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Anglicky v odbornch pedmtech"Support of teaching technical subjects in EnglishTutorial: Mechanic - electrician

Topic: Technical training II. class Transistors 1Prepared by: Melichak Lubomr

Projekt Anglicky v odbornch pedmtech, CZ.1.07/1.3.09/04.0002je spolufinancovn Evropskm socilnm fondem a sttnm rozpotem esk republiky.TRANSISTOR

-is a semiconductor device, comprising of a pair of PN junctions.

-is the foundation of todays integrated circuits such as memory, processors, etc.TRANSISTORS 1

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

TRANSISTORS 1

TRANSISTOR

-semiconductor crossing transistor is a structure corresponding to the connection of two diodes in one device.

-every transistor has (at least) three electrodesTRANSISTORS 1

4BIPOLAR 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

TRANSISTORS 1

5Electrotechnical schematic symbol for the NPN transistor

A simplified model of an NPN transistorSymbolic representation of two semiconductor crossing transistor NPN diodes.

TRANSISTORS 1

6Electrotechnical schematic symbol for the PNP transistor

A simplified model of a PNP transistor

Symbolic representation of two semiconductor crossing transistor PNP diodes.

TRANSISTORS 1

71. 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 transistorsActivities for students mandatory slideTask, test, questions .

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.Activities for students mandatory slideTask, test, questions . Two slides are best.

Vclav MalinaPoznvme elektroniku I. Adrian Schommers Elektronika tajemstv zbaven. ISBN 3-92608-32-5

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