Envelope Amplifier Based on a Hybrid Series Converter With The Slow-envelope Technique

Cheng, Pengming; García Suárez, Oscar; Vasic, Miroslav; Alou Cervera, Pedro; Oliver Ramírez, Jesús Angel; Montoro, G. y Cobos Márquez, José Antonio (2012). Envelope Amplifier Based on a Hybrid Series Converter With The Slow-envelope Technique. En: "Proceedings of 2012 IEEE Conference on Energy Conversion Congress and Exposition (ECCE)", 15/09/2012 - 20/09/2012, Raleigh (North Carolina). ISBN 978-1-4673-0802-1. pp. 1-5.

Descripción

Título: Envelope Amplifier Based on a Hybrid Series Converter With The Slow-envelope Technique
Autor/es:
  • Cheng, Pengming
  • García Suárez, Oscar
  • Vasic, Miroslav
  • Alou Cervera, Pedro
  • Oliver Ramírez, Jesús Angel
  • Montoro, G.
  • Cobos Márquez, José Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Proceedings of 2012 IEEE Conference on Energy Conversion Congress and Exposition (ECCE)
Fechas del Evento: 15/09/2012 - 20/09/2012
Lugar del Evento: Raleigh (North Carolina)
Título del Libro: Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Fecha: 2012
ISBN: 978-1-4673-0802-1
Materias:
Escuela: Centro de Electrónica Industrial (CEI) (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img] PDF (Document Portable Format) - Acceso permitido solamente a usuarios en el campus de la UPM - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (2MB)

Resumen

High frequency dc-dc switching converters are used as envelope amplifiers in RF transmitters. The dc-dc converter should operate at very high frequency to track an envelope in the MHz range to supply the power amplifier. One of the circuits suitable for this application is a hybrid topology composed of a switched converter and a linear regulator in series that work together to adjust the output voltage to track the envelope with accuracy. This topology can take advantage of the reduced slew-rate technique where switching dc-dc converter provides the RF envelope with limited slew rate in order to avoid high switching frequency and high power losses, while the linear regulator performs fine adjustment in order to obtain the exact replica of the RF envelope. The combination of this control technique with this topology is proposed in this paper. Envelopes with different bandwidth will be considered to optimize the efficiency of the dc-dc converter. The calculations and experiments have been done to track a 2MHz envelope in the range 0-12V for an EER RF transmitter.

Más información

ID de Registro: 20886
Identificador DC: http://oa.upm.es/20886/
Identificador OAI: oai:oa.upm.es:20886
URL Oficial: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6342420
Depositado por: Memoria Investigacion
Depositado el: 12 Nov 2013 15:00
Ultima Modificación: 22 Sep 2014 11:21
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM