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High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique
Citation
Vasic, Miroslav 
ORCID: https://orcid.org/0000-0001-9597-6409, García Suárez, Oscar ORCID: https://orcid.org/0000-0001-6042-3855, Oliver Ramírez, Jesús Angel ORCID: https://orcid.org/0000-0002-5286-5378, Alou Cervera, Pedro ORCID: https://orcid.org/0000-0002-2985-1330, Díaz López, Daniel, Cobos Márquez, José Antonio ORCID: https://orcid.org/0000-0003-4542-2656, Gimeno Martín, Alejandro, Pardo Martin, José Manuel ORCID: https://orcid.org/0000-0002-5281-2516, Benavente Peces, César ORCID: https://orcid.org/0000-0002-2734-890X and Ortega González, Francisco Javier ORCID: https://orcid.org/0000-0001-9744-5601
(2010).
High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique.
In: "2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010)", 12/09/2010 - 16/09/2010, Atlanta, Georgia, EEUU. ISBN 978-1-4244-5286-6.
Description
| Title: | High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique |
|---|---|
| Author/s: |
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| Item Type: | Presentation at Congress or Conference (Article) |
| Event Title: | 2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010) |
| Event Dates: | 12/09/2010 - 16/09/2010 |
| Event Location: | Atlanta, Georgia, EEUU |
| Title of Book: | Proceedings of the 2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010) |
| Date: | November 2010 |
| ISBN: | 978-1-4244-5286-6 |
| Subjects: | |
| Faculty: | E.U.I.T. Telecomunicación (UPM) |
| Department: | Ingeniería de Circuitos y Sistemas [hasta 2014] |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
Due to complex envelope and phase modulation employed in modern transmitters it is necessary to use power amplifiers that have high linearity. Linear power amplifiers (classes A, B and AB) are commonly used, but they suffer from low efficiency especially if the transmitted signal has high peak to average power ratio (PAPR). Kahn's technique based on envelope elimination and restoration (EER) is based on idea that high efficiency power supply (envelope amplifier) could be used to modulate the envelope of high efficient non linear power amplifiers (classes D or E). This paper presents solutions for power amplifier that performs envelope modulation and class E amplifier that is used as a non linear amplifier. The envelope amplifier is implemented as a multilevel converter in series with linear regulator and can provide up to 100 W of instantaneous power and reproduce 2 MHz sine wave. The implemented Class E amplifier can operate at 120 MHz with efficiency near to 85%. The envelope amplifier and class E amplifier have been integrated and efficiency and linearity of the implemented transmitter has been measured and presented
More information
| Item ID: | 7900 |
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| DC Identifier: | https://oa.upm.es/7900/ |
| OAI Identifier: | oai:oa.upm.es:7900 |
| Official URL: | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb... |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 28 Jul 2011 08:22 |
| Last Modified: | 20 Apr 2016 16:51 |
