Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming

Andrija Stupar; Michael Halamicek; Tom Moiannou; Aleksandar Prodić; Josh A. Taylor

doi:10.1109/COMPEL.2018.8459935

Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming

Andrija Stupar, Michael Halamicek, Tom Moiannou, Aleksandar Prodić, Josh A. Taylor

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

9 Scopus citations

Abstract

Recently, it has been shown that geometric programming, a class of convex optimization problems, can be used to optimize converters quickly and accurately. Some however, such at the seven-switch flying capacitor step-down converter (7SFC), designed to operate in three modes as three distinct topologies in order to maximize efficiency for the given operating point, cannot be modeled as geometric programs (GPs) on the converter level. This paper presents a hybrid optimization procedure, generalizable to other topologies, that uses a GP coupled to a fast circuit simulation to quickly optimize and design a 7SFC power stage IC for multiple operating points.

Original language	English (US)
Title of host publication	2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781538655412
DOIs	https://doi.org/10.1109/COMPEL.2018.8459935
State	Published - Sep 10 2018
Externally published	Yes
Event	19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italy Duration: Jun 25 2018 → Jun 28 2018

Publication series

Name	2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018

Conference

Conference	19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018
Country/Territory	Italy
City	Padova
Period	6/25/18 → 6/28/18

All Science Journal Classification (ASJC) codes

Modeling and Simulation
Energy Engineering and Power Technology
Electrical and Electronic Engineering
Control and Optimization

Access to Document

10.1109/COMPEL.2018.8459935

Cite this

Stupar, A., Halamicek, M., Moiannou, T., Prodić, A., & Taylor, J. A. (2018). Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming. In 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018 Article 8459935 (2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEL.2018.8459935

Stupar, Andrija ; Halamicek, Michael ; Moiannou, Tom et al. / Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming. 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018).

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title = "Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming",

abstract = "Recently, it has been shown that geometric programming, a class of convex optimization problems, can be used to optimize converters quickly and accurately. Some however, such at the seven-switch flying capacitor step-down converter (7SFC), designed to operate in three modes as three distinct topologies in order to maximize efficiency for the given operating point, cannot be modeled as geometric programs (GPs) on the converter level. This paper presents a hybrid optimization procedure, generalizable to other topologies, that uses a GP coupled to a fast circuit simulation to quickly optimize and design a 7SFC power stage IC for multiple operating points.",

author = "Andrija Stupar and Michael Halamicek and Tom Moiannou and Aleksandar Prodi{\'c} and Taylor, {Josh A.}",

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series = "2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018",

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Stupar, A, Halamicek, M, Moiannou, T, Prodić, A & Taylor, JA 2018, Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming. in 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018., 8459935, 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018, Institute of Electrical and Electronics Engineers Inc., 19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018, Padova, Italy, 6/25/18. https://doi.org/10.1109/COMPEL.2018.8459935

Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming. / Stupar, Andrija; Halamicek, Michael; Moiannou, Tom et al.
2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8459935 (2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Taylor, Josh A.

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N2 - Recently, it has been shown that geometric programming, a class of convex optimization problems, can be used to optimize converters quickly and accurately. Some however, such at the seven-switch flying capacitor step-down converter (7SFC), designed to operate in three modes as three distinct topologies in order to maximize efficiency for the given operating point, cannot be modeled as geometric programs (GPs) on the converter level. This paper presents a hybrid optimization procedure, generalizable to other topologies, that uses a GP coupled to a fast circuit simulation to quickly optimize and design a 7SFC power stage IC for multiple operating points.

AB - Recently, it has been shown that geometric programming, a class of convex optimization problems, can be used to optimize converters quickly and accurately. Some however, such at the seven-switch flying capacitor step-down converter (7SFC), designed to operate in three modes as three distinct topologies in order to maximize efficiency for the given operating point, cannot be modeled as geometric programs (GPs) on the converter level. This paper presents a hybrid optimization procedure, generalizable to other topologies, that uses a GP coupled to a fast circuit simulation to quickly optimize and design a 7SFC power stage IC for multiple operating points.

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Stupar A, Halamicek M, Moiannou T, Prodić A, Taylor JA. Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming. In 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018. Institute of Electrical and Electronics Engineers Inc. 2018. 8459935. (2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018). doi: 10.1109/COMPEL.2018.8459935

Efficiency Optimization of a 7-Switch Flying Capacitor Buck Converter Power Stage IC Using Simulation and Geometric Programming

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