Theory : Electronics
Lecture 1 :
Difference between electric and electronic engineering.
↳ "Electronics comprises the physics and
engineering that deal with the flow of
electrons in vacum , gas ,
and semiconductors .
"
Electrical passive effect components (such resistances,
↳ engineering uses as
capacitances and inductances /
Electronic devices (such transistors) to control electron
↳ engineering uses active as
flow
by amplification and rectification .
Active components - Battery ,
Generator ,
Transistor
Passive components - Resistor ,
Capacitor ,
Inductor ,
Diode
Diodes Direction of current flow I
Use semi-conductor materials Anode Cathode
(+ ) G)
↳ def : a diode is a two-terminal electronic component that
only conducts current in de direction
↳ an ideal diade will have O resistance in one direction ,
and infinite resistance in the reverse direction .
(Direction of current flow does not matter (
Capacitors -
use non-conductive materials Anode Cathode
(t) ()
~
air ,
or
paper ,
or plastic ,
...
↳ def : a capacitor is a two-terminal electric comparent that never conducts curent
.
↳ positive charges accumulate on the surface of the anode.
Resistors -
use conductive (but resistive) materials (Direction of current flow does not matter (
Anode Cathode
(t) ()
, Direction of current flow I REVERSE-open circuit
Diodes-use semi-conductive materials Anode PN Cathode
(t) ()
Direction of current flow I FORWARD -
short circuit
Anode PN Cathode
(t) ()
Transistors
Active dependent source of current
PNP 3 Emitter
Base
A
Collector
les
2
Emitter PNP
Base ()
(+ )
concton Emitter 1 collector
A
Ideal diode as a non-linear coriented) circuit element - actual diode
ideal
diode
-
- i(t) = (eu(t) -
1)
-
1 1. . 17
forward
current
M
Real current flow intensity depending on
voltage tension > forward
voltage
Puzzle with diodes
games
which
lamps are
bright ?
De
-
Exercises p . 24 (ex 2 .
5)
Lecture 1 :
Difference between electric and electronic engineering.
↳ "Electronics comprises the physics and
engineering that deal with the flow of
electrons in vacum , gas ,
and semiconductors .
"
Electrical passive effect components (such resistances,
↳ engineering uses as
capacitances and inductances /
Electronic devices (such transistors) to control electron
↳ engineering uses active as
flow
by amplification and rectification .
Active components - Battery ,
Generator ,
Transistor
Passive components - Resistor ,
Capacitor ,
Inductor ,
Diode
Diodes Direction of current flow I
Use semi-conductor materials Anode Cathode
(+ ) G)
↳ def : a diode is a two-terminal electronic component that
only conducts current in de direction
↳ an ideal diade will have O resistance in one direction ,
and infinite resistance in the reverse direction .
(Direction of current flow does not matter (
Capacitors -
use non-conductive materials Anode Cathode
(t) ()
~
air ,
or
paper ,
or plastic ,
...
↳ def : a capacitor is a two-terminal electric comparent that never conducts curent
.
↳ positive charges accumulate on the surface of the anode.
Resistors -
use conductive (but resistive) materials (Direction of current flow does not matter (
Anode Cathode
(t) ()
, Direction of current flow I REVERSE-open circuit
Diodes-use semi-conductive materials Anode PN Cathode
(t) ()
Direction of current flow I FORWARD -
short circuit
Anode PN Cathode
(t) ()
Transistors
Active dependent source of current
PNP 3 Emitter
Base
A
Collector
les
2
Emitter PNP
Base ()
(+ )
concton Emitter 1 collector
A
Ideal diode as a non-linear coriented) circuit element - actual diode
ideal
diode
-
- i(t) = (eu(t) -
1)
-
1 1. . 17
forward
current
M
Real current flow intensity depending on
voltage tension > forward
voltage
Puzzle with diodes
games
which
lamps are
bright ?
De
-
Exercises p . 24 (ex 2 .
5)
