1. Д (0-250 ).
3.1.1.
U () | 1 | 1+2 | 1+2+3 | |||
1 (mA) | U1 (B) | I2 (mA) | U2 (B) | I3 (mA) | U3 (B) | |
2. dz . 3.1.5.
3. U, - . .
4. : = f(U).
5. .
1. ?
2. n- .
3. .
4. .
5. .
6. .
2
: , .
: , , , , .
ϳ , 㳿 . , , .
ϳ ( ). , ᒺ:
1) ;
.3.2.1. p-n- () ().
.3.2.2. n-p-n () ().
2) ;
3) , .
, , ᒺ.
. , . ̳ p-n . p-n- (.3.2.1) n-p-n (.3.2.2).
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. , , . p-n- (.3.2.1). . p-n , () U . p-n , () U . , .
.3.2.3, .3.2.4. .
. 3.2.5. .
, , .
:
1. : = f(U) U = const (. 3.2.3).
2. : = f(U) = const (.3.2.4).
n-p-n , , .3.2.5.
U .3.2.6.
, R: . (.3.2.6 ) . . . .
. 3.2.6. .
ij R1 R2 () . U , : U = U + U , ¹ 0.
. 3.2.6. , U, (.3.2.6 ), (.6 ). t . 6 , t . 6 .
.3.2.7 , . 3.2.5.
U (.3.2.7 ) U (. 3.2.7 ), U = U + U (. 3.2.7 ), R UR = × R (..3.2.7 ). R , , U (. 3.2.5). R U (U + UR = ), UR U . (. 3.2.7 ) UR, U:
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D U = - DUR = -D×R.
, , :
. (3.2.1)
.3.2.7. .
, b , , R , R :
, (3.2.2)
ϳ b, R , R, . ( 璺) :
. = 1×2×3...×n. (3.2.3)
ϳ , . , , : () ().
, (.3.2.8). 3.2.8 , = f(t) (.3.2.8 ) U = f(t) (.3.2.8 ) U = f(t) (.3.2.8 ). , U, U. U U = f(U) (n = const). .3.2.9 , U.
. - , , ( ). -. , , U(t) U(t). .
.3.2.8. .
.3.2.9. .
.3.2.10. .
, . , , .
: = f(n) U = const.
, , (. 3.2.10).
n1<n<n2, max :
. (3.2.3)
, .