EE 331 - Devices and Circuit

EE 331 MOC

Diodes

Zener Diode

MATLAB 331 Refresher

CMOS Circuits

Bipolar Junction Transistors

Id=Is(eVdVt1)

Vr=VpVonRCT or Vr=VpVonfRC Where T is the period and f=1T

Rectifiers

Reduce Ripple Voltage

ΔT is the charging time of the capacitor or the diode conduction interval

ΔT=1ω2VrVp

ΔT=54Tt1

  1. TΔT
  2. RC(TΔT)
    Investigate further

V1=(VpVon)Vr=Von(t=t1)

Il(t)=Vo(t)R so Il(t)max=Vo(t)maxR

When RC is very large, Il,minIl,max
TRC0 when RCT

Semiconductors

Semiconductor Discussion

Silicon has 14 electrons in it's standard configuration, it's outer shell is the most critical. With 8 electrons on outer shell, Silicon is stable

Intrinsic Semiconductors

n=p=ni=BT32eEg2kt

n is number of electrons per cm3
p is number of holes per cm3
T is the temperature in Kelvin
B is the material property

For silicon, ni1.51010

Doped Semiconductors

N-Type
P-Type