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Tutorial: Mechanic - electrician Topic: Technical training II. class Passive components – condenser 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.
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Condenser -passive electro technical component -used in electrical circuits for temporary storage of electrical charge – electric energy -the basic property for the evaluation of the condenser is its electrical capacity -technically the condenser is determined by the maximum allowed voltage, dielectric type and design of the terminals.
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Electrotechnical schematic symbol: Schematic symbol of the condenser-ceramic, rolls Schematic symbol of electrolytic condensers Schematic symbols of variable – tuning condenser Schematic symbol the adjustable condenser – capacitive trimmer
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The principle of a condenser -consists of two conductive plates (electrodes) separated by a dielectric -on each of the plates is fed electric charges of opposite polarity Basic properties of a condenser -capacity -maximum allowed voltage -quality factor -other properties such as price, weight, durability, thermal stability, shape…
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Capacity of a condenser Capacity depends on the area of the plates, the mutual distance between the plates themselves and the dielectric permittivity between the plates (applies to the plate condenser): The plate condenser with a capacitance C can store and electric charge: Q = CU ( Charge × Voltage) Q = It (Current × Time) The unit of capacity is the farad in the system SI is:
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Symbols for condensers: -for colour coded electronic components we use the international code EIA-RS-279, and the type of condenser should also be considered to determine the values and tolerances to identify performance, the maximum voltage, and for ceramic condensers the thermal parameters. Types of condenser Electrolytic axial electrolytic radial large value electrolytic Roll condensers capacitive trimmers tuning condenser
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Calculate the resulting capacity of these series ordered condensers. Name the types of condensers.
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Calculate the resulting capacity of these parallel ordered condensers.
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Václav MalinaPoznáváme elektroniku I. Adrian Schommers Elektronika tajemství zbavená. ISBN 3-92608-32-5
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