Transcript Document

Model 1
V = 0
Model 2
V
Model 3
V and rf
AC Analysis
Forward Biased
At 300K VT = 0.026 V
Thermal equilibrium,
depletion region
Reverse Biased
Group 5
Materials
CHAPTER 2
Semiconductor:
Group 4 eg.
Silicon and
Germanium
Bandgap
Energy
Calculate
rd = VT / ID
PN junction
N-type
Insulator
Conductor
Semiconductor
Must perform
DC Analysis
first to get DC
diode current,
ID
P-type
Group 3
Extrinsic
photodiode
Intrinsic
Other
types of
diode
Solar cells
LED
Zener Diode
Clipper
Standard
Clipper
The two steps: Find
clip value and set the
conditions
Clipper in
Series
Similar to half wave –
knowing which cycle
the diode will turn on
The two steps: Find
the value that the
capacitor is charged
to and KVL to find
equation of Vo
Clamper
Multiple Diode
Circuit
IZmax
Voltage
Regulator
Zener Diode
The load resistor
sees a constant
voltage
regardless of the
current
Vo = Vs - V
PIV = 2Vspeak - V
Vo = Vs - 2V
Centertapped
Duty
Cycle
Bridge
PIV = Vspeak - V
Full Wave
Vo = Vs - V
CHAPTER 3
Rectifier
Half Wave
PIV = Vspeak
Derive input load
line, IB versus VBE
Formulas
KVL at BE
Loop
DC Analysis
npn
Derive output load
line, IC versus VCE
KVL at CE
Loop
pnp
Bipolar Junction
Transistor
Cutoff
Mode of operation
CHAPTER 4
Active
Saturation
What
happened
to each
junctions?