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PWM Effekt Audioförstärkare
Linköping University, Department of Electrical Engineering.
Linköping University, Department of Electrical Engineering.
2004 (Swedish)Independent thesis Basic level (professional degree)Student thesisAlternative title
PWM Power Audio Amplifier (English)
Abstract [en]

The purpose with the report is to show that it is possible to design a class-D amplifier, using a programmable FPGA mounted on a developing card from Xess and a H-bridge. The FPGA was programmed in VHDL which is the language the software from Xilinx use to implement a logical function into the FPGA The logical function corresponds to a modeling of the music signal and the modeling can be described as a comparator which compare the music signal with a triangle wave and as a out signal produce a pulse width modulated (PWM) signal. The report is also a review and evaluating of two different modulating technologies, AD- modeling and BD-modeling. A detailed part about how the H-bridge was designed and how it works. The result of this project is a working audio amplifier to a significant lower price than the products in todays market.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2004.
Series
LiTH-ISY-Ex-ET, 285
Keyword [en]
Electronics, Power amplifier, Klass-D förstärkare, Effektförstärkare, PWM-audio amplifier
Keyword [sv]
Elektronik
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-2637OAI: oai:DiVA.org:liu-2637DiVA: diva2:19973
Uppsok
teknik
Available from: 2004-12-20 Created: 2004-12-20

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf