القوانين اللي استخدمناها المسالة اللي فاتت
RTH = R1 || R2
ETH = R2 VCC / (R1 + R2)
IB = (ETH - VBE) / RTH + (β+1)RE
IC = β IB
VCE = VCC - IC RC - IE RE
RTH = R1 || R2
ETH = R2 VCC / (R1 + R2)
IB = (ETH - VBE) / RTH + (β+1)RE
IC = β IB
VCE = VCC - IC RC - IE RE
Voltage-divider Bias(approximate)
Anonymous Quiz
8%
β RE < 10R2
18%
β RE <= 10R2
18%
β RE > 10R2
57%
β RE >= 10R2
القوانين اللي استخدمناها
β RE >= 10R2
VB = R2 VCC / (R1 + R2)
VE = VB - VBE
ICQ = IE = VE / RE
VCEQ = VCC - IC(RC + RE)
β RE >= 10R2
VB = R2 VCC / (R1 + R2)
VE = VB - VBE
ICQ = IE = VE / RE
VCEQ = VCC - IC(RC + RE)
A BJT can be used as ... device in logic circuits to turn on or off current to a
load.
load.
Anonymous Quiz
87%
switch
13%
amplifier
As a switch, the transistor is normally in either cutoff (load is ...) or saturation (load
is ...).
is ...).
Anonymous Quiz
23%
on -off
77%
off - on