Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters

Marc Kanzian; Matteo Agostinelli; Mario Huemer

doi:10.1109/Austrochip.2016.15

Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters

Marc Kanzian
, Matteo Agostinelli
, Mario Huemer

Institute of Signal Processing

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

The importance of energy-efficient DC voltage conversion is ever increasing. This demands for advanced topologies such as time-interleaved multiphase DC-DC converters. An essential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.

Original language	English
Title of host publication	Proceedings of the 24th Austrian Workshop on Microelectronics (Austrochip 2016)
Publisher	IEEE
Pages	7-12
Number of pages	6
ISBN (Electronic)	9781509010400
ISBN (Print)	78-1-5090-1040-0
DOIs	https://doi.org/10.1109/Austrochip.2016.15
Publication status	Published - Oct 2016

Fields of science

202 Electrical Engineering, Electronics, Information Engineering
202015 Electronics
202022 Information technology
202023 Integrated circuits
202025 Power electronics
202028 Microelectronics
202034 Control engineering

JKU Focus areas

Computation in Informatics and Mathematics
Mechatronics and Information Processing

Access to Document

10.1109/Austrochip.2016.15

Cite this

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title = "Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters",

abstract = "The importance of energy-efficient DC voltage conversion is ever increasing. This demands for advanced topologies such as time-interleaved multiphase DC-DC converters. An essential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.",

author = "Marc Kanzian and Matteo Agostinelli and Mario Huemer",

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language = "English",

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AU - Agostinelli, Matteo

AU - Huemer, Mario

PY - 2016/10

Y1 - 2016/10

N2 - The importance of energy-efficient DC voltage conversion is ever increasing. This demands for advanced topologies such as time-interleaved multiphase DC-DC converters. An essential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.

AB - The importance of energy-efficient DC voltage conversion is ever increasing. This demands for advanced topologies such as time-interleaved multiphase DC-DC converters. An essential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.

UR - https://www.scopus.com/pages/publications/85013823276

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DO - 10.1109/Austrochip.2016.15

M3 - Conference proceedings

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EP - 12

BT - Proceedings of the 24th Austrian Workshop on Microelectronics (Austrochip 2016)

PB - IEEE

ER -

Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters

Abstract

Fields of science

JKU Focus areas

Access to Document

Other files and links

Multi-phase DC/DC converters for automotive microcontroller applications

Cite this

Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters

Abstract

Fields of science

JKU Focus areas

Access to Document

Other files and links

Projects

Multi-phase DC/DC converters for automotive microcontroller applications

Cite this