Design of envelope amplifier based on interleaved multiphase buck converter with minimum time control for RF application

Cheng, Pengming; Vasic, Miroslav; García Suárez, Oscar; Oliver Ramírez, Jesús Angel; Alou Cervera, Pedro y Cobos Márquez, José Antonio (2011). Design of envelope amplifier based on interleaved multiphase buck converter with minimum time control for RF application. En: "2011 IEEE Energy Conversion Congress and Exposition (ECCE)", 17/09/2011 - 22/09/2011, Phoenix, Arizona, EEUU. ISBN 978-1-4577-0542-7. pp. 1-8.

Descripción

Título: Design of envelope amplifier based on interleaved multiphase buck converter with minimum time control for RF application
Autor/es:
  • Cheng, Pengming
  • Vasic, Miroslav
  • García Suárez, Oscar
  • Oliver Ramírez, Jesús Angel
  • Alou Cervera, Pedro
  • Cobos Márquez, José Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 2011 IEEE Energy Conversion Congress and Exposition (ECCE)
Fechas del Evento: 17/09/2011 - 22/09/2011
Lugar del Evento: Phoenix, Arizona, EEUU
Título del Libro: Proceedings of 2011 IEEE Energy Conversion Congress and Exposition (ECCE)
Fecha: 2011
ISBN: 978-1-4577-0542-7
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In this paper, an interleaved multiphase buck converter with minimum time control strategy for envelope amplifiers in high efficiency RF power amplifiers is proposed. The solution for the envelope amplifier is to combine the proposed converter with a linear regulator in series. High efficiency of envelope amplifier can be obtained through modulating the supply voltage of the linear regulator. Instead of tracking the envelope, the buck converter has discrete output voltage that corresponding to particular duty cycles which achieve total ripple cancellation. The transient model for minimum time control is explained, and the calculation of transient times that are pre-calculated and inserted into a lookup table is presented. The filter design trade-off that limits capability of envelope modulation is also discussed. The experimental results verify the fast voltage transient obtained with a 4-phase buck prototype.

Más información

ID de Registro: 13319
Identificador DC: http://oa.upm.es/13319/
Identificador OAI: oai:oa.upm.es:13319
URL Oficial: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6063924
Depositado por: Memoria Investigacion
Depositado el: 25 Oct 2012 07:51
Ultima Modificación: 21 Abr 2016 12:37
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