Analysis and comparison of three topologies of the ladder multilevel DC/DC converter

Andres Lopez; Rafael Diez; Gabriel Perilla; Diego Patino

doi:10.1109/TPEL.2012.2183388

Analysis and comparison of three topologies of the ladder multilevel DC/DC converter

Andres Lopez
, Rafael Diez
, Gabriel Perilla
, Diego Patino

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

In this paper, three dc/dc ladder multilevel converters are compared. The first one is the classical ladder topology and the two other topologies presented are based on the classical one. A mathematical calculation of the output resistance and the gain of the converter as a function of the number of levels is carried out for the three topologies in order to estimate the voltage drop due to the output current. These calculations are validated with simulations and experimental results. Finally, the behavior of the three topologies is compared through experimental tests. Results show higher performance for the presented converters compared to the classical ladder.

Original language	English
Article number	6126055
Pages (from-to)	3119-3127
Number of pages	9
Journal	IEEE Transactions on Power Electronics
Volume	27
Issue number	7
DOIs	https://doi.org/10.1109/TPEL.2012.2183388
State	Published - 2012

Keywords

DC-DC power conversion
multilevel converters
switched capacitor circuits

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10.1109/TPEL.2012.2183388

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title = "Analysis and comparison of three topologies of the ladder multilevel DC/DC converter",

abstract = "In this paper, three dc/dc ladder multilevel converters are compared. The first one is the classical ladder topology and the two other topologies presented are based on the classical one. A mathematical calculation of the output resistance and the gain of the converter as a function of the number of levels is carried out for the three topologies in order to estimate the voltage drop due to the output current. These calculations are validated with simulations and experimental results. Finally, the behavior of the three topologies is compared through experimental tests. Results show higher performance for the presented converters compared to the classical ladder.",

keywords = "DC-DC power conversion, multilevel converters, switched capacitor circuits",

author = "Andres Lopez and Rafael Diez and Gabriel Perilla and Diego Patino",

note = "Funding Information: Manuscript received August 19, 2011; revised November 4, 2011; accepted December 23, 2011. Date of current version April 3, 2012. This work was supported by Vicerector{\'i}a Acad{\'e}mica, Pontificia Universidad Javeriana, Bogota DC, Colombia under Project 003231. Recommended for publication by Associate Editor C. A. Canesin.",

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doi = "10.1109/TPEL.2012.2183388",

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T1 - Analysis and comparison of three topologies of the ladder multilevel DC/DC converter

AU - Lopez, Andres

AU - Diez, Rafael

AU - Perilla, Gabriel

AU - Patino, Diego

N1 - Funding Information: Manuscript received August 19, 2011; revised November 4, 2011; accepted December 23, 2011. Date of current version April 3, 2012. This work was supported by Vicerectoría Académica, Pontificia Universidad Javeriana, Bogota DC, Colombia under Project 003231. Recommended for publication by Associate Editor C. A. Canesin.

PY - 2012

Y1 - 2012

N2 - In this paper, three dc/dc ladder multilevel converters are compared. The first one is the classical ladder topology and the two other topologies presented are based on the classical one. A mathematical calculation of the output resistance and the gain of the converter as a function of the number of levels is carried out for the three topologies in order to estimate the voltage drop due to the output current. These calculations are validated with simulations and experimental results. Finally, the behavior of the three topologies is compared through experimental tests. Results show higher performance for the presented converters compared to the classical ladder.

AB - In this paper, three dc/dc ladder multilevel converters are compared. The first one is the classical ladder topology and the two other topologies presented are based on the classical one. A mathematical calculation of the output resistance and the gain of the converter as a function of the number of levels is carried out for the three topologies in order to estimate the voltage drop due to the output current. These calculations are validated with simulations and experimental results. Finally, the behavior of the three topologies is compared through experimental tests. Results show higher performance for the presented converters compared to the classical ladder.

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KW - multilevel converters

KW - switched capacitor circuits

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M3 - Article

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

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ER -

Analysis and comparison of three topologies of the ladder multilevel DC/DC converter

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