???T--????, iC=? iB?????????,?????,?????????? ?

1
?15? ??????
15.1 ???????????
15.2 ?????????
15.3 ?????????
15.4 ????????
15.5 ??????????
15.6 ?????
15.7 ??????????????(?)
15.8 ??????
15.9 ??????????(?)
15.10 ??????????(?)
2
????
?15? ??????

• 1. ?????????????????????
• ?????????????
• ?????????????????????
• ??????
• 3. ?????????????????????,
• ?????????????????????
• ????
• 4. ??????????????????
• 5. ??????????????????????

3

• ?????

???????????????????????
????? ???????????????????,???????????????
????????
?????????? 1. ?????????(????????)?
2. ?????????? ?????????????????????????
????????????,???????????
4
15.1 ?????????
15.1.1 ????????????
????????
5
15.1.2 ???????????
???T--????, iC? iB?????????,?????,?????????? ?
????EB?????RB--????
????,?????????????
????????
6
?????EC --?????????????????
?????RC--???????????????
????C1 ?C2 --?????????????????,?????????????
??
???
????????
7
????????
???????????
8
15.1.3 ?????????????
uo 0 uBE UBE uCE UCE
?????(ui 0)?
9
??
(1) ????????,??????????? ?????IB?UBE?
IC?UCE ?
(IB?UBE) ?(IC?UCE)???????????????????,????????
10
uo 0 uBE UBE uCE UCE
uo ? 0 uBE UBE ui uCE UCE uo
uCE UCC- iC RC
?????(ui ? 0)?
?????(ui 0)?
?
UBE
11
??
(2) ?????????,?????????? ???????,????????????
?????,????????
????
????
?????

????
????
12
??
(3) ???????,???????????, ????????????
(4) ???????????????180, ??????????????
13
1. ???????
(1) ?????????????????,?????? (2)
?????????,??????????? (3) ????????????????????? (4
) ????????????????????????,?????????????
14
2. ?????????
??????????????????????????????,??????????????,??
??????????????????,?????????????
??????????(????)???,
??????????
????????????(???)???,
???????????????? ??????????
15
??????????????
??????? C ?????(??????)
??
??
????
?????????????Q ( IB ? IC ? UCE )
16
?????(?????ui??????)
XC ? 0,C ?????????????,????????,?????????????
????
??
??
????
??????????????????????????
17
15.2 ?????????
???????????(ui 0)???????
???????????????
?????QIB?IC?UCE ?
???????????? ???????????????? ??????????????
??Q???? (1) ????????????? (2)
???????????????,?????????
18
15.2.1 ?????????
1. ?????? IB
?KVL UCC IB RB UBE
?UBEltlt UCC?,
2. ???????UCE?IC
????????
?KVL UCC IC RC UCE
?? UCE UCC IC RC
19
?1????????????
??UCC12V,RC4k?,RB300k?,? 37.5?
?
?????IB ? IC ??????
20
?2?????????????????
?KVL???
?KVL??
??1??2??,??????,????????????
21
15.2.2 ?????????
???????????
?? ?????????? ?????????? ????
?? 1. ??????IB
2. ???????IC ?UCC
???????
22
?IB????????????????????Q?
?????
23
15.3 ?????????
???????????(ui ?0)???????
???? ????????Au?????ri?????ro??
???? ?????????????
???? ???????,???? ???? ??????????
?? ??Au? ri? ro????????,??? ????
24

• 15.3.1 ???????

?????? ???????????????????????????????????????,
??????????

