:
1. ;
2. ;
3. .
, . 1 UG ~ 10 30 . I 0 = (2 - 6) . . ( E ), I 0 I 0 = U 0 / R 8 (S 4 2).
.
" " "<" ">".
:
f = 1
UG = 1030
I = 26 .
! S2 .
1. H - (h11 h21 h22) ( S 5 1).
h11 = dU / dI ≈ U R 1/(UG - U ) U = 0; ( : S 1 - 3; S 2 - 1; S 3 - 3);
h21= dI / dI ≈ (1/ R 9+1/ R 19) U R 1/(UG - U ) r ~0; ( : S 1 - 3; S 2 - 1; S 3 - 1; S 6 - 3);
h22 = dI / dU ≈ [ R 18(U '/ U "-1)]-1-(1/ R 14) RG ~ ¥; ( : S 1 - 4; S 2 - 1; S 3 - 4; S 6 - 1 2).
U , U UG - , . U ' U " , S 6 1 2.
2. R = 910 , (S 1 - 3; S 2 - 1; S 3 - 4; S 4- 2; S 5 1; S 6 - 1), .. K, r r, . , , U S 6 - 1 2. :
K = U / U (S 1 3);
r = U R 1/(UG - U )(S 1 3);
r ={ [ R 18(U '/ U "-1)]-1-1/ R 14 }-1 (S 1 2).
U ' U " , S 6 1 2.
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3. R = 500 (S 5 - 3) , (S 2 2; S 3 3; S4 2), UG= 0,07 0,08 . I 0.
:
K = U / U (S 1 2);
r = U R 2/ (UG - U ) (S 1 4);
r = R 12(U '/ U "-1) (S 1 2);
U - ; U ' U " - , S 5 - 3 2.
4. R = 910 (S 3 - 4; S 6 - 1) , (S 1 - 5; S 2 - 1; S 5 - 5), U = 0,010,02 ( UG). I 0.
:
K = U / U ;
r = R 17 U /(UG - U );
r = {[ R 18(U '/ U "-1)]-1 1/R14}-1.
U ' U " , S 6 1 2.
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2
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2. .
. : (f < 1 ) (f >1 ). S 2 S 4 2, E I 0 = 2,0 - 6 .