4.1
u 2(t) , . 4.1, , : u 1(t) = 6 + 10cos 105 t + 5cos (2×105 t + 60) . : R 1 = R 2 = 200 , L = 1. .
. 4.1
, u 1(t) = Um 1cos (w t + j1), :
,
, :
.
-
,
, ,
.
R 1 = R 2 = 200 , L = 103 ,
;
.
w = 0,w1 = 105 1, w2 = 2w1 = 2×105 1.
w = 0: ½ H (j w)½ = 1; q(w) = 0.
w1 = 105 1: ;
.
w2 = 2×105 1: ;
.
k -
, k - | H (jk w1)| , q(k w1).
u 2(t) = 6 + 10×0,79cos(105 t 18,4) + 5×0,63cos(2×105 t + 60 18,4) =
= 6 + 7,9cos(105 t 18,4) + 3,15cos(2×105 t + 41,6).
. 4.2 , . 4.3 .
5
5.1
(. 5.1) l = 10 r = 200 U 1= 5 . l = 12 . . Z .
. 5.1 |
, , , (I 2 = 0) : U = U 2½cos b y ½.
U 2 , :
.
y 0 l/4. . 5.1. (. 5.2), , | cos b y | .
.
5.1 | . 5.2 | ||
b y, | y, | | cos b y | | U, |
0,867 | 8,67 | ||
1,5 | 0,707 | 7,07 | |
0,5 | |||
|
|
5.2
. 5.3 |
R 2 = 400 (. 5.3).
, l = 10 , r= 200 , l = 12 , U 1 = 5. Z .
/.
:
,
.
, , I 2 = U 2 /R 2:
,
.
. 5.4 |
, , . 5.4.
:
;
;
;
.
5.3
. 5.5 |
Z 2 = R 2 + j w L 2(. 5.5). , l = 10 , l = 12 , r= R 2 = 200 , L 2= 1,27 , U 1= 5 . Z .
c = 3×108 /.
l = c = /f,, :
f = c /l = 3×108/12 = 0,25×108 = 25 .
Z 2 = R 2 + j w L 2 = 200 + j 6,28×25×106×1,27×106 = (200 + j 200) .
y 1 (k = 0), Z = R .
.
y 1 x 2 > 0 j p > 0 :
.
.
R > r
.
R > r, U = U max.
, , (l 1) R (. 5.5):
:
U min = U max K = 13,2×0,383 = 5 .
, R :
,
y' , .
. 5.6 .
. 5.6
.
1. / .. . .: , 1986.
2. : / .. , .. , .. ;. . .. . .: , 2000. 592 .
3. : . .2 / .. ; . , 2003.
................................................................................................................ 3
1. 5
1.1. RC - 5
|
|
1.2. RL - 8
1.3.
........................... 12
1.4. ()
() ...... 15
1.5. ............................ 20
2.
................................................................................................ 24
2.1. RC - RL -
............................................................................. 24
2.2. RC -
......................................................................... 28
2.3. RL -
......................................................................... 31
3.
................................................................................................... 36
3.1.
1- .................................................... 37
3.2.
........................................................................................ 40
3.3. RC - 2- 41
3.4.
3- ................................................................................... 49
4. ....................................................... 54
4.1. .......................... 54
4.2.
................................................................................................ 57
4.3. . . -
................................................................................................ 60
5. .................................... 65
5.1. ............................................... 66
5.2. ................................................ 71
5.3. .......................................... 77
15.................................................................................................. 85
......................................................................................................... 114