= 
, . 
.
, . : 
|
VT1 (), VT2
|
Ge
Si
R1
VT1 , VT2 ()
(*) (**)
R1:
-
|
VT1 , VT2 ()
VT3 - ()
VT(n+1)- ()
i = ni Þ 
i = 
i = 
i 
i=i - i
- ,
1. VT1 (n=0) => Ik0
2. n=1, Ik0,i1 
n , Ik0,i,,in 
n , 1 , .. .
1. VT1 - (), VT2
U1=U2=0.2 <U (.. )=0.6
U0=0.2
2. VT1 - , VT2 - ()
U2=U2=U1=0.7
U1=0.7 
- ( 1 0. 
1. VT1-(), VT2-
U1=U=0,2
U1= U+U2
U2= U1-U= 0.2-0.6= -0.4 < U VT2-
2. VT1 - , VT2 - ()
1 0.
.
.
- 1 
i = i - i
i = i = E/R
dQ/dt - dQ/t = i1
Q(t) = Q(¥) [Q(¥) - Q(0)]e-t/t
Q(0) = 0; Q(t) = i1t (1 - e-t/t)
i(t) = Q(t[R1])b / t = i1b (1 - e-t/t)
U = U = E - i(t) R
t0 - t1
t1 t2
Q = i1t
:
- t
- t
- t
|
|
|
I
I1
I2
max,
| t | t | t |
| I1 | I1 , I2 | I2 |
, .. I1 .
.
