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:::5B%%
l
T
H2.3: S¬ ®å nguyªn lý m¹ch lÆp
k

k
+
()J5?'66
()5K
Q"2WZ)"3
::5 ả 
l
T
H2.4: S¬ ®å nguyªn lý m¹ch ®¶o
k

L
L
k
+
k
+
STk

05/07/14
::)5((

T
&

&
+
k
l
k
T
k

k
+
H2.7: §Æc tÝnh kh©u h¹n chÕ
05/07/14
:'8
u!!'v=>
 !/ 4C. 4 59!<ĐĐ ả ả 
u!.D
mmmmm836[
+/() 4 59!<ả ả 
/w,3().4!5- 04!
14!()6
:5("812
:DE
H2.8: S¬ ®å m¹ch nguyªn lý
l
T
k
x

pR
K
R
R
U
U
F =−==
∑
)(
U
2
=K
R
.∆U
1
::D%FGH
H2.10: S¬ ®å m¹ch nguyªn lý
l
T
k
x
L


+
k
+
L

k