. 3.3

 

 

 

3.



3.1 P . , VT1 P 2.2 , :

P P 160

P = ¾¾¾ ¾¾¾ = ¾¾¾¾ = 3.2

bvt3+1 b 50


3.2 Ivt3 VT3. 󠠠 Ivt3 Ivt1 :


Ivt3 Ivt1 52

Ivt3 = ¾¾¾ ¾¾¾ = ¾¾¾ 1

1+bvt3 bvt3 50

 

 

3.3 VT3 Uvt3 (. . 3.4 ). Uvt3 = 0.6 , U :

U = U + Uvt1 + Uvt1 = (6.32 + 1.2 + 0.6) = 8







3.4

 

3.4 R :

 

U 8

R = ¾¾¾ = ¾¾¾ = 8

Ivt3 1



R ³ R min

 

R min = 1 ( Ӡ 1406).



4. .

 

+0.6 , - 0.6 . , , , . -223 (VD1-VD2, . ), U = 0.6

R1= R2= R . I, :


I ³ 10*Ivt3

 

I = 3


U(15 0.6)

R = ¾¾¾¾ = ¾¾¾¾¾¾ = 4.8 5

I3

 

 

 

 

5.

 

() . R1 R2 (. . 6 ).

1406 Ku1 3*104 . :


Ku = Ku1 * Ku2 = 9*108


, Ku :


U 񠠠 u ( Ku1 * Ku2 * Ku) 1

Ku = ¾¾¾ = ¾¾¾¾ = ¾¾¾¾¾¾¾¾¾¾¾ ¾

E1 + cKu 1 + c( Ku1 * Ku2 * Ku) c

 

. 3.5

, (. . 3.5 ) ( , ). R º R = 8 ; U = U = 8 , = 15   ( ).

 

U 񠠠 8000

Ku = ¾¾¾ = ¾¾¾¾ = 5333

E1.5

1

¾ = Ku = 5333

c


R1 R2 , . c R1 R2 :


R1

c = ¾¾¾

R1 + R2

 

R1 = 0.1 . :


1 R1 1

¾¾ = ¾¾¾ = ¾¾¾ Þ 5333 = 1 + 10R2 Þ R2 = 540

Ku R1 + R2 5333

 

6.

 

򠠠 ( ) . , 3 , .. :

__

= = Ö 2 (3 )

 

() t :

_________________

= Ö 1 + ( 1 / ( 2pt ))2

t R :

t = * R

 

( 2) :


= 1 * 2

() , , . :


= 1 * 2 * *

 

1 , 2 , , - , . Ku , ( 1 = 2 = 1).

:

_________

= 1 + ( Ö 1+ ( /b) - 1)(1 - Kuo)

b - . , t :

__________________

= Ö 1 + ( 1 / ( 2pt ))2

 

 

t = * (R | | R)

 

 

( ) . , , . , . , .

, .

 

 

 

 

/

-

1

R1

-0.5 - 0.1 10 %

1

2

R2

-0.5 - 540 10 %

1

3

R

-0.5 - 5 10 %

2

4

VD1-VD2

223

2

5

VT1

817

1

6

VT2

816

1

7

VT3

315

1

8

VT4

361

1

9

DA1-DA2

1406

2

 

 








1.   . . , .. - ࠠ

- : , 1990 .


2.   . . , .. - .

- : , 1985 .

3.   .. - :

- : , 1985 .


: 1, 2, 3