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ELECTRONICS WORKBENCH
230201
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32.97
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. , . - . . : Micro-Cap V, DesignLab, Aplac 7.0, System View 1.9, Electronics Worcbench, CircuitMarker 6.0.
Electronics Worcben (EWB) . :
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1. p-n .
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3. .
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p-n - . () . , 1.1, .
. 1.1 -
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I = ( - Unp)/R (1.1)
I - , - , Unp - . 1.1,
I = ( - Uo)/R (1.2)
I - , Uo - . - . 1.2 . , 1.1, 1.2. - , , .
. 1.2
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, , . , , 1.3, n .
. 1.3
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Vs. 1.4.
. 1.4
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, - . R2 (I=U/R=U/I=U), . /, , ( ), , ( ) - . .
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R2. - , , . - , . U/I, , . ( , ). ( ) dU/dI. , .
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- . 1.5.
| . 1.5 |
. : - , ; - , = f (Uo6p) ( = 2 - 20). . , . .
, 1. 6.
. 1.6
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1.1 . Unp . , Uo .. (1.1) (1.2). " "
2.
1.2 . Inp . . I . " ".
3.
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4.
) . 1.3 . 5 , 4 , 3 , 2 , 1 , 0.5 , Unp Inp ) " ".
) . . , 5 , 10 , 15 . 1 Uo6 ) " ".
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) Inp=F(Unp) Io6=F(Uo6).
) Inp = 4 . Inp = 0.4 Inp =0.2 . " ".
) ) 5 " ".
) Inp = 4 R= Unp/Inp, " ".
) . " ". , , , .
5. .
1.4 . , ( ), - ( , 1 1 ). . " " .
6. .
1.6. Uc U0, (1.3) Uc. Ci = f(Uc). Ui - , U0 - , .
Ci = C0(Ui/U0-1) (1.3)
, , 0,707 , 0,578 - , 1 - .
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R, I=4
R, I=0,4
R, I=0,2
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R, U= 5
) R I=4 R=
) , : U= 5. . .
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, , U = 6. . .
i = f(Uc)
| Uc | Uo, | Ci, pF |
1. ? , , .
2. ? ?
3. p-n ? , .
4. p-n ? .
5. . p-n ?
6. p-n ? ? ?
7. p-n-? p-n- , p-n- .
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. 2.1
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, . U2 Ui .
U2 Ud. Ud . .
( 2.2).
. 2.2
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, Ux = Um Sin ωt. 0< t >T/2 D1 , , , ( 2.3). T/2<t > T DI , . Ux = Um Sin ωt , Ud=Um/ .
2.3-
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2.3, , , . , . ( 2.4).
2.4 -
, Ud=2Um/ .
2.5.
2.5 - 
| T |
f , f =1/. , .
. Umax U2m Unp: Umax = U2m - Unp. 2.6.
2.6 -
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Ud ( ) :
Ud=2Um / π
U2m :
U2m= U1m(n2/n1)= U1m/20
U1m - .
Umax U2m. f : f=1/T, .
