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ELECTRONIC COMPONENTS :explode: (TRANSISTORS :!: (TYPES (NPN (Negative…
ELECTRONIC COMPONENTS
:explode:
TRANSISTORS
:!:
DEFINITION
made of semiconductor materials
basis of modern electronic
3 layers (+ and - charges)
USES
sound amplifier
switch
it can work as an open switch :unlock: if we do not have current in the base it won't work
TYPES
PNP
(
P
ositive
N
egative
P
ositive) . The arrow in pointing
IN
Difference
between PNP and NPN: The way the arrow is pointing
NPN
(
N
egative
P
ositive
N
egative) . The arrow is pointing
OUT
USEFUL TIP! :warning: NPN (not pointing in)
PARTS
EMITTER (E) emitts the flow of electrons (-)
COLLECTOR (C) collects the electrons
BASE (B) we need current here to make possible that the circuit can work (+)
INTEGRATED CIRCUITS
:!:
Semiconductor wafer
it has millions of tiny
resistors
capacitors
transistors
the keystone of modern electronics
in circuits it's used as the
:<3:
:silhouette: (brain)
RESISTORS
:!:
Potentiometer (variable resistor)
3-terminal resistor
with a sliding contact
that can work as a variable resistor
fixed resistance
L and R
variable resistance
R and C
L and C
commonly used to control electrical devices
resistors the depend on physical factors
NTC/PTC (temperature)
the resistance changes with the temperature
Types
NTC
the resistance
decreases
when the temperature
increases
:
PTC
the resistance
increases
when the temperature
increases
LDR (light)
the resistance changes with the intensity of light
Fixed resistor
regulates the flow of electrons
controls the sensitive components
CAPACITORS
:!:
Electrical device
stores energy :fire:
Used them in timer circuits
Value: capacitance
We use Farards (F) to measure them
DIODES
:!:
NORMAL DIODE
2 terminal ( :check: terminal- anode) ( :green_cross: terminal- cathode)
connected this way
The anode with the positive terminal of the battery. The cathode with the negative terminal of the battery
LED (Light Emitter Diode) :
special diode :star:
they convert electrical energy into light :explode:
