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Sigma Delta Digital Drive Signals for Switchmode Power Amplifiers

Bassoo, Vandana and Faulkner, Mike (2008) Sigma Delta Digital Drive Signals for Switchmode Power Amplifiers. Electronics Letters, 44 (22). pp. 1299-1300. ISSN 0013-5194

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Abstract

A novel all-digital approach to generate a pulse train to drive switch-mode power amplifiers is proposed. Sigma-delta (ΣΔ) techniques are used to shape time quantisation noise away from the band of interest. The proposed architecture promises greater than 10-dB improvement in adjacent channel power over an existing scheme. The key contribution is to quantise in the polar domain while performing the ΣΔ filtering in the Cartesian domain.

Item Type: Article
Uncontrolled Keywords: ResPubID15600, switch-mode power amplifiers, sigma delta techniques, pulse train
Subjects: Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
FOR Classification > 0906 Electrical and Electronic Engineering
SEO Classification > 8901 Communication Networks and Services
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Depositing User: VUIR
Date Deposited: 21 Nov 2011 01:36
Last Modified: 21 Nov 2011 01:36
URI: http://vuir.vu.edu.au/id/eprint/3502
DOI: 10.1049/el:20089597
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Citations in Scopus: 10 - View on Scopus

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