Digital pulse width modulation for Class-D audio amplifiers

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dc.contributor.advisorMouton, H. du T.
dc.contributor.authorJacobs, Deonen_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering.
dc.date.accessioned2006-10-12T05:40:21Zen_ZA
dc.date.accessioned2010-06-01T08:27:41Z
dc.date.available2006-10-12T05:40:21Zen_ZA
dc.date.available2010-06-01T08:27:41Z
dc.date.issued2006-03
dc.descriptionThesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006.
dc.description.abstractDigital audio data storage mediums have long been used within the consumer market. Today, because of the advancement of processor clock speeds and increased MOSFET switching capabilities, digital audio data formats can be directly amplified using power electronic inverters. These amplifiers known as Class-D have an advantage over there analogue counterparts because of their high efficiency. This thesis deals with the signal processing algorithms necessary to convert the digital audio data obtained from the source to a digital pulse width modulated signal which controls a full bridge inverter for audio amplification. These algorithms address difficulties experienced in the past which prevented high fidelity digital pulse width modulators to be implemented. The signal processing algorithms are divided into modular blocks, each of which are defined in theory, designed and simulated in MatlabĀ® and then implemented within VHDL firmware. These firmware blocks are then used to realize a Class-D audio amplifier.en_ZA
dc.format.extent2286628 bytesen_ZA
dc.format.mimetypeapplication/pdfen_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/1574
dc.language.isoenen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectTheses -- Electronic engineeringen_ZA
dc.subjectDissertations -- Electronic engineeringen_ZA
dc.subject.lcshAudio amplifiersen_ZA
dc.subject.lcshSignal processing -- Digital techniquesen_ZA
dc.titleDigital pulse width modulation for Class-D audio amplifiersen_ZA
dc.typeThesisen_ZA
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