Tutorial: Mechanic - electrician Topic: Technical training II. class Passive components – coils...
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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 Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.
Tutorial: Mechanic - electrician Topic: Technical training II. class Passive components – coils Prepared by: Melichařík Lubomír Projekt Anglicky v odborných
Tutorial: Mechanic - electrician Topic: Technical training II.
class Passive components coils Prepared by: Melichak Lubomr Projekt
Anglicky v odbornch pedmtech, CZ.1.07/1.3.09/04.0002 je
spolufinancovn Evropskm socilnm fondem a sttnm rozpotem esk
republiky.
Slide 3
Coil Is 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).
Slide 4
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 core
Slide 5
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 coil
Slide 6
Parameters 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.
Slide 7
Types of condensers air toroids, ferrite antenna, vf coils a
others coils
Slide 8
Slide 9
Calculate the resulting inductance of the series connection of
these coils. Name the types of coils
Slide 10
Calculate the resulting inductance of the parallel connection
of these coils. Name the coils used in practice.
Slide 11
Vclav MalinaPoznvme elektroniku I. Adrian Schommers Elektronika
tajemstv zbaven. ISBN 3-92608-32-5
