Full metadata
Title
Class D audio amplifier design with power supply noise cancellation
Description
In this thesis, a digital input class D audio amplifier system which has the ability
to reject the power supply noise and nonlinearly of the output stage is presented. The main digital class D feed-forward path is using the fully-digital sigma-delta PWM open loop topology. Feedback loop is used to suppress the power supply noise and harmonic distortions. The design is using global foundry 0.18um technology.
Based on simulation, the power supply rejection at 200Hz is about -49dB with
81dB dynamic range and -70dB THD+N. The full scale output power can reach as high as 27mW and still keep minimum -68dB THD+N. The system efficiency at full scale is about 82%.
to reject the power supply noise and nonlinearly of the output stage is presented. The main digital class D feed-forward path is using the fully-digital sigma-delta PWM open loop topology. Feedback loop is used to suppress the power supply noise and harmonic distortions. The design is using global foundry 0.18um technology.
Based on simulation, the power supply rejection at 200Hz is about -49dB with
81dB dynamic range and -70dB THD+N. The full scale output power can reach as high as 27mW and still keep minimum -68dB THD+N. The system efficiency at full scale is about 82%.
Date Created
2015
Contributors
- Bai, Jing (Author)
- Bakkaloglu, Bertan (Thesis advisor)
- Arizona State University (Publisher)
Topical Subject
Resource Type
Extent
x, 108 pages : illustrations (some color)
Language
eng
Copyright Statement
In Copyright
Primary Member of
Peer-reviewed
No
Open Access
No
Handle
https://hdl.handle.net/2286/R.I.36035
Statement of Responsibility
by Jing Bai
Description Source
Viewed on January 13, 2016
Level of coding
full
Note
thesis
Partial requirement for: M.S., Arizona State University, 2015
bibliography
Includes bibliographical references (pages 85-86)
Field of study: Electrical engineering
System Created
- 2015-12-01 07:05:19
System Modified
- 2021-08-30 01:26:23
- 3 years 2 months ago
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