Transcript AVOP-ELEKTRO-MEL-008

Tutorial: Mechanic - electrician
Topic: Technical training
II. class
Transistors 1
Prepared by: Melichařík Lubomír
Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002
je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.
 TRANSISTOR


-is a semiconductor device,
comprising of a pair of PN junctions.
-is the foundation of today’s
integrated circuits such as memory,
processors, etc.
 TRANSISTOR


-basic properties of the transistor is
the ability to amplify small changes in
voltage or current.
-transistor effect was discovered and
the transistor invented on 16.12.1947
 TRANSISTOR


-semiconductor crossing transistor is
a structure corresponding to the
connection of two diodes in one
device.
-every transistor has (at least) three
electrodes
 BIPOLAR


TRANSISTOR
-has (at least) three electrodes, which
are designated as a collector, base
and emitter
-according to the arrangement used
of semiconductors type P or N we
distinguish two type, NPN and PNP

Electrotechnical schematic symbol for the NPN
transistor
A simplified model of an NPN transistor




Symbolic representation of two semiconductor
crossing transistor NPN diodes.


Electrotechnical schematic symbol for the PNP
transistor
A simplified model of a PNP transistor




Symbolic representation of two semiconductor
crossing transistor PNP diodes.
 1.
What is a transistor?
 2. What are the basic properties
of a transistor?
 3. When was the transistor
effect discovered?
 4. How many electrodes does a
transistor have?
 5. Name the basic types of
bipolar transistors




1. Draw the schematic symbol for the NPN
transistor and the simplified model.
2. Draw the symbolic representation of two
semiconductor crossing transistor NPN
diodes.
3. Draw the schematic symbol for the PNP
transistor and the simplified model.
4. Draw the symbolic representation of two
semiconductor crossing transistor PNP
diodes.


Václav Malina
Adrian Schommers
Poznáváme elektroniku I.
Elektronika tajemství zbavená.
ISBN 3-92608-32-5