§ 8-2 Superposition,source transformation and
Thevenin’s theorem
Superposition:
24105 )10(5 jjj ???? 10510 )5(10 jjj jj ???? 42510 )5(10 jjj ???
2286 284421024 )4210)(24(1'1 jjjjjj jjjV ?????????? ???????
1)24(86 42)5.0(''1 ????????? jjjjV
2421024 )42)(24(1'2 jjjj jjV ????? ?????
22)1024(86 42)5.0(''2 jjjjjjV ???????????
VjjVVV 21122''1'11 ??????? ???
VjjjVVV 42222''2'22 ???????? ???
'1?V '2?V
' 1?V ' 2?V
Source transformation:
3.06.0421024 1224 jjjj jjI ?????? ?????
VjjIjV 21)24(241 ?????? ??
VjjjIV 42)12()42(2 ??????? ??
1
?V 2?V
A?0 1?
Thevenin’s theorem:
Vj
jjjV oc
36
)42(5.0)24(1
??
?????
?
26)42()24( jjjZ th ??????
3.06.01026 36 jjj jI ???? ???
VjjjV 21)]3.06.0(1)[24(1 ???????
VjjjjV 42]5.0)3.06.0)[(42(2 ????????