Page 22 - 電子學含實習
P. 22
Chapter 7 xږः̒ఙࣖཥ౺ (MOSFET) ׳ɽཥ༩
7-3 立即練習
1. νྡ (1) הͪʘཥ༩d߰ MOSFET ٙ g = 6mA / Vd፩̈ڜҤ Z މ 100Ωdۆ
m
o
R ߒމОkc(A) 500Ωc(B) 350Ωc(C) 250Ωc(D) 100Ωf
S
V DD
+V DD R 1
V i
+
C 1
V o R 2 C→∞ +
1MΩ V i R S R L V
R S - o -
Z o
ྡ (1) ྡ (2)
2. νྡ (2) הͪཥ༩dணӝཥڜਞᅰ r = 1.3MΩdʝኬਞᅰ g = 0.8 mA/Vd
m
d
v
R = 15kΩdR = 10kΩdۆཥᏀᄣू A = v 0 i ߒމОk
v
S
L
(A) 0.72c(B) 0.83c(C) 0.92c(D) 0.98f
3. νྡ (3) הͪཥ༩dMOSFET ʈЪཱིձਜdՉᔷཥኬ g = 0.5mA/Vdr ׁ
m
d
ଫʔࠇdۆՉཥݴᄣू i / i ߒމОkc(A) 60c(B) 81.7c(C) 166.6c(D) 250f
o
i
+V DD
+V DD
i i v D
V i i G
C C G
600kΩ V o S v o
C R G
6kΩ 6kΩ i o R S C S
Z o
ྡ (3) ྡ (4)
4. ν ྡ (4) הͪ ʘ ׳ ɽ ཥ ༩d ʊ ٝ MOSFET ʘ Ѱ ˟ ཥ Ꮐ V = – 2VdI DSS =
P
6 mAf߰ V = 9VdR =1.2MΩdR = 2kΩdۆϤཥ༩ʘʹݴ፩̈ڜҤ Z މ
G
S
o
DD
I
2 c(A)2kΩc(B) 1.2kΩc(C)0.6kΩc(D) 0.4kΩf
Оk K = DSS
V P
17