Switching power amplifiers can be based on various analog or digital, two- or three-level pulse-width modulation (PWM) methods. The paper provides a review and an in-depth theoretical analysis of 12 variants of natural sampled, uniform sampled, or hybrid sampled PWM methods. Several not previously considered modulation variants are analyzed. Practical results for implemented amplifier examples are given.
Author:
Nielsen, Karsten
Affiliations:
Bang & Olufsen, Denmark ; Institute of Automation, Technical University of Denmark(See document for exact affiliation information.)
AES Convention:
102 (March 1997)
Paper Number:
4446
Publication Date:
March 1, 1997
Subject:
Signal Processing
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