?????? ???????(???)????????,???????????????????
???????
??????? ???????????????????????????Au?????ri???
??ro??
25
1. ??????????
??????????????????????
(1) ????
??????,?????????????????????????
???? ????
Q
?UBE
????????(B?E??)??rbe????,??rbe???ube? ib??????
????
????????
rbe???????????
26
(2) ????
??????????? ????????????
??????????
????????(C?E? ?)???????? ic?
ib ????,??????ic? ib??????
????
????20200??,??????hfe???
rce??,?????? ?rce????,???????
????????
27
1. ??????????
??????
?????
?ib
????C?E??????????ic?ib?????
????B?E????rbe?????
28
2. ???????????
???????? ????????? ????????? ????????? ??
????
??????
29
???????? ????????? ????????? ????????? ??
??????
????????????,????????????????????
30
3.?????????
?1
????????????????????
??????????(??RL)?
??????,???????
?rbe?IE??,???????? IE???
31
?2
??1??2??,??????,???????? Au ??????????????????
ui?ib???? uo?ic ????
32
4.???????????
????????(????????)??,?????,???????????????????????
??,?????????????
?????????????,??????
??
??????????????????????????????????,???????????,???
???????????????
33
?1
34
5. ???????????
???????(????????)??,??????,???????????,???????????
????????
?????????,??????
??
?????????????????????????????,??????????????,???
???????????????
35
?3
??
????????? 1. ????? 2. ????? 3. ??????
?ro??? (1) ????RL
36
?4
??
37
15.3.2 ???
1. ?????
??????? ????? iC?? ?uCE??????
C
???????
D
38
2. ????
RL?
?uO?ui???(????)????????????????
39
3. ?????
??Q?????,??????????????,?????????
?Q????,
??????????,???????
??????????????
40
??????????,???????
?Q????,
??????????????
??Q????,????????????,????????????
41
15.4 ????????
??????????????????????????????????????????????
???????
???????????,???????,????????????????????????????
,???????????,???????????????,??????????????
42
15.4.1 ?????????????
??????????,??????, UBE??? ? ? ICBO ??
????,?UCC? RB???, IC? UBE? ? ?? ICEO
??,?????????????
?????, IC???,?Q????????
43
iC
?????,????????
?? ??????, IC???,?Q???????,??????
T???????????,????????????
Q
O
uCE
?????????? Q??????,????????????????? IC
???,??????IB,????Q????,??Q??????
44
15.4.2 ???????

• 1. ??Q????

VB
????????,???????
45

• 1. ??Q????

