Electronics

electronics is a subrange of electro-technology, in which prefers elements with electrical control are used.

Mechanical components such as z. B. Switches or relays do not fall under the designation electronics. Important subranges of electronics are analog technique, digital technique and high-frequency engineering.

As electronic elements for example electron tubes, transistors, resistances, condensers and coils are used. From connection of these elements - in particular by their integration on a chip (monolithic circuit) - more complex resultFlip-flop, circuits, analogue-digital converter etc. integrated construction units such as multiplexer, operation amplifier .

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History

Electronics (grie. electron = amber): Beginning 20. Century the first vacuum tubes were developed and used in first circuits. With the triode for the first time an useful element was available for the setting up from amplifiers. Thusbecame possible inventions such as broadcast , television and radar. In the year 1948 the first transistor was then introduced. Transistors can be used like tubes as amplifier, controllable switches or as oscillator. However contrary to vacuum tubes, those very muchArea and river (exactly taken tension) need, can transistors very small be manufactured, because they are based on semiconductor technology. In the sixties then the manufacturing of complete circuits, consisting of several transistors and further elements, succeeded on only one Silicon crystal. The technology of the integrated circuits (IC ), introduced thereby, led since then to a constant miniaturization. Today the semiconductor electronics ranks among the most important branch in electronics.

analog electronics

Analog electronics or analog technique is occupied above allwith the processing of continuous signals. The most important circuit of analog technique is the amplifier, with its assistance further functions to construct leaves itself (oscillator, filter, etc.). The operation amplifier is an amplifier with a differential input (sum-and-difference amplifier). Its nametherefore it agitates that with it mathematical operations (subtraction, addition, integration, etc.) can be implemented. Operation amplifiers find broad application in analog electronics. Borders are set to the accuracy of signal processing in analog electronics by disturbing effects such as noise or Nichtlinearitäten.

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Digital electronics

digital electronics or digital technique concerns itself with the processing of discrete signals (expressed as numbers or logical values). With digital electronics the signals are digitized either before the processing by analogue-digital converters (in figures converted) or to existalready as digital signals. Transistors are usually used in digital technique as switches and not as amplifiers. The large advantage of digital electronics is in the fact that following the digitization with analog electronics mentioned disturbingEffects no more role play. During signal processing itself z can. B. the voltage levels within certain, given ranges change, without changing the appropriate digital signal. Digital technique attained far spreading particularly by the miniaturization advanced always further.Today can be realized on an integrated circuit a multiplicity of functions. See also digital technique.

high frequency electronics

High frequency electronics or high-frequency engineering predominantly concerns themselves with the production and/or. the receipt of radio signals. Uses of it are z. B. Broadcast, television, radar, remote control, wireless Telefonie, navigation. Wider fields of high frequency electronics are microwave engineering, cable-bound information transfer or ranges of medicine electronics. The transition from the low frequency technology to high frequency electronics is flowing.

elements

important elements are: Are offered to diode, transistor, resistance, condenser

, coil these elements in large type variety. Beyond that there is large variety at other elements, sees in addition the list of electronic construction units. In integrated circuits several are theseElements on a panel from semiconductor material (chip,) to a circuit combines. Such elements are manufactured by a hardly visible number of companies.

meaning of electronics

electronics covers today innumerable areas, from the semiconductor electronics overthe Quantenlektronik up to nano-electronics. Since the triumphant advance of the computer, which constant development of the information technology and increasing automation has itself the meaning of electronics steadily extended. Electronics takes today in our society a large value andno more is to be thought away from many ranges.

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Wiktionary: Electronics - word origin, synonyms and translations

resumption data

for leisuremoderately operated hobby electronics see electronics tinkering.

See also

literature

  • Horowitz, P., Hill, W., The kind OF Electronics, Cambridge University press, ISBN 0-521-37095-7
    translation:
  • Bohler, bald, Weigt, elements of electronics and its basic circuits, Stam publishing house, ISBN 3-8237-0214-9
  • Küpfmüller, K., Kohn, G., theoretical electro-technology and electronics, an introduction,Row: Springer text book, 16. , complete. again treatment. and. updated Aufl., 2005, XXI, 733 S. 372 fig., Softcover, ISBN 3-540-20792-9
  • Tietze, And, give, C.: Monolith technology. ISBN 3-540-42849-6
  • herring, Bressler, property art, electronics for engineers, Springer, Berlin, 2001, ISBN 3-540-41738-9
  • bill, Patrick, Electronics booklet, BoD GmbH, north first EDT, 2003, ISBN 3-8311-4590-3
  • Gossner, Stefan, Grundlagen of electronics, Shaker publishing house, Aachen, 3. Edition, 2003, ISBN 3-8265-8825-8
 

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