A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications

Yining Liu; Prasad Jayathurathnage; Sergei A. Tretyakov; Jorma Kyyrä

doi:10.1109/ECCE53617.2023.10362393

A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications

Yining Liu^*, Prasad Jayathurathnage, Sergei A. Tretyakov, Jorma Kyyrä

^*Corresponding author for this work

Danfoss AS

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

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Abstract

We propose a novel converter for simultaneous dual-frequency wireless power transfer (WPT) devices. The proposed converter realizes independent WPT channels at two frequencies: the main frequency f_s and the second harmonic 2f_s. With the coupled-T-network, a new class-Φ based push-pull inverter is introduced to provide load-independent currents for two transmitter coils. The power channels at two frequencies are decoupled and independent from each other, providing high flexibility for individual or simultaneous WPT at both frequency bands. The experimental WPT system has verified the characteristics of the proposed converter, realizing 64 W: 16 W power transfer for 6.78 MHz and 13.56 MHz receivers, respectively, with 80 % system efficiency.

Original language	English
Title of host publication	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Publisher	IEEE
Pages	1613-1619
Number of pages	7
ISBN (Electronic)	979-8-3503-1644-5
ISBN (Print)	979-8-3503-1645-2
DOIs	https://doi.org/10.1109/ECCE53617.2023.10362393
Publication status	Published - 2023
MoE publication type	A4 Conference publication
Event	IEEE Energy Conversion Congress and Exposition - Nashville, United States Duration: 29 Oct 2023 → 2 Nov 2023

Publication series

Name	IEEE Energy Conversion Congress and Exposition
ISSN (Print)	2329-3721
ISSN (Electronic)	2329-3748

Conference

Conference	IEEE Energy Conversion Congress and Exposition
Abbreviated title	ECCE
Country/Territory	United States
City	Nashville
Period	29/10/2023 → 02/11/2023

Keywords

dual frequency
independent power channel
multi-MHz
resonant converter
wireless power transfer

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ECCE53617.2023.10362393

A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer ApplicationsAccepted author manuscript, 3.51 MB

Cite this

@inproceedings{91768c4342d34227ae33196acc1fe724,

title = "A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications",

abstract = "We propose a novel converter for simultaneous dual-frequency wireless power transfer (WPT) devices. The proposed converter realizes independent WPT channels at two frequencies: the main frequency fs and the second harmonic 2fs. With the coupled-T-network, a new class-Φ based push-pull inverter is introduced to provide load-independent currents for two transmitter coils. The power channels at two frequencies are decoupled and independent from each other, providing high flexibility for individual or simultaneous WPT at both frequency bands. The experimental WPT system has verified the characteristics of the proposed converter, realizing 64 W: 16 W power transfer for 6.78 MHz and 13.56 MHz receivers, respectively, with 80 % system efficiency.",

keywords = "dual frequency, independent power channel, multi-MHz, resonant converter, wireless power transfer",

author = "Yining Liu and Prasad Jayathurathnage and Tretyakov, {Sergei A.} and Jorma Kyyr{\"a}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; IEEE Energy Conversion Congress and Exposition, ECCE ; Conference date: 29-10-2023 Through 02-11-2023",

year = "2023",

doi = "10.1109/ECCE53617.2023.10362393",

language = "English",

isbn = "979-8-3503-1645-2",

series = "IEEE Energy Conversion Congress and Exposition",

publisher = "IEEE",

pages = "1613--1619",

booktitle = "2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023",

address = "United States",

}

Liu, Y , Jayathurathnage, P , Tretyakov, SA & Kyyrä, J 2023, A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications. in 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. IEEE Energy Conversion Congress and Exposition, IEEE, pp. 1613-1619, IEEE Energy Conversion Congress and Exposition, Nashville, Tennessee, United States, 29/10/2023. https://doi.org/10.1109/ECCE53617.2023.10362393

A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications. / Liu, Yining ; Jayathurathnage, Prasad ; Tretyakov, Sergei A. et al.
2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. IEEE, 2023. p. 1613-1619 (IEEE Energy Conversion Congress and Exposition).

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

TY - GEN

T1 - A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications

AU - Liu, Yining

AU - Jayathurathnage, Prasad

AU - Tretyakov, Sergei A.

AU - Kyyrä, Jorma

PY - 2023

Y1 - 2023

N2 - We propose a novel converter for simultaneous dual-frequency wireless power transfer (WPT) devices. The proposed converter realizes independent WPT channels at two frequencies: the main frequency fs and the second harmonic 2fs. With the coupled-T-network, a new class-Φ based push-pull inverter is introduced to provide load-independent currents for two transmitter coils. The power channels at two frequencies are decoupled and independent from each other, providing high flexibility for individual or simultaneous WPT at both frequency bands. The experimental WPT system has verified the characteristics of the proposed converter, realizing 64 W: 16 W power transfer for 6.78 MHz and 13.56 MHz receivers, respectively, with 80 % system efficiency.

AB - We propose a novel converter for simultaneous dual-frequency wireless power transfer (WPT) devices. The proposed converter realizes independent WPT channels at two frequencies: the main frequency fs and the second harmonic 2fs. With the coupled-T-network, a new class-Φ based push-pull inverter is introduced to provide load-independent currents for two transmitter coils. The power channels at two frequencies are decoupled and independent from each other, providing high flexibility for individual or simultaneous WPT at both frequency bands. The experimental WPT system has verified the characteristics of the proposed converter, realizing 64 W: 16 W power transfer for 6.78 MHz and 13.56 MHz receivers, respectively, with 80 % system efficiency.

KW - dual frequency

KW - independent power channel

KW - multi-MHz

KW - resonant converter

KW - wireless power transfer

UR - http://www.scopus.com/inward/record.url?scp=85182940741&partnerID=8YFLogxK

U2 - 10.1109/ECCE53617.2023.10362393

DO - 10.1109/ECCE53617.2023.10362393

M3 - Conference article in proceedings

AN - SCOPUS:85182940741

SN - 979-8-3503-1645-2

T3 - IEEE Energy Conversion Congress and Exposition

SP - 1613

EP - 1619

BT - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

PB - IEEE

T2 - IEEE Energy Conversion Congress and Exposition

Y2 - 29 October 2023 through 2 November 2023

ER -

A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications

Abstract

Publication series

Conference

Keywords

UN SDGs

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Aalto Electronics-ICT

Cite this

A new Push-pull Class-Φ Converter for Multi-MHz Dual-frequency Wireless Power Transfer Applications

Abstract

Publication series

Conference

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Equipment

Aalto Electronics-ICT

Cite this