( LF411 0,2 ; - ); 2:
.
: 1 , . . ( 2.) "" , ( ).
.86. .
.
, .
. 3. , :
1. B , , I, A .
2. , : ) R2 U, ) R1 U.
3. II, U/R2 = -U/R1, = U/U = R2/R1. , B , . .
.
, . , . , ( 6.2), .
VOUT= - Rs/R1
6.2
2.13. (R1, R2 Rn). , . , ( ), , , . ,
Is=Il+I2+...+In I1=U1/R1,I2=U2/R2,..., In=Un/Rn.
, Uo=Is Rs.
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Uo= - Rs(U1/R1 + U2/R2 + U/Rn).
6.3 VOUT(X1)= U1 0.5 U2
:
1. .. ( 1).
2.
2.1. Micro Cap, ( 6.4). (V3 V4) :
- 1
- 1
- 0,5
- 0
6.4
2.2. (R2, R5) ( ) 6.1.
6.1 -
. | . | . | ||||||
VOUT=U1+U2 | 1 (-0.7) | VOUT=1.1*U1+2*U2 | 4 (-4) | VOUT=0.75*U1+2*U2 | 1.8 (-2) | |||
VOUT=-U1-0,8*U2 | 1.5 (-0.1) | VOUT=-2*U1-0,8*U2 | 4.2 (-4.1) | VOUT=-0,25*U1-0,12*U2 | 2 (-2.3) | |||
VOUT=-0,5*U1-0,2*U2 | 1.6 (-0.5) | VOUT=-1,5*U1-0,4*U2 | 4.4 (-3.8) | VOUT=-1,31*U1-0,24*U2 | 2.2 (-2.5) | |||
VOUT=-2*U1-1.5*U2 | 1.8 (-2) | VOUT=-1.2*U1-0.5*U2 | 4.5 (-0.4) | VOUT=-1.01*U1-0.4*U2 | 2.4 (-2.8) | |||
VOUT=-1.5*U1-1.2*U2 | 2 (-2.3) | VOUT=-0.5*U1-3.2*U2 | 5 (-0.2) | VOUT=-0.4*U1-1.22*U2 | 2.7 (-3.4) | |||
VOUT=-1.7*U1-0.55*U2 | 2.2 (-2.5) | VOUT=-0.7*U1-0.33*U2 | 3 (-3) | |||||
VOUT=-1.1*U1-U2 | 2.4 (-2.8) | VOUT=-0.31*U1-U2 | 3.2 (-3.2) | |||||
VOUT=-2.2*U1-U2 | 2.5 (-3.2) | VOUT=-0.22*U1-U2 | 3.4 (-3.4) | |||||
VOUT=-U1-1.3*U2 | 2.7 (-3.4) | VOUT=-U1-0.77*U2 | 3.8 (-3.8) | |||||
VOUT=-2.1*U1-U2 | 3 (-3.6) | VOUT=-0.15*U1-U2 | 4.9 (-4.9) |
2.3.
2.4. (Alt + 1)
2.5. .
( 2.3) .
MICROCAP. (U1, U2) U1 f=1, U.=1. U2 f=2, U.=1
, (Transient ALT+1) , : 1 , 1 3 (U1, U2, VOUT(X1)). (VOUT(X1) X1 (V3,V4 = 15).
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-1 .
:
;
, (U1, U2) VOUT(X1));
;
.