Sigma Delta Digital Drive Signals for Switchmode Power Amplifiers

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Bassoo, Vandana ORCID: 0000-0003-4049-4554 and Faulkner, Michael (2008) Sigma Delta Digital Drive Signals for Switchmode Power Amplifiers. Electronics Letters, 44 (22). pp. 1299-1300. ISSN 0013-5194


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.

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Item type Article
DOI 10.1049/el:20089597
Subjects Historical > Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
Historical > FOR Classification > 0906 Electrical and Electronic Engineering
Historical > SEO Classification > 8901 Communication Networks and Services
Keywords ResPubID15600, switch-mode power amplifiers, sigma delta techniques, pulse train
Citations in Scopus 17 - View on Scopus
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