(2) ????????????????,???????????????????: ICM ?UCEM ? PCM ?

1
?9? ??????
9.1??????????? 9.2??????????????? 9.3?????????????
9.4??????? 9.5????
2
9.1 ??
???????? ??????????,??????????????????????
????????


? ????
3
?. ???????
(1)????Po????
(2) ????????????????,??????????????????? ICM
?UCEM ? PCM ?
4
(3) ??????????,???????????
(4) ???????????????,?? ?????????????????????(?)?
Pomax ????????????? PE ??????????
(5)??????????
5
?. ?????????
????????
?
6
????
(?????Ui?)
?????????????????
????????,???????ABQ???,?????????????
??PO?,????????????,????Vom ?Iom ????
??????
7
???????
????????
????????????

• ?????
• ?????,???

8
?. ??????
?????????????????,????????????
??????????
???????180
???????180
????????180
????
9
9.2 ????????????
?. ??
??????????????NPN?
PNP???????????? ??????????
10
??????(?ui????)
???
ui 0V ? ic1?ic2?0(??????) ? uo 0V
???
T1??,T2??
ui gt 0V
iL ic1
ui ? 0V
T1??,T2??
iLic2

??T1?T2????????????????
11
???????
????
12
??
(1) ???? ICQ?IBQ??? (2) ??????????? (3)
???????
13
?????????
????
????????????VomVCC- VCES
vo-vce
14
??????
(1)?????????Pomax
??????Po
15
(2)??PT
?????????????
????
16
(3)???????PE
?
(4)???
17
?.????????
?Vom? PT1??, PT1max?
?PT1?Vom???? PT1max???Vom0.64VCC?? ?Vom0.64VCC?
?PT1???
18
????
1. PCM? PT1max 0.2PoM
19
???????????
OCL??
??????
20
9.3 ?????????????
?. ????????????
1.????
????? R1?D1?D2?R2??
??? T1?T2?????????????D1? D2???????,????????????
????????
???? ui ?????????? T2 ??,T1 ?????????,??????????
??T1??,T2 ?????????,??????????
21
????
??????????? ICQ ?IBQ ?????????????,??????

22
2.????????????
????
23
3. ????????
??????????????????
??NPN?
??PNP?
?? ? ?1 ?2
????????????????????
24
4. ????OCL?????????
T1?????(???)
T2?R1?R2UBE????
????R1?R2??,b3?b5????? UBE2 ????????
T3?T4?T5?T6???????????
???
?????T4?T6??NPN????,?????????
25
?. ????????????
1?????
. ?????
. ????????
(1)????
?
? T1?T2 ????,
?
26
(2)????
?????0.5VCC?????????????
(???????)
????????,??????????,?????????????????,????????
27
(3)???????
??????????,? ui ???????
28
2???????????
(1) ????
??R1?R2?????,??
???????
(2)??????
????
????????
????????????????,???VCC/2?
29
3. ???????????
???
C3???,?????????
???
??C3??,????????,?D??????????????????????VCC/2?
30
9.4 ?????????
?????????OCL???????????????
(1) ???????????(T1?T2?T3) (2) ????(R1?D1?D2) (3)
?????(T5) (4) OCL????????(T7?T8?T9? T10) (5)
?????(Rf?C1?Rb2???????????) (6) ?????(T4) (7)
????(C5?R4) (8) UBE????(T6?R2?R3) (9)
??????????(Re7?Rc8?Re9?Re10)?
??????,??????????
31
???OCL???????
?????
???
??????
UBE ?? ??
???
?????
????
??? ??
??
32
???? LM384????
14 -- ???( V cc)
3?4?5?7 -- ???( GND) 10?11?12 -- ???(GND)
2?6 -- ??? (??2???)
8 -- ??? (?500? ?????)
1 -- ?????(5 ?)
9?13 -- ??(NC)
33
???? LM384 ????????
????
??????
???????
????
????,??????
??????
34
????
1.?????????????????,?????????????????????????,???
?????????? 2.??????,???????,BJT?????????????,?????
????????????????????????????????78.5? 3.?????????
??????? OCL(???)??
???? OTL(???)??

???? 4.???????????????,???????????????????????????
?VMOS????,??????????????????
35
5.1???????????
????????
1.????Po????
??Vo?Io????
2.?????
Po?,?????????
3.????????
???????,??Po? ??????
4.??????????
36
????????
?????????,??????? ???????????
?????????
37
?? ??? ? ? ???
??
??? ???
??
??
360?
??
??
??? ????
180?
???
??? ????
180? 360?
??
38
5.2 ?????????

• ????

??NPN?PNP??????? ????? ?????
??OCL????
OCL(Output Capacitorless)
39
??????
??????????

• vi????

Vi????
?? ?????,????(?????)????
??
??
40
?????????
vo-vce
????????????VomVCC- VCES
41
??????
1.????Po
??????
????????
?????????
42
2.????PV (PE)
43

• 3.??????PT

?Vom? PT1??, PT1max?
?PT1?Vom????PT1max???Vom0.64VCC?? ?Vom0.64VCC??
PT1????
44
4.???

• ?Vom VCC ?,?maxp/4 78.5?

45
??????
46
5.3????????????

• 5.3.1 ???????
• 5.3.2 ??????????
• 5.3.3 ????
• 5.3.4 BTL????
• 5.3.5 ?????

47
5.3.1 ???????
OTL(Output transformerless) ???
??VkVCC /2
???Co??
48
5.3.2 ??????????
??????????????? ????????
???????????
???? ?NPN-NPN?PNP-PNP?????
49
5.3.3 ???????

• ???????????????????
• ???
• ??????????????????? ??????????????,??????(??????
  ??????)
• ???????????

50
5.3.4 BTL????

• ????????????????
• BTL??????????,????????

51
5.3.5 ????? ?????????,?????????????
?????????????????,??????????????????????????????
??? ??????????????????????,?????????????????
??