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Series combination of a switched dc-dc converter and a linear regulator for high frequency RF envelope amplifier
Cita
García Suárez, Oscar; Vasic, Miroslav; Alou Cervera, Pedro; Oliver Ramírez, Jesús Angel; Díaz López, Daniel; Cheng, Pengming y Cobos Márquez, José Antonio (2011). Series combination of a switched dc-dc converter and a linear regulator for high frequency RF envelope amplifier. En: "Proceedings XXVI Simposio de la URSI (Unión Científica Internacional de Radio)", 07/09/2011 - 09/09/2011, Leganés (Spain). pp. 1-8.
Descripción
| Título: | Series combination of a switched dc-dc converter and a linear regulator for high frequency RF envelope amplifier |
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| Autor/es: |
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| Tipo de Documento: | Ponencia en Congreso o Jornada (Artículo) |
| Título del Evento: | Proceedings XXVI Simposio de la URSI (Unión Científica Internacional de Radio) |
| Fechas del Evento: | 07/09/2011 - 09/09/2011 |
| Lugar del Evento: | Leganés (Spain) |
| Título del Libro: | XXVI Simposio de la URSI (Unión Científica Internacional de Radio) |
| Fecha: | 2011 |
| 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 |
Resumen
Classical linear amplifiers such as A, AB and B offer very good linearity suitable for RF power amplifiers. However, its inherent low efficiency limits its use especially in base-stations that manage tens or hundreds of Watts. The use of linearization techniques such as Envelope Elimination and Restoration (EER) allow an increase of efficiency keeping good linearity. This technique requires a very fast dc-dc power converter to provide variable voltage supply to the power amplifier. In this paper, several alternatives are analyzed to implement the envelope amplifier based on a cascade association of a switched dc-dc converter and a linear regulator. A simplified version of this approach is also suitable to operate with Envelope Tracking technique.
Más información
| ID de Registro: | 13365 |
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| Identificador DC: | http://oa.upm.es/13365/ |
| Identificador OAI: | oai:oa.upm.es:13365 |
| Depositado por: | Memoria Investigacion |
| Depositado el: | 25 Feb 2013 12:43 |
| Ultima Modificación: | 21 Abr 2016 12:41 |
