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Audioförstärkare
Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University.
2008 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
Abstract [sv]

Examensarbetet som utförts vid Jönköpings tekniska högskola har syftet att konstruera en audioförstärkare. Målet var att åstadkomma goda prestanda på den valda audioförskartypen. Den utvalda varianten utvärderas med avseende på dess prestanda. Audioförstärkaren bör ha följande egenskaper: En kanal med en uteffekt på minst 40W samt ett frekvensområde på 20Hz till 20KHz, utan att använda sig av integrerade komponenter. Temat för rapporten bygger på analysering av konstruktionskretsen och en detaljerad beskrivning av ingående delar samt jämförelse med andra kopplingar med liknande funktion. Metoderna som har använts för att komma fram till resultatet är följande: Litteraturstudier av bl.a. [1],[3] och [6]. Den andra metoden var att testa konstruktionskretsscheman genom att koppla upp det på ett kopplingsdäck. Det som utfördes vid slutfasen var konstruktionen m h a CIRCAD och diverse simuleringar m h a Multisim. Efter genomgången av de olika momenten som arbetet medförde, gav insikten att det krävs mycket kunskap för att ha förståelse om hur en audioförstärkare fungerar. Denna studie gav inblick på de mest relevanta huvuddelarna som krävs för att kunna konstruera en audioförstärkare med önskade prestanda.

Abstract [en]

The thesis work performed at the School of Engineering at Jönköping University has the purpose to design an audio amplifier. The goal was to achieve great performance on the chosen audio amplify type. The chosen type is evaluated with respect to performance. The amplifier should be able to fulfil the following requirements: A one channel output being able to deliver at least 40W and a frequency range between 20Hz to 20 kHz without containing any integrated circuits. The theme in this report will be based on analysing the circuit used for the construction and describing the different surrounding parts in detail and compare it with other circuits with similar functionality. The methods applied before reaching the results are as follows: Literature studies, which among other literatures are [1], [3] and [6]. The other method was to ensure the function of the constructed circuit by connecting it on a breadboard for test verification. The performed tasks at the final phase were construction with the help of CIRCAD and various simulations with the help of Multisim, which has been utilized for developing the audio amplifier. After the exposition of the different moments, which the task has brought, it has given an insight that a huge demands of knowledge is required to have an understanding of how audio amplifier works. This study has given an insight on the main parts required to be able to construct an audio amplifier with the desired performance.

Place, publisher, year, edition, pages
2008. , p. 55
Keywords
Audioförstärkare, Gränsfrekvenser, Differentialförstärkare, Uteffekt, Klass B-steg, Kylning
Identifiers
URN: urn:nbn:se:hj:diva-6541OAI: oai:DiVA.org:hj-6541DiVA, id: diva2:37788
Presentation
, Jönköping (Swedish)
Uppsok
teknik
Supervisors
Examiners
Available from: 2008-10-27 Created: 2008-10-13 Last updated: 2008-10-28Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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