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A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier
Thesis (PhD (Electrical and Electronic Engineering))--University of Stellenbosch, 2009.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2009
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| _version_ | 1867614003237224448 |
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| access_status_str | Open Access |
| author | Koeslag, Francois |
| author2 | Mouton, H. du T. |
| author_browse | Koeslag, Francois Mouton, H. du T. |
| author_facet | Mouton, H. du T. Koeslag, Francois |
| author_sort | Koeslag, Francois |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (PhD (Electrical and Electronic Engineering))--University of Stellenbosch, 2009. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/3972 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:45:06.534Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/3972 A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier Koeslag, Francois Mouton, H. du T. Beukes, H. J. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Class D Audio Pulse timing errors Dissertations -- Electrical and electronic engineering Theses -- Electrical and electronic engineering Pulse-duration modulation Audio amplifiers Thesis (PhD (Electrical and Electronic Engineering))--University of Stellenbosch, 2009. Although the Class D topology offers several advantages, its use in audio amplification has previously been limited by the lack of competitiveness in fidelity compared to its linear counterparts. During the past decade, technological advances in semiconductor technology have awakened new interest since competitive levels of distortion could now be achieved. The output stage of such an amplifier is the primary limiting factor in its performance. In this dissertation, four non-ideal effects existing in this stage are identified and mathematically analysed. The analytical analysis makes use of a well-established mathematical model, based on the double Fourier series method, to model the imperfections introduced into a naturally sampled pulsewidth modulated waveform. The analysis is complemented by simulation using a strategy based on Newton’s numerical method. The theory is verified by a comparison between the analytical-, simulated- and experimental results. Doctoral 2009-03-02T11:47:06Z 2010-08-13T13:10:36Z 2009-03-02T11:47:06Z 2010-08-13T13:10:36Z 2009-03 Thesis http://hdl.handle.net/10019.1/3972 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Class D Audio Pulse timing errors Dissertations -- Electrical and electronic engineering Theses -- Electrical and electronic engineering Pulse-duration modulation Audio amplifiers Koeslag, Francois A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier |
| title | A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier |
| title_full | A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier |
| title_fullStr | A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier |
| title_full_unstemmed | A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier |
| title_short | A detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class D audio amplifier |
| title_sort | detailed analysis of the imperfections of pulsewidth modulated waveforms on the output stage of a class d audio amplifier |
| topic | Class D Audio Pulse timing errors Dissertations -- Electrical and electronic engineering Theses -- Electrical and electronic engineering Pulse-duration modulation Audio amplifiers |
| url | http://hdl.handle.net/10019.1/3972 |
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