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N

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(b) PNP 4-2 – PowerPoint PPT presentation

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Title: N


1
????????
? ? 4-2 ???????????
2
????????
? ?4-1 ????????
3
???
N ??
P ??
N ??
?????
???? (??)?
??? ??
????(??)?
?????
????(??)?
? ?4-3 ????????????
4
???
  • ????????????,????????,?C-E??????????(ON)?

????? ??
N
P
N
? ?4-4 ????????????
5
???
  • ??????????,????????,??????????,? C-E
    ??????????(OFF)?

??????? ??????
N
P
N
? ?4-5 ????????????
6
????
  • ???????????????????(E)???(C)????,?????????????????
    ??????

???????,????????
?????????
N
P
N
?????????????
? ?4-6 ?????????????
7
????????
(a) NPN????
(b) PNP????
? ?4-7 ????????????
8
????a?b ??
(???1)
??
??
(???1)
9
??????
(a) ???
(b) ??????
? ?4-9 NPN???????????
10
??????
  • ????????????,??????????????????????????,?????????
    ???

(a) ???
(b) ??????
? ?4-10 NPN???????????
11
???(CB )??
  • ? NPN ???????,VEB lt 0?VCB gt 0,???VC gt VB gt VE?

(b) PNP????
(a) NPN????
? ?4-11 ???????????
12
CB???????
(a) ????????
(b) ????????
? ?4-12 NPN???????????????
13
??????????
? ?4-14 ??????????
14
???(CE)??
  • ? NPN ???????, ?
    ???????????????,??
    (B-C??)???NPN??????,??? ?

(a) NPN????
(b) PNP????
? ?4-15 ???????????
15
CE???????
(a) ????????
(b) ????????
? ?4-16 NPN??????????????
16
??????????
? ?4-18 ??????????
17
???(CC)??
  • ? NPN ???????, ? ???????????????,?
    ? (B-E??)???NPN??????,??? ?

(a) NPN????
(b) PNP????
? ?4-19 ???????????
18
??????????
? ?4-20 ??????????
19
??????????
? ?4-2 ?????????????????
20
????????
  • ??????????????,??????????,????????????

(a) ?????(??)
(b) ?????(??)
? ?4-21 NPN??????????
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