ( mhz ) ??? ?v i e ( ma ) 1 10 100 0 24 20 16 12 8 4 i e = 0 f = 1 mhz t a = 25 c ??~?? ?y v cb ( v ) ?? z?0? ( ???l ) c ob (pf) 2002 jul ???tglwu [ ?cs?| r ? .w]?;tkhlows&mq ??? (1) ???tglw a ?s?|u [pz ??? 8t|?u?o t? pb??w? zb?z ? hxz ?t?j zbxz ?? s ?w?du ?apb{ (2) ???tglwu [ ?cx a ?w e ? qs?| ;s??sr??`h?wpk?z t?` xx h~ w ? $r?vfw wvbt 0b?- a?hx?avw? z??b??wpxk? ?d?{ (3) gti?b? h~ twvbttt??e ju c \`h ?z ptxfw y? ?o?wpx k??d?{ (4) ???tgl^?om? a ?xz a j; m ? ` ??;+ ( ??;+z ?;+z - ;+z h ? a ?sr ) t?;^??\q?? $`os??b{ ? s ?z ?t qua{^?z fw? ??? ?^u ? ??t`h?z .t)??t?b a?wk?; m ? ? ; m ( ? ~ | ; z | ;+z ?;+z \??? ?z ? ? ?sr ) t ]?;?s?qwsl7s?| ptu? $`h a j; m??t]?;?s?qwsl7xz ? 2t t? ?p] ?&m?b{ (5) ???tgl`os??b a ?s?| a ??7xz ~?srwh?t'sx!?b? ?uk ??bwp]? ?xi^m{ `huloz 7 4 $s ?-z ] ?z ]?;tm`?`oxz ? 2t7 y w a ?f {?hx?7 {?s{?&mz ]? yxi^m{ (6) ?-tm`oz ?t7 g z ?^ ?o ?y c?z l ? ? qtmmox- a c? op]?;mhi v?b?os&m ?`?b{ - a ?? qo]?;^?h ?z fw?t c \`h;+w=tm moxtq`o y ? ?m?d?{ ?hz - a ? ow]?;pklo?z r ? . a ?tmmo ' ^??? ? c \pz ? ?t?? ?]??w z t a ?w ?^uj?p]?;;+u ??z pb??z tq $s ?sr? \a ^dsm ? ? ?-z ? 0f ?-z ? ?^w- ?-srw3a w 0f?ao ?v?b?o s&m ?`?b{ (7) wa ? ?aqb? a ?tmv?`oxz x?w?7 { ?|?`w ?z ?>?h e ( - 8z ? ??wl ?sr ) ? lo]?;xi^m{ (8) ???w ??hx ? ??tw {t?? ? zs`tz 8l?hx ab?\q?nxs ?? mh`?b{ |
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