Three-level buck converter for envelope tracking applications

Yousefzadeh, Vahid; Alarcón Cot, Eduardo José; Maksimovic, Eduard Alarcón And Dragan

doi:10.1109/TPEL.2005.869728

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Yousefzadeh, Vahid

Alarcón Cot, Eduardo José

Maksimovic, Eduard Alarcón And Dragan

Document typeArticle

Defense date2006-03

Rights accessRestricted access - publisher's policy

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder

Abstract

This letter proposes a three-level buck converter for tracking applications such as envelope-tracking in radio frequency power amplifiers (RFPAs). It is shown that the three-level buck converter can offer advantages in terms of switching ripples, losses, bandwidth, or the size of magnetic components compared to a standard buck or a two-phase buck converter. Experimental results illustrate improved efficiency and ripple rejection in an RFPA envelope-tracking application representative for low-power battery-operated systems.

CitationYousefzadeh, V.; Alarcon, E.; Maksimovic, E. Three-level buck converter for envelope tracking applications. "IEEE power electronics letters", Març 2006, vol. 21, núm. 2, p. 549-552.

URIhttp://hdl.handle.net/2117/331149

DOI10.1109/TPEL.2005.869728

ISSN1540-7985

Publisher versionhttps://ieeexplore.ieee.org/document/1603688

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