Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking
This Ph.D. program pertains to investigations into the mechanisms and parameters affecting the non-idealities and power-efficiency of Class D Amplifiers (CDAs), and our ensuing novel circuit designs (and proposal of novel architectures) to mitigate the aforesaid. There are three specific CDA arch...
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| Other Authors: | |
| Format: | Thesis-Doctor of Philosophy |
| Language: | English |
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Nanyang Technological University
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/136586 |
| _version_ | 1811684043026071552 |
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| author | Kang, Yang |
| author2 | Chang Joseph Sylvester |
| author_facet | Chang Joseph Sylvester Kang, Yang |
| author_sort | Kang, Yang |
| collection | NTU |
| description | This Ph.D. program pertains to investigations into the mechanisms and parameters
affecting the non-idealities and power-efficiency of Class D Amplifiers (CDAs), and
our ensuing novel circuit designs (and proposal of novel architectures) to mitigate
the aforesaid. There are three specific CDA architectures. The first is the PWM-In
PWM-Out (PIPO) CDA, an emerging CDA whose input is PWM, hence highly
compatible with digital signal processing. Our effort pertains to addressing its
relatively high inherent non-linearities. The second is the Bang-Bang CDA,
arguably the simplest CDA architecture, hence the CDA with the lowest hardware,
and potentially the most power-efficient CDA. Our effort pertains to the design of
a 3-state Bang-Bang CDA – to our knowledge the first 3-state (filterless) Bang-Bang
CDA reported in literature – where we ascertain its fidelity and power-efficiency.
The third is the high-frequency high-efficient CDA for the supply modulator of the
Envelop Tracking (ET) Power Amplifier (PA) which serves as the power supply to
a radio frequency (RF) PA. Our effort pertains to addressing the power-efficiency
of the wideband PA. |
| first_indexed | 2024-10-01T04:22:21Z |
| format | Thesis-Doctor of Philosophy |
| id | ntu-10356/136586 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:22:21Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1365862023-07-04T17:21:27Z Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking Kang, Yang Chang Joseph Sylvester School of Electrical and Electronic Engineering ejschang@ntu.edu.sg Engineering::Electrical and electronic engineering::Integrated circuits This Ph.D. program pertains to investigations into the mechanisms and parameters affecting the non-idealities and power-efficiency of Class D Amplifiers (CDAs), and our ensuing novel circuit designs (and proposal of novel architectures) to mitigate the aforesaid. There are three specific CDA architectures. The first is the PWM-In PWM-Out (PIPO) CDA, an emerging CDA whose input is PWM, hence highly compatible with digital signal processing. Our effort pertains to addressing its relatively high inherent non-linearities. The second is the Bang-Bang CDA, arguably the simplest CDA architecture, hence the CDA with the lowest hardware, and potentially the most power-efficient CDA. Our effort pertains to the design of a 3-state Bang-Bang CDA – to our knowledge the first 3-state (filterless) Bang-Bang CDA reported in literature – where we ascertain its fidelity and power-efficiency. The third is the high-frequency high-efficient CDA for the supply modulator of the Envelop Tracking (ET) Power Amplifier (PA) which serves as the power supply to a radio frequency (RF) PA. Our effort pertains to addressing the power-efficiency of the wideband PA. Doctor of Philosophy 2020-01-03T02:29:57Z 2020-01-03T02:29:57Z 2018 Thesis-Doctor of Philosophy Kang, Y. (2018). Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/136586 10.32657/10356/136586 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering::Integrated circuits Kang, Yang Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking |
| title | Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking |
| title_full | Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking |
| title_fullStr | Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking |
| title_full_unstemmed | Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking |
| title_short | Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking |
| title_sort | class d amplifiers cdas pwm in pwm out cda filterless bang bang cda and high frequency high efficiency cda for envelope tracking |
| topic | Engineering::Electrical and electronic engineering::Integrated circuits |
| url | https://hdl.handle.net/10356/136586 |
| work_keys_str_mv | AT kangyang classdamplifierscdaspwminpwmoutcdafilterlessbangbangcdaandhighfrequencyhighefficiencycdaforenvelopetracking |