Analysis and design of a digital class d amplifier

This report documents the achievements for the final year project. A detailed analysis of the existing algorithms reveals that while the Lagrange Interpolation algorithm provides the best Total Harmonic Distortion (THD) performance and the Delta Compensation algorithm exhibits the worst THD perfo...

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Main Author: Goh, Teck Lun.
Other Authors: Tan Meng Tong
Format: Final Year Project (FYP)
Language:English
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/10356/17311
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author Goh, Teck Lun.
author2 Tan Meng Tong
author_facet Tan Meng Tong
Goh, Teck Lun.
author_sort Goh, Teck Lun.
collection NTU
description This report documents the achievements for the final year project. A detailed analysis of the existing algorithms reveals that while the Lagrange Interpolation algorithm provides the best Total Harmonic Distortion (THD) performance and the Delta Compensation algorithm exhibits the worst THD performance; the Lagrange Interpolation algorithm needs the most complex hardware, whereas the Delta Compensation demands for a relatively simple hardware. After the analysis of the existing algorithms, three new algorithms that made use of the Taylor Series Expansion were proposed. By eliminating the use of division operations, the new algorithms can be implemented with a simpler hardware configuration. This was done while ensuring that THD is not compromised, as shown in Section 3.3 Total Harmonic Distortion.All the designs, including the three new algorithms were implemented on Altera Quartus II. Simulation results and further testing reveals that these designs worked as expected. A new algorithm that promises a higher power efficiency, and smaller circuit area design was developed.
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spelling ntu-10356/173112023-07-07T15:55:04Z Analysis and design of a digital class d amplifier Goh, Teck Lun. Tan Meng Tong School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits This report documents the achievements for the final year project. A detailed analysis of the existing algorithms reveals that while the Lagrange Interpolation algorithm provides the best Total Harmonic Distortion (THD) performance and the Delta Compensation algorithm exhibits the worst THD performance; the Lagrange Interpolation algorithm needs the most complex hardware, whereas the Delta Compensation demands for a relatively simple hardware. After the analysis of the existing algorithms, three new algorithms that made use of the Taylor Series Expansion were proposed. By eliminating the use of division operations, the new algorithms can be implemented with a simpler hardware configuration. This was done while ensuring that THD is not compromised, as shown in Section 3.3 Total Harmonic Distortion.All the designs, including the three new algorithms were implemented on Altera Quartus II. Simulation results and further testing reveals that these designs worked as expected. A new algorithm that promises a higher power efficiency, and smaller circuit area design was developed. Bachelor of Engineering 2009-06-05T07:13:40Z 2009-06-05T07:13:40Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/17311 en Nanyang Technological University 128 p. application/pdf
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits
Goh, Teck Lun.
Analysis and design of a digital class d amplifier
title Analysis and design of a digital class d amplifier
title_full Analysis and design of a digital class d amplifier
title_fullStr Analysis and design of a digital class d amplifier
title_full_unstemmed Analysis and design of a digital class d amplifier
title_short Analysis and design of a digital class d amplifier
title_sort analysis and design of a digital class d amplifier
topic DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits
url http://hdl.handle.net/10356/17311
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