Individually Regulated Dual-Output IPT System Based on Current-Mode Switching Cells

Xiaoqiang Wang; Jianping Xu; Minrui Leng; Hongbo Ma; Tomislav Dragicevic

doi:10.1109/TIE.2020.3047067

Individually Regulated Dual-Output IPT System Based on Current-Mode Switching Cells

Xiaoqiang Wang, Jianping Xu, Minrui Leng, Hongbo Ma, Tomislav Dragicevic

Southwest Jiaotong University

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Abstract

Based on the current-mode switching cell (CMSC), an inductive power transfer (IPT) system with dual-output is proposed in this letter. In the proposed IPT system, two CMSCs are inversely connected in series at the Rx side. Two CMSCs operate in the positive half-cycle and in the negative half-cycle of the Rx coil current, respectively. The dual output voltages can be regulated independently. The circuit structure of the CMSC is quite simple and helps to make the Rx side more compact. The control scheme is based on Rx-side real-time regulation and thereby wireless communication links are not required. Additionally, zero voltage switching (ZVS) is ensured for all switches. In order to verify the theoretical analysis, an experimental prototype with 20V/3.3A and 5V/3A outputs is fabricated, and the maximum efficiency can reach 92.8%.

Original language	English
Journal	IEEE Transactions on Industrial Electronics
Volume	68
Issue number	12
Pages (from-to)	12930 - 12934
ISSN	0278-0046
DOIs	https://doi.org/10.1109/TIE.2020.3047067
Publication status	Published - 2021

Keywords

Inductive power transfer (IPT)
Individually regulated dual-output
Current-mode switching cells

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10.1109/TIE.2020.3047067

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title = "Individually Regulated Dual-Output IPT System Based on Current-Mode Switching Cells",

abstract = "Based on the current-mode switching cell (CMSC), an inductive power transfer (IPT) system with dual-output is proposed in this letter. In the proposed IPT system, two CMSCs are inversely connected in series at the Rx side. Two CMSCs operate in the positive half-cycle and in the negative half-cycle of the Rx coil current, respectively. The dual output voltages can be regulated independently. The circuit structure of the CMSC is quite simple and helps to make the Rx side more compact. The control scheme is based on Rx-side real-time regulation and thereby wireless communication links are not required. Additionally, zero voltage switching (ZVS) is ensured for all switches. In order to verify the theoretical analysis, an experimental prototype with 20V/3.3A and 5V/3A outputs is fabricated, and the maximum efficiency can reach 92.8%.",

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T1 - Individually Regulated Dual-Output IPT System Based on Current-Mode Switching Cells

AU - Wang, Xiaoqiang

AU - Xu, Jianping

AU - Leng, Minrui

AU - Ma, Hongbo

AU - Dragicevic, Tomislav

PY - 2021

Y1 - 2021

N2 - Based on the current-mode switching cell (CMSC), an inductive power transfer (IPT) system with dual-output is proposed in this letter. In the proposed IPT system, two CMSCs are inversely connected in series at the Rx side. Two CMSCs operate in the positive half-cycle and in the negative half-cycle of the Rx coil current, respectively. The dual output voltages can be regulated independently. The circuit structure of the CMSC is quite simple and helps to make the Rx side more compact. The control scheme is based on Rx-side real-time regulation and thereby wireless communication links are not required. Additionally, zero voltage switching (ZVS) is ensured for all switches. In order to verify the theoretical analysis, an experimental prototype with 20V/3.3A and 5V/3A outputs is fabricated, and the maximum efficiency can reach 92.8%.

AB - Based on the current-mode switching cell (CMSC), an inductive power transfer (IPT) system with dual-output is proposed in this letter. In the proposed IPT system, two CMSCs are inversely connected in series at the Rx side. Two CMSCs operate in the positive half-cycle and in the negative half-cycle of the Rx coil current, respectively. The dual output voltages can be regulated independently. The circuit structure of the CMSC is quite simple and helps to make the Rx side more compact. The control scheme is based on Rx-side real-time regulation and thereby wireless communication links are not required. Additionally, zero voltage switching (ZVS) is ensured for all switches. In order to verify the theoretical analysis, an experimental prototype with 20V/3.3A and 5V/3A outputs is fabricated, and the maximum efficiency can reach 92.8%.

KW - Inductive power transfer (IPT)

KW - Individually regulated dual-output

KW - Current-mode switching cells

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DO - 10.1109/TIE.2020.3047067

M3 - Journal article

SN - 0278-0046

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SP - 12930

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JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

IS - 12

ER -

Individually Regulated Dual-Output IPT System Based on Current-Mode Switching Cells

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