Abstract
A new architecture of class-D amplifier with a multibit delta-sigma modulator control is presented in this paper. In the presented amplifier, the 3-bit 8-level digital outputs of the second-order delta-sigma modulator are utilized to generate switching signals with different pulse widths for the class-D power amplifier. A closed-loop class-D amplifier is adopted by feeding the analog output signal from the power stage to the input to improve the linearity. The presented class-D amplifier is simulated with TSMC 0.18-μm CMOS process. The SNDR of the proposed amplifier is 78 dB within a 25 kHz signal bandwidth under a sample rate of 2.56 MHz. The THD is 0.01% at a power consumption of 140 mW.
| Original language | English |
|---|---|
| Title of host publication | 2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781509023332 |
| DOIs | |
| Publication status | Published - 2016 Dec 27 |
| Event | 5th IEEE Global Conference on Consumer Electronics, GCCE 2016 - Kyoto, Japan Duration: 2016 Oct 11 → 2016 Oct 14 |
Publication series
| Name | 2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016 |
|---|
Other
| Other | 5th IEEE Global Conference on Consumer Electronics, GCCE 2016 |
|---|---|
| Country | Japan |
| City | Kyoto |
| Period | 16/10/11 → 16/10/14 |
Fingerprint
Keywords
- Class-D Amplifier
- Delta-Sigma Class-D Amplifier
- Switching Amplifier
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering
- Computer Science Applications
- Hardware and Architecture
- Instrumentation
Cite this
A delta-sigma modulator-based class-D amplifier. / Kuo, Chien Hung; Lin, Sheng Chi.
2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7800440 (2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A delta-sigma modulator-based class-D amplifier
AU - Kuo, Chien Hung
AU - Lin, Sheng Chi
PY - 2016/12/27
Y1 - 2016/12/27
N2 - A new architecture of class-D amplifier with a multibit delta-sigma modulator control is presented in this paper. In the presented amplifier, the 3-bit 8-level digital outputs of the second-order delta-sigma modulator are utilized to generate switching signals with different pulse widths for the class-D power amplifier. A closed-loop class-D amplifier is adopted by feeding the analog output signal from the power stage to the input to improve the linearity. The presented class-D amplifier is simulated with TSMC 0.18-μm CMOS process. The SNDR of the proposed amplifier is 78 dB within a 25 kHz signal bandwidth under a sample rate of 2.56 MHz. The THD is 0.01% at a power consumption of 140 mW.
AB - A new architecture of class-D amplifier with a multibit delta-sigma modulator control is presented in this paper. In the presented amplifier, the 3-bit 8-level digital outputs of the second-order delta-sigma modulator are utilized to generate switching signals with different pulse widths for the class-D power amplifier. A closed-loop class-D amplifier is adopted by feeding the analog output signal from the power stage to the input to improve the linearity. The presented class-D amplifier is simulated with TSMC 0.18-μm CMOS process. The SNDR of the proposed amplifier is 78 dB within a 25 kHz signal bandwidth under a sample rate of 2.56 MHz. The THD is 0.01% at a power consumption of 140 mW.
KW - Class-D Amplifier
KW - Delta-Sigma Class-D Amplifier
KW - Switching Amplifier
UR - http://www.scopus.com/inward/record.url?scp=85010443359&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85010443359&partnerID=8YFLogxK
U2 - 10.1109/GCCE.2016.7800440
DO - 10.1109/GCCE.2016.7800440
M3 - Conference contribution
AN - SCOPUS:85010443359
T3 - 2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016
BT - 2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -