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Multiphase Buck Converter with Minimum Time Control Strategy for RF Envelope Modulation
Citation
Cheng, Pengming and Vasic, Miroslav and García Suárez, Oscar and Oliver Ramírez, Jesús Angel and Alou Cervera, Pedro and Cobos Márquez, José Antonio (2011). Multiphase Buck Converter with Minimum Time Control Strategy for RF Envelope Modulation. In: "2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)", 06/03/2011 - 10/03/2011, Fort Worth, Texas, USA. ISBN 978-1-4244-8084-5. pp. 904-909. https://doi.org/10.1109/APEC.2011.5744702.
Description
| Title: | Multiphase Buck Converter with Minimum Time Control Strategy for RF Envelope Modulation |
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| Author/s: |
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| Item Type: | Presentation at Congress or Conference (Article) |
| Event Title: | 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) |
| Event Dates: | 06/03/2011 - 10/03/2011 |
| Event Location: | Fort Worth, Texas, USA |
| Title of Book: | Proceedings of 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) |
| Date: | 2011 |
| ISBN: | 978-1-4244-8084-5 |
| Subjects: | |
| Faculty: | E.T.S.I. Industriales (UPM) |
| Department: | Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014] |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
Power amplifier supplied with constant supply voltage has very low efficiency in the transmitter. A DC-DC converter in series with a linear regulator can be used to obtain voltage modulation. Since this converter should be able to change the output voltage very fast, a multiphase buck converter with a minimum time control strategy is proposed. To modulate supply voltage of the envelope amplifier, the multiphase converter works with some particular duty cycle (i/n, i=1, 2 ... n, n is the number of phase) to generate discrete output voltages, and in these duty cycles the output current ripple can be completely cancelled. The transition times for the minimum time are pre-calculated and inserted in a look-up table. The theoretical background, the system model that is necessary in order to calculate the transition times and the experimental results obtained with a 4-phase buck prototype are given
More information
| Item ID: | 13346 |
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| DC Identifier: | https://oa.upm.es/13346/ |
| OAI Identifier: | oai:oa.upm.es:13346 |
| DOI: | 10.1109/APEC.2011.5744702 |
| Official URL: | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?... |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 24 Oct 2012 11:27 |
| Last Modified: | 21 Apr 2016 12:39 |
