Title :
A novel pulse width modulation sampling process for low power, low distortion digital Class D amplifiers
Author :
Li, Huiyun ; Gwee, Bah Hwee ; Chang, Joseph S. ; Tan, Meng Tong
Author_Institution :
Sch. of Electr. & Electron. Engineening, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A PWM sampling process for low-power digital Class D amplifiers with low harmonic distortion is proposed. By means of a novel algorithm, the Natural Sampling Process is emulated through a Delta-Compensation Uniform Sampling Process. This algorithm features a simple circuit implementation (small IC area), low power operation (low sampling rate) and a highly desirable low harmonic distortion
Keywords :
amplifiers; harmonic distortion; low-power electronics; pulse width modulation; sampling methods; delta-compensation uniform sampling process; harmonic distortion; integrated circuit; low-power digital Class D amplifier; natural sampling process; pulse width modulation algorithm; Auditory system; Circuits; Digital modulation; Harmonic distortion; Interpolation; Pulse amplifiers; Pulse width modulation; Sampling methods; Signal sampling; Space vector pulse width modulation;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.951696
