anglicky v odborných předmětech "support of teaching technical subjects in english “
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Anglicky v odborných předmětech "Support of teaching technical subjects in English “. Tutorial : Mechanic - electrician Topic : Technical training II. class Passive components – coils Prepared by: Melichařík Lubomír. - PowerPoint PPT PresentationTRANSCRIPT
Snmek 1
Anglicky v odbornch pedmtech"Support of teaching technical subjects in EnglishTutorial: Mechanic - electrician
Topic: Technical training II. class Passive components coilsPrepared 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.CoilIs an electrical component used in electrical circuits:-to create a magnetic field electrical current-serves as an electromagnet-induce a variable magnetic field in an electric current-as an inductor (inductance bearer).
PASSIVE COMPONENTS COILS
Electrotechnical schematic symbol:
Schematic symbol of coils, inductance, chokes
Schematic symbol of coils, variable inductance,tuning coils
Schematic symbol of coils with a tap
Schematic symbol of coils with a magnetic core
Schematic symbol of coils with a ferrite coreCOIL
Construction of coils-consists of wire wound on an insulating supporting frame-winding can be single-layer or multi-layer-the wire-wound may be self-supporting no skeletons.-wire in the coil has to have the lowest resistivity, that the coil avoids large heat losses-most commonly used material is copper-to increase the magnetic properties insert a core inside the coilPRINCIPLE AND CHARACTERISTIC OF COILS
4Parameters of coils
-the basic unit to which the multiplier is applied is the inductance microhenry H.-the number of turns-geometric properties (number of turns per unit length, length, section content)-inductance expresses the magnitude of the magnetic flux in a unit of electric current-maximum load- the highest possible power output of a current friendly electrical coil-maximum current the largest current that can pass through the coil.PARAMETERS OF COILS
5Types of condensers air toroids, ferrite antenna, vf coils a others coilsTYPES OF COILS
6COIL SORTING AND CALCULATIONS
7Calculate the resulting inductance of the series connection of these coils.
Name the types of coilsActivities for students mandatory slideTask, test, questions .
Calculate the resulting inductance of the parallel connection of these coils.
Name the coils used in practice.
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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