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Título del libro: 2009 Ieee Energy Conversion Congress And Exposition, Ecce 2009
Título del capítulo: Comparison of two different cell topologies for a multilevel power supply to achieve high efficiency envelope amplifier

Autores UNAM:
OSCAR PROSPERO GARCIA;
Autores externos:

Idioma:
Inglés
Año de publicación:
2009
Palabras clave:

Cell architectures; Cell topology; Dc-dc power conversion; Electrical and physical design; Envelope elimination and restorations; Experimental comparison; High efficiency; Linear regulators; Multi-level systems; Multilevel cell; Multilevel converter; Power supply; RF power amplifiers; Two-state; Amplitude modulation; Electric power measurement; Electric power systems; Energy conversion; Power amplifiers; Power converters; Restoration; Topology; Cells


Resumen:

A solution combining a multilevel converter in series with a linear regulator to obtain an envelope amplifier was presented recently in [1] for EER. Two possible implementations of the multilevel cell are compared. In [1], a two-state topology for the multilevel cell is proposed for the envelope amplifier. The three-state cell topology, proposed in this paper, has two main advantages: less number of cells and inputs and a simpler electrical and physical design. The comparison of the energy handled by each cell topology confirms several advantages of the three-state cell. Considerations to optimize the design of the multilevel converter for both cell topologies and experimental comparison between both cell architectures are enclosed. © 2009 IEEE.


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