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elektr zanjirlari nazariyasi
J/p
12
; 10 60 10 80 10 140 10 4 10 2 10 10 ) 10 4 10 1 10 2 ( 20 ) ( ) 0 ( ) 0 ( ) ( 3 3 3 3 3 3 3 3 3 3 1 3 2 1 3 2 1 3 1 11 P P P P R R P I R R R P u R R R R R P I P u p c c
); ( ) ( ; 10 75 , 1 10 12 10 60 10 75 , 1 10 12 10 60 ) ( ) ( ) ( 2 1 9 6 3 9 6 3 11 11 P I P I F F P P P P P P P I k c ; 10 75 , 1 10 12 10 60 ) ( 2 1 9 6 3
F P P I c Sigimdagi kuchlanishning tasviri:
3.4) Yoyish teoremasidan foydalanib tok va kuchlanishlarning haqiqiy qiymatlarini hisoblaymiz:
k t P k c c k e A t i P I 1 ) ( ) ( , bu yerda ) ( ) ( 1 2 1
k k P F P F A ; ) (
( lim
P F P P A k P P k k ; Tok tasvirining mahrajini nolga tenglashtirib, uning ildizlarini aniqlaymiz va tok originalini topamiz: F 2 =12 ·10
6 p+1,75
·10 9 =0 ; ) ( ) ( ) ( ; 6 14 10 12 10 75 , 1 1 1 2 1 1 1 6 9 t P t P c i i i e P F P F e A t i c p F 1 (p)= -60 ·10
3 ; F
1 (p 1 )= -60 ·10
3 ; F
2 (p)=12
·10 6 p+1,75 ·10 9 ; F 2 ’(p)=12·10 6 ;
; 10 5 10 12 10 60 146 3 146
6 3
e e t i t t c
A e t i t c 146
3 10 5
Pkt c C e Pk F Pk Pk F F F t U p F p p F p p p P U ' 0 0 10 75 , 1 10 12 10 20 10 240 2 3 2 3 2 3 9 6 9 6
Kuchlanish tasvirining mahrajini nolga tenglashtirib uning ildizlarini va kuchlanish originali ifodasini topamiz: ; ) ( ) ( ) 10 75 , 1 10 12 ( 10 20 10 240 ) 10 75 , 1 10 12 ( 10 35 10 240 10 15 20 4 ) 10 75 , 1 10 12 ( 10 60 20 10 4 1 10 75 , 1 10 12 10 60 ) 0 ( 1 ) ( ) ( 2 3 3 6 9 6 3 6 9 6 9 3 6 3 6 3 6 3 P F P P F p p p p p P p p P p p p u pC p I p U c c c
13
t u 1 (t) t u U 0 0 ; 0 10 75 , 1 10 12 9 6 2 p p p F p
; 0 0 p
; 146
1 1
p
; 10 20 10 240
9 6 3 p p F
9 3 10 20 0 F
; 10 15 10 20 146
10 240
10 20 10 240 9 9 9 1 6 1 3 p P F
; 10 75 , 1 10 12 9 6 2
P F
; 10 75 , 1 0 9 2 F
) 10 75 , 1 10 12 146 ( ' 9 6 1 2 1 P F P
B e e t U t t c 146
146 9 9 9 9 58 , 8 42 , 11 10 75 , 1 10 15 10 75 , 1 10 20
B e t U t c 146
58 , 8 42 , 11
O'tish toki va kuchlanishining topilgan qiymatlari, klassik usulda hisoblab topilgan qiymatlar bilan mos keldi. 2 – topshiriq 1. O'TISh JARAYONINI VAQT USULIDA HISOBLASh
Barcha variantlar uchun zanjir kirishidagi videoimpuls beriladi.
3.1. N variant nomeri bo'yicha (N-talabaning gurush jurnalidagi tartib raqami) sxema tanlang va uning elimentlari qiymatlarini hisoblang. (3.1-va 3.2-rasmlar).
В К М U c T u =5 τ;
; , 2 2 мкГн К M L
мкФ К М C , 2
R=(М+К),Ом;
bu yerda M- guruh nomerining oxirgi raqami, K=2 AEA fakulteti uchun; K=4 MEA fakulteti uchun; K=6 RRT fakulteti uchun; K=8 maxsus fakulteti uchun. 3.2. Berilgan zanjirning o'tish xarakteristikasini hisoblang. 3.3. 0
t t 4 oraliqda amplitudasi U 0 va uzunligi t u ga teng bo'lgan videoimpuls tasirida zanjir chiqishida hosil bo'ladigan U 2 (t) kuchlanishning ifodasini yozing. 3.4. t 4 t oraliqda zanjir chiqishida hosil biladigan U 2 (t) kuchlanish ifodasini yozing. 3.5. U
2 (t) o'tish kuchlanish uchun vaqtning 8 ta qiymatida (bulardan 4 tasi 0 t
t 4
oraliqda va 4 tasi t 4 t oraliqda) son qiymatlar jadvalini tuzing. 3.6. U 2
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Hisoblash uchun namuna. 1) boshlang'ich ma'lumotlar U 0 =40B; L=10мкГн; R=4Ом; t u =5 τ
2.3-rasm. Tekshirilayotgan sxema.
2) operator usulidan foydalanib, berilgan zanjirning o'tish xarakteristikasi h(t) ni hisoblaymiz. 2.1) birlamchi ta'sir (3.4-rasm) va nolinchi boshlangich shartlar uchun ekvivalent operator sxema tuzamiz; P p V 1 ) ( 1 2.4-Operator o'rin almashish sxemasi.
2.2) operator uzatish funktsiyasidan foydalanib, U 2 (P) ni aniqlaymiz:
; 2 1 2
pL R pL R pL R P I PL R P I P V P V P H
p F p P F R pL P R PL p V p H p V 2 1 1 2 2
2.3) Bizga ma'lum bo'lgan U 2 (P) tasvirdan foydalanib haqiqiy qiymat (original) ni aniqlaymiz:
; 2 t h t u
PL P R PL p V t h 2 2
Yoyish teoremasidan foydalanib qidirilayotgan vaqt funktsiyasi h(t) ni aniqlaymiz:
P F P P F R PL P R PL P V 2 1 2 2
bu yerda
; 1
PL P F 17
дан R PL P F 0 2 2
1 5 1 10 8 2 c L R p
F 2 (P) bitta P 1 ildizga ega bo'lgani sababli h(t) ning ifodasi quyidagicha bo'ladi:
t P e P F P P F F F t h 1 1 2 1 1 1 1 ' 0 0
Bu ifodaning alohida elimentlarini topamiz: F 1 (p)=pL+R; F 1 (0)=R;
; 2 1 1
R L L R P F
F 2 (p)=pL+2R; F 2 (0)=2R; F 2 (P 1 )=L; R L L R p F P 2 2 ' 1 2 1
Shunday qilib,
t t L R e e R R R R t h 5 10 8 2 2 1 2 1 2 2
t t e e t h 5 , 0 5 , 0 5 , 0 5 , 0 5 10 8
3) 0 t t 4 oraliqda U Download 0.68 Mb. Do'stlaringiz bilan baham: |
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