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Parallel Phase-Shifted Carrier Pulse-Width Modulation (PSCPWM)-A Novel Approach to Switching Power Amplifier Design

A novel family of modulator and power stage structures suitable for digital power amplification is presented. Parallel phase-shifted carrier pulse-width modulation (PSCPWM) is a new multilevel modulation method which reduces switching noise considerably and increases the effective sampling frequency. A general theoretical analysis of the tonal behavior of PSCPWM is provided, and several examples illustrate the new possibilities.

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:4447 Import into BibTeX
Subject:Signal Processing

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