Ripple cancellation technique applied to a synchronous buck converter to achieve very high bandwidth and very high efficiency envelope amplifier

Díaz López, Daniel; García Suárez, Oscar; Oliver Ramírez, Jesús Angel; Alou Cervera, Pedro y Cobos Márquez, José Antonio (2013). Ripple cancellation technique applied to a synchronous buck converter to achieve very high bandwidth and very high efficiency envelope amplifier. En: "Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE", 17/03/2013 - 21/03/2013, Long Beach (California, USA). ISBN 978-1-4673-4355-8/13. pp..

Descripción

Título: Ripple cancellation technique applied to a synchronous buck converter to achieve very high bandwidth and very high efficiency envelope amplifier
Autor/es:
  • Díaz López, Daniel
  • 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: Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE
Fechas del Evento: 17/03/2013 - 21/03/2013
Lugar del Evento: Long Beach (California, USA)
Título del Libro: Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE
Fecha: 2013
ISBN: 978-1-4673-4355-8/13
Materias:
Palabras Clave Informales: power amplifiers;power convertors;64QAM signal;current ripple cancellation technique;frequency 4 MHz;large signal bandwidth;ripple cancellation circuit;switching frequency;synchronous buck converter;very high bandwidth envelope amplifier;very high efficiency envelope amplifier
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

This work presents a single stage converter for a high bandwidth and a high efficiency envelope amplifier. The current ripple cancellation technique is applied to a synchronous buck converter to cancel the output current ripple and to decrease the switching frequency without a reduction in the large signal bandwidth. The converter is modeled and the new design with ripple cancellation circuit is detailed. The advantages of the proposed design are presented and validated experimentally. The transfer function of the output filter of the buck converter with ripple cancellation circuit has been modeled and compared to measurements, showing a good correspondence. Experimental validation is provided at 4MHz of switching frequency for DC and variable output voltage for a sinusoidal and a 64QAM signal. Additional experimental validation of the efficiency improvement is provided, compared to the equivalent design (same bandwidth and output voltage ripple) of the conventional buck converter.

Más información

ID de Registro: 30183
Identificador DC: http://oa.upm.es/30183/
Identificador OAI: oai:oa.upm.es:30183
URL Oficial: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6520580&isnumber=6520164
Depositado por: Memoria Investigacion
Depositado el: 14 Nov 2014 16:30
Ultima Modificación: 14 Nov 2014 16:30
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