p-n-p,
( ) , .
m
-
m= 0.005
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Uk Þ D Þ w ¯ Þ , .
- ( ).
rk = const = - Þ
:
r = r
r = r + r (1+b) ( )
r @ ( )
I1 I2
U1 U2
U1 = h11 I1 + h12 U2
I2 = h21 I1 + h22 U2
1. U2 = 0 Þ
2. I1 = 0 Þ ( m)
- .
- - .
h11 = r+ r (1-a) h11 = r+ r (1-b)
h22 = h22 =
h21 = a h22 = b
.
a b - , .
w , , b=1
w @wa
ta -
ta= ()
tb= ()
tp= (1+ )ta - .
.
1.
Cu: = 900 Tmin = -600
Si: T = 1500 min = -850
2. R = , .
:
1. U ;Uk<Uk
2. Ik ;Ik<I k
3. ; IkUk = Pk , Pk<Pk
.
n-p-n
:
R1, R2, R, Rk .
R . .
R, .
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= Xc = 1/wc << R
1, 2 , ( ). , .
R .
= φ = R = R1 êêR2