Optimal Design of Envelope Amplifier Based on Linear Assisted Buck Converter

Vasic, Miroslav; Díaz López, Daniel; García Suárez, Oscar; Alou Cervera, Pedro; Oliver Ramírez, Jesús Angel y Cobos Márquez, José Antonio (2012). Optimal Design of Envelope Amplifier Based on Linear Assisted Buck Converter. En: "Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012", 05/02/2012 - 09/02/2012, Orlando (Florida, USA). pp. 836-843.

Descripción

Título: Optimal Design of Envelope Amplifier Based on Linear Assisted Buck Converter
Autor/es:
  • Vasic, Miroslav
  • Díaz López, Daniel
  • García Suárez, Oscar
  • Alou Cervera, Pedro
  • Oliver Ramírez, Jesús Angel
  • Cobos Márquez, José Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012
Fechas del Evento: 05/02/2012 - 09/02/2012
Lugar del Evento: Orlando (Florida, USA)
Título del Libro: Proceedings of IEEE Applied Power Electronics Conference and Exposition (APEC) 2012
Fecha: Febrero 2012
Materias:
Palabras Clave Informales: GaN envelope amplifier envelope elimination envelope restoration envelope tracking linear RF power amplifier linear regulator linear-assisted buck converter optimal design switching DC-DC converter
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Envelope Tracking (ET) and Envelope Elimination and Restoration (EER) are two techniques that have been used as a solution for highly efficient linear RF Power Amplifiers (PA). In both techniques the most important part is a dc-dc converter called envelope amplifier that has to supply the RF PA with variable voltage. Besides high efficiency, its bandwidth is very important as well. Envelope amplifier based on parallel combination of a switching dc-dc converter and a linear regulator is an architecture that is widely used due to its simplicity. In this paper we discuss about theoretical limitations of this architecture regarding its efficiency and we demonstrate two possible way of its implementation. In order to derive the presented conclusions, a theoretical model of envelope amplifier's efficiency has been presented. Additionally, the benefits of the new emerging GaN technology for this application have been shown as well.

Más información

ID de Registro: 20873
Identificador DC: http://oa.upm.es/20873/
Identificador OAI: oai:oa.upm.es:20873
URL Oficial: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?reload=true&punumber=6158725
Depositado por: Memoria Investigacion
Depositado el: 02 Jun 2015 17:53
Ultima Modificación: 02 Jun 2015 17:53
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