????????,??????????????:?????????????????????????(Thevenin - PowerPoint PPT Presentation

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Title:

????????,??????????????:?????????????????????????(Thevenin

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Title: Author: geoffrey Last modified by: NML Created Date: 10/27/2003 1:12:37 PM Document presentation format: – PowerPoint PPT presentation

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Title: ????????,??????????????:?????????????????????????(Thevenin


1
??????
  • ????????,????????????????????????????????????
    ???(Thevenins theorem)??????,????????(Nortons
    theorem)?

 ????????? ??????????????,?????????????,????????
??????????????????????????????UOC,????????????????
???????????RO? ????????????1????????
?1 ???????????
2
????2(a)???????????iL?
?????ab?????????????,????RL??????????,??????,?????
?????????,??????,??????????iL?
(b)
(a)
?2 ????
3
(1)??????????UOC,??2(c)??
(d)
(c)
(2)???????????RO,???????????????(??????,?????),??2
(d)??,??
4
  • (3)??????????????????,??2(b)??,????RL?,??????iL

?? (1)???????????i???u??,????????????????????,???
??????? (2)???????????,??????????????,?????????,?
?????
5
?? ???????????,???????????????,?????????iSi?????
?????,??3(a)?????,?????????????,?????????????u(??3
(b))
  • ??U???????????????????,U?????i????????????

(a)
(b)
?3 ?????????
6
A
?3 ?????????
??3(b),UUOC U iRO
?? UUUUOCiRO
?????????3(c)???????????????????,??3(d)
7
??
  • ????????,????????????????,???????????????????????
    ,??????????????????,????????,?????????????????????
    ?????,????????????????????

?1 ????4??,??????US,??R1?R2?R3?R4????G???RG??,??
?G???iG?
???????????? ???,?????6???,????6?????????????????
???,???????????????????,??????(G)??,??5(a)??,??a,b
????????????????
8
(b)
(a)
(d)
(C)
  • ?5 ?1????

9
  • (1)?????A?????UOC,??5(b),??

(2)???A?????RO,??A???????US??,?? 5(c),??
ROR1//R2R3//R4
(3)????????,??5(a)???????5(d)???
????iG
???R2R3R1R4?,iG0,??????????
10
  • ?2?6????,???R3???i3???R3?5 O???10 O ,????????

? (1)?a,b????????????????????????
?????
?????
11
(2)??c,d?????????????Rcd?
(3)??,?6?????????,???
12
(4)??R3?????????????????????,??,?R310 O?,??i3?
???R3?5O???10 O?,??i3???(3.532.45)1.08A
13
?????????
??????????????,?????????????,????????????????????
??????????????????isc,?????????????????????????RO?

????7??????
?7 ????????????
14
?????????????????????????USU??????????,?????????
??i??????????????????????i?????US?????????i?????
?
?3 ??8?????????????
?(1)???????iSC
?8
15
(2)?????RO
(3)???????
16
???????????
????????????????
???9(a)????????????????????????????????,?????????
???
?9(a)
17
?9(b)????????????????
?9(b)
18
?4??10???????????
? 10
????????????????,????????????????????????
19
??
?????????????????????????????????????????????????
????,??????????8,????????????????,????????????????
?????
??????????????????????????????????
20
??
1????1??????,?????????? 2????2??????i5?U1?
?1?
?2?
21
3????3????????????N,???ab???????R??R10
O?,u8V?R5 O?,u6V,???N???????? 4????4??????????
? ?
(a)
(b)
?4?
?3?
22
5????5?????????????
(b)
(a)
?5?
23
6???6???????????,??U(t)2sin(0.5t?150o)V,?????????
?
?6?
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