Optimum Design of an Envelope Tracking Buck Converter for RF PA using GaN HEMTs

Cucak, Dejana and Vasic, Miroslav and García Suárez, Oscar and Oliver Ramírez, Jesús Angel and Alou Cervera, Pedro and Cobos Márquez, José Antonio (2011). Optimum Design of an Envelope Tracking Buck Converter for RF PA using GaN HEMTs. In: "2011 IEEE Energy Conversion Congress and Exposition (ECCE)", 17/09/2011 - 22/09/2011, Phoenix, Arizona, EEUU. ISBN 978-1-4577-0542-7. pp. 1-8.

Description

Title: Optimum Design of an Envelope Tracking Buck Converter for RF PA using GaN HEMTs
Author/s:
  • Cucak, Dejana
  • Vasic, Miroslav
  • García Suárez, Oscar
  • Oliver Ramírez, Jesús Angel
  • Alou Cervera, Pedro
  • Cobos Márquez, José Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2011 IEEE Energy Conversion Congress and Exposition (ECCE)
Event Dates: 17/09/2011 - 22/09/2011
Event Location: Phoenix, Arizona, EEUU
Title of Book: Proceedings of 2011 IEEE Energy Conversion Congress and Exposition (ECCE)
Date: 2011
ISBN: 978-1-4577-0542-7
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this paper, filter design methodology and application of GaN HEMTs for high efficiency Envelope Amplifier in RF transmitters are proposed. The main objectives of the filter design are generation of the envelope reference with the minimum possible distortion and high efficiency of the amplifier obtained by the optimum trade-off between conduction and switching losses. This optimum point was determined using power losses model for synchronous buck with sinusoidal output voltage and experimental results showed good correspondence with the model and verified the proposed methodology. On the other hand, comparing to Si MOSFETs, GaN HEMTs can provide higher efficiency of the envelope amplifier, due to superior conductivity and switching characteristics. Experimental results verified benefits of GaN devices comparing to the appliance of Si switching devices with very good Figure Of Merit, for this particular application

More information

Item ID: 13351
DC Identifier: http://oa.upm.es/13351/
OAI Identifier: oai:oa.upm.es:13351
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6063914
Deposited by: Memoria Investigacion
Deposited on: 27 Nov 2012 11:32
Last Modified: 21 Apr 2016 12:40
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