VB
?????????,???????
46
?????
?Q??????????I2?VB????? ? I2 ??,RB1?RB2??????,?????
,??????? ?VB????VE???,?UCC???,???UCE??,???????????
???????
VB
VE
???????? I2 (5 10) IB,VB (5 10) UBE,
RB1?RB2???????????
47
Q??????
RE?????? ???RE??,??Q?????
???RE??,??????,????????????CE?
VB
VE
VB ??
48
2. ????????
???
VB
49
3. ????
????
??????? CE ?RE ??, RE????, Au,ri,ro??????????
50
??CE?? ??????
51
???????
?????CE
?????CE
Au??
ri ??
ro??
52
????????????
???????RS ?
???
53
?1
????????,??UCC12V, RC 6kO, RE1 300O,
RE2 2.7kO, RB1 60kO, RB2 20kO RL 6kO
,???ß50, UBE0.6V, ?? (1) ????? IB?IC ?
UCE (2) ???????? (3) ????ri?ro? Au?
54
?
(1)????????????
????
55
(2) ????????Au? ri ? ro?
56
15.5 ?????????
???????????????????????????????????,??????????
,?????????,?????????????????????????????
????
????????????Au??? f ???
???????????????? ??? ? ??? f
???
57
???????? ??
??????????
Au
Auo
???
O
f
fL
fH
????
??????
??????
58
????
???????????????????,????????????,??????
??????????????????,??????????CO????????CO?????
?,????????????,??????
??,???????????????????,????????????????? (????
?????????????????????????????)
59
????
?????????,?????????????????,??????????????????
??????? ????? ??,???????,??
????????(??????)?
CO?????????,???????
??,??????????????????????????????????????
60
????
?????????,?????????????????????,???????
CO??????,??????,????????,?????????????? ?
???,?????????,????????,?? ????????(??????)?
??,???????????????????????????????
??????????????????
61
15.6 ?????
????????,???????????????,????????????
???????,?????????
62
15.6.1 ????
????
?Q?
63
15.6.2 ????
1. ??????
??????
??????Au?1???????,??????????,????????
64
2. ????
???????????,?????? ri ?????
65
3. ????
????????????,???????
66
????????(?????)???
1. ????????1,???1 2. ????? 3. ????? 4.
????????
67
????????
??????????????????????
1. ??????,???????????????,????????,????????
2. ??????,??????????????,????????,????????
3. ?? ri ?? ro??? Au ?1 ???,??????????????????
?,????????,????????????????????
68
?1
????????,??UCC12V, RE 2kO, RB 200kO,
RL 2kO ,???ß60, UBE0.6V, ?????RS
100O,?? (1) ????? IB?IE ? UCE (2) ???????? (3)
Au?ri ? ro ?
.
69
?
(1)????????????
????
70
(2) ????????Au? ri ? ro?
??????
71
15.7 ??????????????(?)
?????????
1.????
??????????????????????????????????
???????????????????????
??????????Q?
????????
?????
?? ????
??????
72
2.????????
?????????? C2 ?????????
???
???
???
??
73
(1) ????
?????????,?????????????????,????????????,????,??
???????
????????????????????
74
??????
(2) ????
???
???
75
?1
?????????????, ??ß1 ß2 50,
T1?T2??3DG8D? (1) ??????????????(UBE0.6V) (2)
??????????????? (3) ???????????????????
76
?
(1) ????????????????
?????????
77
?
???????????
78
?
???????????
79
(2) ?? r i? r 0
??????
?????????,????????? ri ??????????ri1??????????,?
?????ri1?????,?????????????????? ri2?
80
(2) ?? r i? r 0
81
(2) ?? r i? r 0
82
(3) ??????????????????
?????????????
83
(3) ??????????????????
????????????????
???????
84
15.8 ??????
????????????????????? ??????????????????????
85
???????????
(1) ????????????
(2) ????
??????????????,??????
??????????????
????????????????????
?????????????
86
??????? ??????????????????????
???,??????????,??????????????????
????????????????????? ?????????????
??? ????
????? ????
?? ????
?????????????????????,???????????????????
87
?????????????????????????????
???????,????????????????????
?????????,????????,?????????
88
15. 8. 1 ???????????
??????????????????????
?????????
?????????
????????
??????,???????,????????????????????
89
1. ???????
???,ui1 ui2 0
uo VC1 - VC2 0
???????IC??VC? (???????)
uo (VC1 ?VC1 ) - (VC2 ? VC2 ) 0
??????????????????????????
90
2. ????
???? ????
(1) ???? ui1 ui2 ?????????
??????????????,????????,?????????????
???????????????,???????????????
91
2. ????
???? ?????
(2) ???? ui1 ui2 ?????????
???????????,???????,
uo (VC1-?VC1 )-(VC2 ? VC1 ) -2 ?VC1
????????????
92
(3) ????
ui1 ?ui2 ??????????
???? ???? ???? ???? ??? ?????
?1 ui1 10 mV, ui2 6 mV
???? ui1 8 mV 2 mV
ui2 8 mV - 2 mV
?2 ui1 20 mV, ui2 16 mV
???? ui1 18 mV 2 mV
ui2 18 mV - 2 mV
????
????
??????????????,?????????????
93
15. 8. 2 ????????
RE??????????,??????????
EE????RE????,??????????
??? RP ??????
94
15. 8.3 ??????????????
1.????
????,? IB1 IB2 IB, IC1 IC2
IC,??????? RP ???
???????????????, ?????????
????? VE ? 0
???????
???? ????
??????
95
2.????
???????????????????,??????,?? RE
???????,RE ?????????,? RE ?????????,??????????????
???
??????????
????
????????
96
??????????????????????
?????????????????
??
??????????????
??????????????
97
?1?????????????,??UCC12V, EE 12V, ?
50, RC 10 k?, RE 10 k?, RB 20 k?, RP 100
?, ??????????RL 20k?, ?? ????????????????
?
??
98
???????????????????
?????????????????????? ????????
???????????????????,? ??????,
??T1????T2?????, ?? ???????ui
??????????????? ????????????????????15.7.1?
99
(Common Mode Rejection Ratio)
15.8.4 ?????
???????????????????????????
??????
?????
KCMR??,?????? ?????????,??? ??????????
??????
100
???????,???????????
Ac 0 ???? uo Ad (ui1 - ui2 ) Ad
uid
????????,? Ac? 0, ?????? uo Ac uic
Ad uid ??????????? ?
101
15.9 ??????????(?)
??????????????????,????????????????????????????
?????????

• 15.9.1 ????????????

