AnCXT_met_20160526

14.

TL082.

2.,

, (

) .

.

RC- .

,

,

). U U :

(135)U = KU U + U )

KU — ; – ,

. (135)

		c :
(136)	=

KU , c

c , KU.

.

KU , KU .

KU > 1 ,

.

12

, , ,

. , , ,

, ,

,

, .

,

= 0

.

. 105).

— 111 —

. 105.

. ,				.
,			2,
						, ,
:

. 106.

,

,

U1 U2, .

I, ( ) U1 = U ( .

. 105 . 106), :
		(137)				,
«||» -					.
				= ||( )
			Z||(R + Z) =
,			=	), (137)
	(138)				) .
				) =

I , I1 I2 ( . . 106).

,

. I R1 R2,

, ,

—112 —

			.
		. I1 I2. R2
=

						. 107.
.		106				c (138)
	(139)												)																																				.
I2																					:
											=
												U2 U1
,																																		I2,																										R,
				(140)																																								.
. :																																																												2
							U
						(141)			= 1																		.
U1. ,																					=
																																															2
																Z :
									(142)				=						.
				,																																																							=
																							.																										.												.
,
,																																																								.
(142):
								(143)																		.
											(					)			=
(8) (9),																					.
(143),
						,
																																										= .
:							(144)												.
			(					,																(
	(145)																																																				.
						) =																					)
,										(				) =																							:

. 108.

— 113 —

K(f)							(f)
						15
1						10
0.875						5											f / f0
0.75						0
						-5	0.01		0.1			1		10			100
0.625
					-10
0.5				f / f0
	0.1	1	10		-15
0.01				100
	. 108.
						=		=
,
			,								.					-

( ), . .

: K = 2/3,

. , ,

R1 R2 ( . . 105), c

, 2/3 U ,

f0. ,

, .

.

, RC- ( . 109).

2,

(33), = 0 1/3:

[

=

.

( ) =

]

=

(146)

[

=

] = 0.

( )

, (32),

=

0

:

, . -

( , f0). ,

R1 R2 f0,

.

, .

. 109. ( ) RC- ( )

— 114 —

1.. 110

, U1

– 2-3 , – , – 0.1 f0 10 f0).

.

. 110.

R = 17,

.

17.

	R,	,	f0,	.7
1	1	1
2	2.2	0.1
3	4.7	0.1
4	10	0.01
5	15	0.01
6	1	1		2- . RC
7	2.2	0.1		2- . RC
8	4.7	0.1		2- . RC
9	10	0.01		2- . RC
10	15	0.01		2- . RC

2.3, 2,

RC- ».

, .

.

3.-

( . . 111). 4.7 ,

R2 4.7 .

4.(+/- 10 ) .

R1,

.

, .

5..

— 115 —

. 111.

6., R1

.

= R1 / (R1 + R2) ( )

2/3 (

).

7..

. 112. ( )

RC- ( )

,

17.

R1 R2 ,

( 4.7 , – 15 ).

8. . 4-6 .

R1-R2,

, , . 112

. 111.

,

( ), .

( . ) f0 2/3,

, 1/3. ,

= R1 / (R1 + R2) = 1/3.

— 116 —

( ) ( ) .

2.TL082 LM393 +/- 10 .

3.,

.

4..

15.2.

– ,

( ,

), .

. ( ),

.

–

( )

. .

. 113.

U

U

==

U ,

U

t

t

t

U U

t

. 113.

, U

, , , . U ,

, ,

U . U

. ,

.

, ,

.

,

,
		(147)			,
						:
t –			=		=		=		=									= 0
	( ,
, ,					+U ), T –
( ),																	–
.

f = 1 / T .

— 117 —

+U

–U ,

, U .

0.7RC, ,

U .

.

. ,

U , (

).

.

, – ,

, , .

–

. , ,

– .

« » ,

. U

U , (U – U )

( , ), , (U – U ) I .

.

. t , .

( , U ),

, , ,

. t , .

( , ), ,

. .

,

.

95-96% .

, , RC (

) LC- ( ). LC

,

. ( ,

) ,

.

.

, , ,

, ,

, ,

, (

D). « ».

,

,

.

, . -

, – ,

( ).

—118 —

.								,
–	,
,				.				.
,
.
. 114, .
	U
I	+U											t
	–U
	U										2Um
	+Um
	–Um											t
						t		t

. 114. ( ) ( )

, ,

+U .

, C

», ,

.

, , « »

, ,

R U . R

I I = U / R. ,

C, .

I,

:

(148) ,

UC , I t.

, ,

, . , , U

–Um,

–U . (148) ,

.

+U , U

+Um,								.
(149)					,		.
|+U | = |–U |, |+Um | = |–Um |,			(148)					:

, ,

2 Um,

, ,

. , ,

— 119 —

(150)T = 2 = 2 = 4 .

,

+U +Um,–U –Um. 12

, :

. 115.

, ,

U 1,2.

U 1,2				= U / 2. (150)
				.
Um = U 1,2, U = U , :
	(126) = ,
		= 2
	(151)		= 4
				,

(121)

=

(152) .

,

. , ,

,

, RC , .

.

, , 1%

(R3 = 100 R4), . 116. R3 R4 , .

— 120 —