Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors

Hale Yilmaz; Kemal Ozanoglu; Pier Cavallini; Metin Yazgi

doi:10.1109/SMACD58065.2023.10192121

Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors

Hale Yilmaz, Kemal Ozanoglu, Pier Cavallini, Metin Yazgi

Department of Electronics and Communication Engineering

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

Abstract

This paper presents a novel single-inductor dual-output (SIDO) DC-DC converter topology with two flying capacitors. The two flying capacitors are located in the same current path, targeting an enhanced voltage drop reduction on the inductor, and a decrease in the inductor current slope, aiming for improved power efficiency and relaxed coil current constraints. Using specifications addressing battery-powered display driver applications, simulation results show up to 7.7% efficiency improvement compared to the conventional SIDO converter and up to 4.9% efficiency improvement compared to the SIDO converter with one flying capacitor topology. In addition, a reduction in inductor peak current and ripple can be achieved, along with a lower duty cycle operation, which all lead to relaxed coil selection criteria and relaxed converter stability constraints.

Original language	English
Title of host publication	Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350332650
DOIs	https://doi.org/10.1109/SMACD58065.2023.10192121
Publication status	Published - 2023
Event	19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023 - Funchal, Portugal Duration: 3 Jul 2023 → 5 Jul 2023

Publication series

Name	Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023

Conference

Conference	19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023
Country/Territory	Portugal
City	Funchal
Period	3/07/23 → 5/07/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Funding

ACKNOWLEDGEMENTS This work was supported by Renesas Electronics, Bogazici University, and Istanbul Technical University.

Funders	Funder number
Bogazici University
Renesas Electronics
Istanbul Teknik Üniversitesi

Keywords

AMOLED display
DC-DC converters
flying capacitor
hybrid converter
power management integrated circuits
SIDO converter

Access to Document

10.1109/SMACD58065.2023.10192121

Cite this

Yilmaz, H., Ozanoglu, K., Cavallini, P., & Yazgi, M. (2023). Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors. In Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023 (Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SMACD58065.2023.10192121

Yilmaz, Hale ; Ozanoglu, Kemal ; Cavallini, Pier et al. / Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors. Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023).

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title = "Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors",

abstract = "This paper presents a novel single-inductor dual-output (SIDO) DC-DC converter topology with two flying capacitors. The two flying capacitors are located in the same current path, targeting an enhanced voltage drop reduction on the inductor, and a decrease in the inductor current slope, aiming for improved power efficiency and relaxed coil current constraints. Using specifications addressing battery-powered display driver applications, simulation results show up to 7.7% efficiency improvement compared to the conventional SIDO converter and up to 4.9% efficiency improvement compared to the SIDO converter with one flying capacitor topology. In addition, a reduction in inductor peak current and ripple can be achieved, along with a lower duty cycle operation, which all lead to relaxed coil selection criteria and relaxed converter stability constraints.",

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author = "Hale Yilmaz and Kemal Ozanoglu and Pier Cavallini and Metin Yazgi",

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Yilmaz, H, Ozanoglu, K, Cavallini, P & Yazgi, M 2023, Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors. in Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023. Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023, Institute of Electrical and Electronics Engineers Inc., 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023, Funchal, Portugal, 3/07/23. https://doi.org/10.1109/SMACD58065.2023.10192121

Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors. / Yilmaz, Hale; Ozanoglu, Kemal; Cavallini, Pier et al.
Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023).

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

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AU - Yilmaz, Hale

AU - Ozanoglu, Kemal

AU - Cavallini, Pier

AU - Yazgi, Metin

PY - 2023

Y1 - 2023

N2 - This paper presents a novel single-inductor dual-output (SIDO) DC-DC converter topology with two flying capacitors. The two flying capacitors are located in the same current path, targeting an enhanced voltage drop reduction on the inductor, and a decrease in the inductor current slope, aiming for improved power efficiency and relaxed coil current constraints. Using specifications addressing battery-powered display driver applications, simulation results show up to 7.7% efficiency improvement compared to the conventional SIDO converter and up to 4.9% efficiency improvement compared to the SIDO converter with one flying capacitor topology. In addition, a reduction in inductor peak current and ripple can be achieved, along with a lower duty cycle operation, which all lead to relaxed coil selection criteria and relaxed converter stability constraints.

AB - This paper presents a novel single-inductor dual-output (SIDO) DC-DC converter topology with two flying capacitors. The two flying capacitors are located in the same current path, targeting an enhanced voltage drop reduction on the inductor, and a decrease in the inductor current slope, aiming for improved power efficiency and relaxed coil current constraints. Using specifications addressing battery-powered display driver applications, simulation results show up to 7.7% efficiency improvement compared to the conventional SIDO converter and up to 4.9% efficiency improvement compared to the SIDO converter with one flying capacitor topology. In addition, a reduction in inductor peak current and ripple can be achieved, along with a lower duty cycle operation, which all lead to relaxed coil selection criteria and relaxed converter stability constraints.

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M3 - Conference contribution

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ER -

Yilmaz H, Ozanoglu K, Cavallini P, Yazgi M. Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors. In Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023. Institute of Electrical and Electronics Engineers Inc. 2023. (Proceedings - 2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods, and Applications to Circuit Design, SMACD 2023). doi: 10.1109/SMACD58065.2023.10192121

Single-Inductor Dual-Output DC-DC Converter with Multiple Flying Capacitors

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

Access to Document

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