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ELECTRONIC COMPONENTS (ACTIVE) - Coggle Diagram
ELECTRONIC COMPONENTS (ACTIVE)
Semi-Conductors
N-Type
1) Doped with
pentavalent
atoms, 2)
Electrons
-
major
charge carriers, 3)
Holes
-
minor
charge carriers, 4)
Give
electrons
P-Type
1) Doped with
trivalent
atoms, 2)
Holes
-
major
charge carriers, 3)
Electrons
-
minor
charge carriers, 4)
Accept
electrons
Diodes
P-N Diode
Barrier
Potential
N-Type: Lose e⁻, P-type Gain e⁻ → Opposition →
Depletion Region
Forward
Bias
Anode: +ve terminal, Cathode: -ve terminal, Diode: closed switch →
Maximum current
Reverse
Bias
P-Type: anode, N-Type: cathode →
No movement
of charge carriers
Zener Diode
Stable
voltage,
reverse bias
LED
L
ight-
E
mitting-
D
iode | 1)
Forward bias
, 2)
Emits light
while conducting 3)
Light intensity depends on current
Photo-Diode
1)
Reverse bias
, 2)
Conducts - light incident
3)
Current depends on light intensity
Transistors (2 P-N junctions, FR bias)
Terminals
Emitter
(emits e⁻)
IE ≈ IC
|
IE = IB + IC
|
α = IC/IE
|
β = IC/IB
|
α = β/(1+β)
|
IC = β*IB
Base
(controls flow)
Collector