Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer

Chuyue Ji; Albert Ting Leung Lee; Jiayang Wu; Siew-Chong Tan; Shu Yuen (Ron) Hui

doi:10.1109/WPTCE62521.2025.11062161

Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

2 Citations (Scopus)

Abstract

In this paper, a new isolated bidirectional single-input multiple-output (SIMO) converter, which enables both directions of power conversion between one DC port and multiple AC ports, is proposed. In the DC-AC power conversion, a single DC voltage source is converted into multiple independent AC voltage outputs simultaneously. In the AC-DC power conversion, one or more AC voltage inputs can be converted into a common DC voltage output. Compared with prior arts, the proposed converter achieves 1) electrical isolation between the input and output power stages, 2) bidirectional power conversion capability, and 3) a simplified structure. This topology works for safe and stable peer-to-peer wireless power transfer (P2P-WPT) applications between portable devices. An isolated bidirectional single-input three-output (SITO) converter is verified by simulation.
© 2025 IEEE.

Original language	English
Title of host publication	2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings
Publisher	IEEE
Number of pages	5
ISBN (Electronic)	979-8-3315-1743-4
ISBN (Print)	979-8-3315-1744-1
DOIs	https://doi.org/10.1109/WPTCE62521.2025.11062161
Publication status	Published - 2025
Event	2025 IEEE Wireless Power Technology Conference and Expo (WPTCE 2025) - University of Rome “La Sapienza”, Rome, Italy Duration: 3 Jun 2025 → 6 Jun 2025 https://ieee-wptce.org/

Publication series

Name	IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings

Conference

Conference	2025 IEEE Wireless Power Technology Conference and Expo (WPTCE 2025)
Abbreviated title	WPTCE2025
Place	Italy
City	Rome
Period	3/06/25 → 6/06/25
Internet address	https://ieee-wptce.org/

Funding

This work is supported by the Hong Kong Research Grant Council under the General Research Fund (Project no. 17204724).

Research Keywords

Isolated single-input multiple-output (SIMO) converter
bidirectional power transfer
multi-coil wireless power transfer (MC-WPT)
peer-to-peer wireless power transfer (P2P-WPT)

RGC Funding Information

RGC-funded

Access Output

10.1109/WPTCE62521.2025.11062161

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Cite this

Ji, C., Lee, A. T. L., Wu, J., Tan, S.-C., & Hui, S. Y. (2025). Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer. In 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings Article PS1C.7 (IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings). IEEE. https://doi.org/10.1109/WPTCE62521.2025.11062161

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title = "Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer",

abstract = "In this paper, a new isolated bidirectional single-input multiple-output (SIMO) converter, which enables both directions of power conversion between one DC port and multiple AC ports, is proposed. In the DC-AC power conversion, a single DC voltage source is converted into multiple independent AC voltage outputs simultaneously. In the AC-DC power conversion, one or more AC voltage inputs can be converted into a common DC voltage output. Compared with prior arts, the proposed converter achieves 1) electrical isolation between the input and output power stages, 2) bidirectional power conversion capability, and 3) a simplified structure. This topology works for safe and stable peer-to-peer wireless power transfer (P2P-WPT) applications between portable devices. An isolated bidirectional single-input three-output (SITO) converter is verified by simulation. {\textcopyright} 2025 IEEE.",

keywords = "Isolated single-input multiple-output (SIMO) converter, bidirectional power transfer, multi-coil wireless power transfer (MC-WPT), peer-to-peer wireless power transfer (P2P-WPT)",

author = "Chuyue Ji and Lee, \{Albert Ting Leung\} and Jiayang Wu and Siew-Chong Tan and Hui, \{Shu Yuen (Ron)\}",

year = "2025",

doi = "10.1109/WPTCE62521.2025.11062161",

language = "English",

isbn = "979-8-3315-1744-1",

series = "IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings",

publisher = "IEEE",

booktitle = "2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings",

address = "United States",

note = "2025 IEEE Wireless Power Technology Conference and Expo (WPTCE 2025), WPTCE2025 ; Conference date: 03-06-2025 Through 06-06-2025",

url = "https://ieee-wptce.org/",

}

Ji, C, Lee, ATL, Wu, J , Tan, S-C & Hui, SY 2025, Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer. in 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings., PS1C.7, IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings, IEEE, 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE 2025), Rome, Italy, 3/06/25. https://doi.org/10.1109/WPTCE62521.2025.11062161

Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer. / Ji, Chuyue; Lee, Albert Ting Leung; Wu, Jiayang et al.
2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings. IEEE, 2025. PS1C.7 (IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer

AU - Ji, Chuyue

AU - Lee, Albert Ting Leung

AU - Wu, Jiayang

AU - Tan, Siew-Chong

AU - Hui, Shu Yuen (Ron)

PY - 2025

Y1 - 2025

N2 - In this paper, a new isolated bidirectional single-input multiple-output (SIMO) converter, which enables both directions of power conversion between one DC port and multiple AC ports, is proposed. In the DC-AC power conversion, a single DC voltage source is converted into multiple independent AC voltage outputs simultaneously. In the AC-DC power conversion, one or more AC voltage inputs can be converted into a common DC voltage output. Compared with prior arts, the proposed converter achieves 1) electrical isolation between the input and output power stages, 2) bidirectional power conversion capability, and 3) a simplified structure. This topology works for safe and stable peer-to-peer wireless power transfer (P2P-WPT) applications between portable devices. An isolated bidirectional single-input three-output (SITO) converter is verified by simulation. © 2025 IEEE.

AB - In this paper, a new isolated bidirectional single-input multiple-output (SIMO) converter, which enables both directions of power conversion between one DC port and multiple AC ports, is proposed. In the DC-AC power conversion, a single DC voltage source is converted into multiple independent AC voltage outputs simultaneously. In the AC-DC power conversion, one or more AC voltage inputs can be converted into a common DC voltage output. Compared with prior arts, the proposed converter achieves 1) electrical isolation between the input and output power stages, 2) bidirectional power conversion capability, and 3) a simplified structure. This topology works for safe and stable peer-to-peer wireless power transfer (P2P-WPT) applications between portable devices. An isolated bidirectional single-input three-output (SITO) converter is verified by simulation. © 2025 IEEE.

KW - Isolated single-input multiple-output (SIMO) converter

KW - bidirectional power transfer

KW - multi-coil wireless power transfer (MC-WPT)

KW - peer-to-peer wireless power transfer (P2P-WPT)

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001545112700053

UR - https://www.scopus.com/pages/publications/105011494473

UR - https://www.scopus.com/pages/publications/105011494473#tab=impact

U2 - 10.1109/WPTCE62521.2025.11062161

DO - 10.1109/WPTCE62521.2025.11062161

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 979-8-3315-1744-1

T3 - IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings

BT - 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings

PB - IEEE

T2 - 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE 2025)

Y2 - 3 June 2025 through 6 June 2025

ER -

Ji C, Lee ATL, Wu J , Tan SC , Hui SY. Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer. In 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE) - Proceedings. IEEE. 2025. PS1C.7. (IEEE Wireless Power Technology Conference and Expo, WPTCE - Proceedings). Epub 2025 Jul 7. doi: 10.1109/WPTCE62521.2025.11062161

Isolated Bidirectional Single-Input Multiple-Output Converter for Peer-to-Peer Wireless Power Transfer

Abstract

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Research Keywords

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