A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency

Gyeong Gu Kang; Minjie Chen; Hyun Sik Kim

doi:10.1109/CICC63670.2025.10982703

A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency

Gyeong Gu Kang, Minjie Chen, Hyun Sik Kim

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

Abstract

The use of a boost DC-DC converter capable of accommodating a high voltage conversion ratio (VCR) is essential for powering LED-strings from mobile device voltages (VIN = 5V) [1]. However, achieving such high VCRs with traditional boost converters necessitates an excessively increased duty cycle D, resulting in significant output ripples. Often, the constraint on the maximum D limits the attainable VCR. Moreover, targeting a high output voltage (up to Vo = 45V) imposes considerable voltage stress on the switches. Many flying capacitor (CF) - based hybrid boost converters [2]-[11] present a viable solution. Nonetheless, identifying the optimal hybrid topology with minimal resources remains a complex task.

Original language	English (US)
Title of host publication	2025 IEEE Custom Integrated Circuits Conference, CICC 2025 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798331517458
DOIs	https://doi.org/10.1109/CICC63670.2025.10982703
State	Published - 2025
Event	45th Annual IEEE Custom Integrated Circuits Conference, CICC 2025 - Boston, United States Duration: Apr 13 2025 → Apr 17 2025

Publication series

Name	Proceedings of the Custom Integrated Circuits Conference
ISSN (Print)	0886-5930

Conference

Conference	45th Annual IEEE Custom Integrated Circuits Conference, CICC 2025
Country/Territory	United States
City	Boston
Period	4/13/25 → 4/17/25

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/CICC63670.2025.10982703

Cite this

Kang, G. G., Chen, M., & Kim, H. S. (2025). A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency. In 2025 IEEE Custom Integrated Circuits Conference, CICC 2025 - Proceedings (Proceedings of the Custom Integrated Circuits Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CICC63670.2025.10982703

Kang, Gyeong Gu ; Chen, Minjie ; Kim, Hyun Sik. / A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency. 2025 IEEE Custom Integrated Circuits Conference, CICC 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2025. (Proceedings of the Custom Integrated Circuits Conference).

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title = "A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency",

abstract = "The use of a boost DC-DC converter capable of accommodating a high voltage conversion ratio (VCR) is essential for powering LED-strings from mobile device voltages (VIN = 5V) [1]. However, achieving such high VCRs with traditional boost converters necessitates an excessively increased duty cycle D, resulting in significant output ripples. Often, the constraint on the maximum D limits the attainable VCR. Moreover, targeting a high output voltage (up to Vo = 45V) imposes considerable voltage stress on the switches. Many flying capacitor (CF) - based hybrid boost converters [2]-[11] present a viable solution. Nonetheless, identifying the optimal hybrid topology with minimal resources remains a complex task.",

author = "Kang, {Gyeong Gu} and Minjie Chen and Kim, {Hyun Sik}",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 45th Annual IEEE Custom Integrated Circuits Conference, CICC 2025 ; Conference date: 13-04-2025 Through 17-04-2025",

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doi = "10.1109/CICC63670.2025.10982703",

language = "English (US)",

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Kang, GG, Chen, M & Kim, HS 2025, A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency. in 2025 IEEE Custom Integrated Circuits Conference, CICC 2025 - Proceedings. Proceedings of the Custom Integrated Circuits Conference, Institute of Electrical and Electronics Engineers Inc., 45th Annual IEEE Custom Integrated Circuits Conference, CICC 2025, Boston, United States, 4/13/25. https://doi.org/10.1109/CICC63670.2025.10982703

A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency. / Kang, Gyeong Gu; Chen, Minjie; Kim, Hyun Sik.
2025 IEEE Custom Integrated Circuits Conference, CICC 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2025. (Proceedings of the Custom Integrated Circuits Conference).

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

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Kang GG, Chen M, Kim HS. A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency. In 2025 IEEE Custom Integrated Circuits Conference, CICC 2025 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2025. (Proceedings of the Custom Integrated Circuits Conference). doi: 10.1109/CICC63670.2025.10982703

A 5V-Input, 12.5-to-45V-Output Reconfigurable Hybrid Boost Converter with an SC-Based Parallel Auxiliary Cell Achieving 96.8% Peak Efficiency

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All Science Journal Classification (ASJC) codes

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