About: Wien bridge oscillator

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A Wien bridge oscillator is a type of electronic oscillator that generates sine waves. It can generate a large range of frequencies. The oscillator is based on a bridge circuit originally developed by Max Wien in 1891 for the measurement of impedances.The bridge comprises four resistors and two capacitors. The oscillator can also be viewed as a positive gain amplifier combined with a bandpass filter that provides positive feedback. Automatic gain control, intentional non-linearity and incidental non-linearity limit the output amplitude in various implementations of the oscillator.

Attributes	Values
rdf:type	yago:WikicatAnalogCircuits yago:WikicatOscillators yago:Artifact100021939 yago:Circuit103033362 yago:Device103183080 yago:ElectricalDevice103269401 yago:ElectronicDevice103277771 yago:Generator103434285 yago:Instrumentality103575240 yago:Object100002684 yago:Oscillator103857430 yago:PhysicalEntity100001930 yago:Whole100003553
rdfs:label	Oscil·lador de pont de Wien (ca) Oscilátor s Wienovým článkem (cs) Oscilador de puente de Wien (es) Oscillatore a ponte di Wien (it) Wien bridge oscillator (en) Генератор с мостом Вина (ru) 文氏电桥 (zh)
rdfs:comment	Un oscilador de puente de Wien es un oscilador electrónico que genera ondas sinusoidales, mediante un amplificador realimentado por un puente compuesto de cuatro resistencias y dos condensadores, originalmente desarrollado por el físico alemán Max Wien en 1891, para la medición de impedancias. (es) L'oscillatore a ponte di Wien è un filtro notch concepito da Max Wien nel 1891 e cioè prima dell'invenzione del triodo con cui realizzare gli amplificatori elettronici, sfruttando il principio della retroazione positiva questo oscillatore è in grado di generare un'onda sinusoidale innescata da un rumore termico. Tra i generatori di forme d'onda, l'oscillatore a ponte di Wien è uno dei più conosciuti. (it) 文氏电桥（英語：Wien bridge oscillator）也称为桥式正弦波振荡电路，是利用電阻與電容作為迴授的一种电桥型振盪器，工作頻率可達約幾MHz左右。將輸出接至一電阻（）與電容（）串聯之電抗（）串接一電阻（）與電容（）並聯之電抗（），再將之電壓回授至輸入端，此方式稱為韋恩橋式震盪器或韋恩橋式震盪電路。迴授電路如下：利用，震盪時虛部為零，增益為1。故虛部之；回路增益若；增益必須為始可滿足振盪之要求。 (zh) En electrònica un oscil·lador de pont de Wien és un tipus d'oscil·lador que genera ones sinusoidals sense necessitat de cap senyal d'entrada. Pot generar un ampli rang de freqüència. El pont està compost de quatre resistències i dos condensadors. El circuit està basat en un pont originalment desenvolupat per el 1891. El circuit modern està derivat de la tesi final de William Hewlett, per obtenir el màster a la Universitat de Stanford. Hewlett, juntament amb David Packard van fundar l'empresa Hewlett-Packard. El seu primer producte va ser l'HP 200A, un oscil·lador d'ones sinusoidals de precisió basat en el pont de Wien. El 200A es va convertir en un instrument electrònic clàssic conegut per la seva baixa distorsió. (ca) Oscilátor s Wienovým článkem (anglicky Wien bridge oscillator) je typ elektronického oscilátoru, který generuje sinusové (harmonické) vlny. Může generovat široký rozsah frekvencí. Oscilátor využívá , které původně vyvinul Max Wien v roce 1891 pro měření impedance.Můstek sestává ze čtyř rezistorů a dvou kondenzátorů. Oscilátor může být také považován za zesilovač s kladným ziskem kombinovaný s pásmovou propustí, která vytváří kladnou zpětnou vazbu. Výstupní amplituda je v různých implementacích oscilátoru omezována automatickým řízením zisku a úmyslnými i nežádoucími nelinearitami. (cs) A Wien bridge oscillator is a type of electronic oscillator that generates sine waves. It can generate a large range of frequencies. The oscillator is based on a bridge circuit originally developed by Max Wien in 1891 for the measurement of impedances.The bridge comprises four resistors and two capacitors. The oscillator can also be viewed as a positive gain amplifier combined with a bandpass filter that provides positive feedback. Automatic gain control, intentional non-linearity and incidental non-linearity limit the output amplitude in various implementations of the oscillator. (en) Генера́тор с мосто́м Ви́на — разновидность электронных генераторов синусоидальных колебаний. Частотно-задающая часть этого генератора выполнена на ёмкостно-резистивном полосовом фильтре, впервые предложенном Максом Вином в 1891 году для измерения импедансов электрических цепей, и теперь называемом мостом Вина. (ru)
foaf:depiction
dcterms:subject	Electronic oscillators Analog circuits Electronic test equipment
Wikipage page ID	1531173 (xsd:integer)
Wikipage revision ID	1088943684 (xsd:integer)
Link from a Wikipage to another Wikipage	Capacitor Amplitude modulation Electronic oscillator Bill Hewlett David Packard Annalen der Physik Vacuum tube Photocell Max Wien Electrical impedance Electrical resistivity and conductivity Frederick Terman Frequencies Stanford University Clipping (signal processing) Microphonics Bandpass filter Electronic oscillators Analog circuits Wheatstone bridge Distortion Gain (electronics) James Kilton Clapp Barkhausen stability criterion Bridge circuit Diode Positive feedback Resistor Transient response HP200A Harold Stephen Black Hewlett-Packard Taylor series Electronic test equipment Hermon Hosmer Scott Incandescent bulb Negative feedback Op-amp Loop gain Sine wave Wien bridge Thermistor Phase margin Squegging Bill Hewlett Field effect transistor
Link from a Wikipage to an external page	http://www.cirvirlab.com/simulation/op_amp_wien_bridge_oscillator_online.php https://archive.org/details/analogelectronic0000hami https://archive.org/details/bstj13-1-1%7Cdoi=10.1002/j.1538-7305.1934.tb00652.x https://archive.org/details/bstj17-4-574 http://www.radiomuseum.org/forum/single_pentode_wien_bridge_oscillator.html http://www.alcatel-lucent.com/bstj/vol07-1928/articles/bstj7-3-420.pdf http://www.hp.com/hpinfo/abouthp/histnfacts/museum/earlyinstruments/0002/0002history.html http://www.hp.com/hpinfo/abouthp/histnfacts/museum/earlyinstruments/0002/index.html http://www.smecc.org/hewlett-packard,_the_early_years.htm http://www.ecircuitcenter.com/Circuits/opwien/opwien.htm http://www.hparchive.com/Manuals/HP-200-IRE-Article.pdf http://www.cliftonlaboratories.com/Bill%20Hewlett%20and%20his%20Magic%20Lamp.htm

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