(1) ???????????????????
(2) ??????,???????
102
????????
?????? ???????? ????????, ??IC??,???, ???????
?????? ????????? ????????, ??IC0,??????,
???????
??????? ??????????????,??IC? 0,????????
103
15.9.2 ????????
?????????????????????????????????????????,????
??????????????(Output Transformerless)??,??OTL????
?????????????,???????,????????(Output
Capacitorless)??,??OCL??? OTL?????????,
OCL??????????
104
1. OTL??
(1) ??
T1?T2????? ??NPN????PNP? ?????????? ??????? ???
???
(2) ???(ui 0)
OTL????
, IC1? 0, IC2 ? 0
???????
105
(3) ???
?????UCC/2 ????????????
??????ui????
ic1
T1???T2?? ???????
uo
??????ui????
ic2
T2???T1?? ????,?????
????
????????,??????????,??????????????????
106
(4) ????
?????ui?????, ???????????? ?????????
????????? ????????????, ui lt ????????????
?????????
???????????????,????????????,??????????
107
(5) ???????OTL????????
?????T1 (NPN?)?T2(PNP ?)????????
R1 ? D1?D2 ??????????????,?????????
OTL????????
108
??????????????
??????
?? 1
ib ib1 ,
ib2 ie1(1?1 ) ib1 ,
ic1? 1 ib1 ,
ic2??2 ib2 ?2 (1?1 ) ib1,
ic ic1 ic2 ?1?2 (1??1 ) ib1 ?
?1 ?2 ib1
109
??2
?????????????????????
??????????? ? ? ?1 ?2
110
2. ?????(OCL)?????????
OCL?????? ?????????? ?OTL???????
OCL????????
111
15.9.3 ???????
????LM386???
??,?? ????
?? ?????????????????????,?????????????
????, ?? ????, ?? ???????
??,??????
112
15.10 ??????????(?)
??????????????????????????,???????????????????
??????,?????????????,?????????,????????
????????????
??????
????????
?????????????
????????????????? ????N???P????
113
15.10.1 ???????
1. ??????????(???????,????)
(1) N?????????
????????????????,??????????
114
????????????????????????,?????-???-???????,??M
OS?????
??
????????,????????,??????,????1014? ?
115
(2) N???????????
??????,N????N??????P?????,??????????????PN?
?
?????UGS 0 ?,??????????????????,??????PN??????
?,??????,?????????
116
?UGS gt 0 ?,P???????????????????,??????????????U
GS gtUGS(th)?,????????N??,????,?????????N?????,?D-S
????? UGS??, ???? ???
117
?UGS ? UGS(th)?,???????????,????,????????????UDS,
??????ID???
????UDS???? ?ID???????? UGS?????,?? ?????????? ???
??
????????UDS?,????????? ???????????????UGS(th)
?
118
(3) ????
???
?????
????UGS(th)
???
??????
??????
119
(4) P?????
SiO2???
??
??
?????? P?????
??????????UGS ? UGS(th)?????????
120
2. ??????????
??MOS?????????????,??????????(???-???)
SiO2???? ?????
(1 ) N??????
??
???N? ????
121
????????????????,???UGS 0?,????????????UDS,???
???? ID ???

???????? IDSS??,?????????
?UGS gt 0?,???????, ID ?? ?UGS lt 0?,???????,
ID ?? UGS????,????, ID????
?UGS???????,N???????, ID 0,????????????(???)?
???UGS??????,?UGS(off)???
122
(2) N?????MOS??????
????MOS?UGS 0???????,???????????????
IDSS
????
UGS(off)
123
2. ??????????
(3) P ??????
SiO2???? ?????
???P? ????
124
???
??????? ?????? ??????
G?S????? ????????? ????
125
3. ?????????
(1) ???? UGS(th)????MOS???? (2) ????
UGS(off) (3) ????? IDSS
(4) ???? gm???????????
?????
?????????????????????
126
???????????
? ? NPN?PNP N???P??
127
15.10.3 ????????

????????????????????,??????????????????????????

??????????????????????????????????
????????????????????????????????????????????????
?
????????????????????????,????????????
128

• 1.?????????

T?N?????????
UGS RSIS RSID
????UGS??????????????,???????
???MOS??UGS0?, ID? 0,?????????????
129
??????????????( ? )
???
?????????
UGS RSID
????UGS(off)?IDSS?????,??UGS?ID
? UDS UDD ID(RD RS) ??UDS
????MOS????????????????????
130
???UDD 20V?RD3k?? RS1k?? RG500k??UGS(off)
4V?IDSS8mA, ????????
?????
?????
UGS 1? ID
?? UGS1 2V?UGS2 8V?ID12mA?ID28mA
?UGS2 ltUGS(off) ??? , ??????UGS 2V ID2mA?
UDS 20 2( 3 1 ) 12 V
131
2. ???????
(1) ????
???
?????????
?? RG ?????
????UGS(off)?IDSS?????,??UGS?ID
? UDS UDD ID(RD RS) ??UDS
132
(2) ????
????
??????
RG???? ?????ri ?????
????
????
133
3.?????
????
??????
??????????????
134
??????????????,????
????????????????????
UGS ??, RDS???
N?????????????