?a?????t 3DD128D ?????1?????????e???1 ?t?y?a???1ye?t1??? ?? ?-????t?yeo?aa 14 o? ?? 0510 5807228-2268 2299 ??? 0510 5800360 ? 1 3 12 2 3 1 ?????? 3dd1 28d 1 npn e1|a ?a1???? 1 ?a? ? ??? ? ?? ??2 ?2?? ??? ?a?? ?? ??t?? 1? ??3 ? e c ???? ?? ? ???a ??? a ? ??? 2?? ?? ?? e? ??????a ?????1?? ?a??e? ?a1???? o?1??? ??e?o? ???ae??o? ae?? t o -220ab 2 ??e? 2.1 ???t? 3y?e1?? t am b = 25 2? y ?? 3? ?o? ???? ??? ???? - l?????1 v ce0 4 0 0 v ???? - ? ????1 v cb0 7 0 0 v l??? - ? ????1 v eb0 9 v ????? i c 4 a ta = 2 5 2 o?1|a tc = 2 5 p tot 75 w ??a t j 1 5 0 ???a? t stg -55 150 2.5 4 2.5 4 1.4 m ax b c e 10. 7max 16. 5max 12. 5 min 0.5 6min 4.8 max 3. 8 4 6.9 m ax ?a?e?? b e c 2.2 ?2?y 3y?e1?? t am b = 25 1? ? ? 2? y ?? 3? ? o? 2a ? ? ?t ?e? ?e ?? ??? ???? - ??????1? i cb0 v cb =700v , i e = 0 0 . 1 m a l??? - ??????1? i eb0 v eb =9v , i c = 0 0 . 1 m a 12l????y????? ??2?? h fe a v ce =5v , i c = 1 a 1 0 5 0 e?? ?a h fe1 ?? ? ?a h fe2 ? h fe1/ h fe2 h fe1 . v ce =5v , i c =5m a h fe2 : v ce =5v , i c =1a 0 . 7 5 0 . 9 ???? - l???o??1 v ce sat a i c =2a, i b =0. 5a 0.6 v ? ?? - l???o??1 v be sat a i c =2a, i b = 0 . 5 a 1 . 5 v ?a???? t f 0 . 8 s ???? t s v cc =120v , i c =2a 2i b1 =-i b2 =0.4a 3 . 6 s ???a f t v ce =10v , i c =500m a f=1mhz 5 m h z a : a?3?2a? tp 300 s, 2%
?a?????t 3DD128D 3 ?e???? 0.1 0.0 1 1 i c (a) 1 10 10 0 v ce (v) 10 0 20 0 0 50 p tot (w) 40 60 80 t ( ) p tot - t 1????? 2?1?? ( ? ) t case =25 p tot -t case p tot -t am b 0.01 0.1 1 h fe 10 0.4 0.1 1 0.8 10 0 v be sat (v ) 1.2 i c (a ) i c (a ) v besat - i c 1????? h fe - i c 1????? t am b =25 i c /i b =4 t am b =25 v ce =5v v ce sa t (v ) 0.1 0.01 1 i c (a) 1 0.1 v cesat - i c 1????? t am b =25 i c /i b =4 ? 2 3 12 2 3
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