Optimization of resonant inductive links for wireless power transfer

Hyeonseok Hwang; Byeonghak Jo; Junil Moon; Chankeun Kwon; Baekseok Ko; Soo-Won Kim

doi:10.1109/ICCE.2016.7430601

Optimization of resonant inductive links for wireless power transfer

Hyeonseok Hwang, Byeonghak Jo, Junil Moon, Chankeun Kwon, Baekseok Ko, Soo-Won Kim

School of Electrical Engineering

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

2 Citations (Scopus)

Abstract

A shunt-series mixed resonant coupled structure for the wireless power transfer (WPT) applications is proposed. If the coils are designed to have proper inductance values, the power transfer efficiency depending on distance has proportional relation only to the shunt capacitors. It enables that the proposed structure facilitates tracking the maximum WPT efficiency according to distance. In the experiment, two pairs of resonant square coils on PCB with different turn ratio (5/10 turn) are compared for 6.78 MHz operation. Both coils have almost same maximum WPT efficiency by optimizing the series and shunt capacitors. But the 10-turn coil only demonstrates aforementioned relation. The proposed structure with 10-turn coil shows that the efficiency of 77.7 % is achieved at a distance of 30 mm.

Original language	English
Title of host publication	2016 IEEE International Conference on Consumer Electronics, ICCE 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	249-250
Number of pages	2
ISBN (Print)	9781467383646
DOIs	https://doi.org/10.1109/ICCE.2016.7430601
Publication status	Published - 2016 Mar 10
Event	IEEE International Conference on Consumer Electronics, ICCE 2016 - Las Vegas, United States Duration: 2016 Jan 7 → 2016 Jan 11

Other

Other	IEEE International Conference on Consumer Electronics, ICCE 2016
Country/Territory	United States
City	Las Vegas
Period	16/1/7 → 16/1/11

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

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10.1109/ICCE.2016.7430601

Cite this

Hwang, H, Jo, B, Moon, J, Kwon, C, Ko, B & Kim, S-W 2016, Optimization of resonant inductive links for wireless power transfer. in 2016 IEEE International Conference on Consumer Electronics, ICCE 2016., 7430601, Institute of Electrical and Electronics Engineers Inc., pp. 249-250, IEEE International Conference on Consumer Electronics, ICCE 2016, Las Vegas, United States, 16/1/7. https://doi.org/10.1109/ICCE.2016.7430601

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abstract = "A shunt-series mixed resonant coupled structure for the wireless power transfer (WPT) applications is proposed. If the coils are designed to have proper inductance values, the power transfer efficiency depending on distance has proportional relation only to the shunt capacitors. It enables that the proposed structure facilitates tracking the maximum WPT efficiency according to distance. In the experiment, two pairs of resonant square coils on PCB with different turn ratio (5/10 turn) are compared for 6.78 MHz operation. Both coils have almost same maximum WPT efficiency by optimizing the series and shunt capacitors. But the 10-turn coil only demonstrates aforementioned relation. The proposed structure with 10-turn coil shows that the efficiency of 77.7 % is achieved at a distance of 30 mm.",

author = "Hyeonseok Hwang and Byeonghak Jo and Junil Moon and Chankeun Kwon and Baekseok Ko and Soo-Won Kim",

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booktitle = "2016 IEEE International Conference on Consumer Electronics, ICCE 2016",

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AU - Hwang, Hyeonseok

AU - Jo, Byeonghak

AU - Moon, Junil

AU - Kwon, Chankeun

AU - Ko, Baekseok

AU - Kim, Soo-Won

PY - 2016/3/10

Y1 - 2016/3/10

N2 - A shunt-series mixed resonant coupled structure for the wireless power transfer (WPT) applications is proposed. If the coils are designed to have proper inductance values, the power transfer efficiency depending on distance has proportional relation only to the shunt capacitors. It enables that the proposed structure facilitates tracking the maximum WPT efficiency according to distance. In the experiment, two pairs of resonant square coils on PCB with different turn ratio (5/10 turn) are compared for 6.78 MHz operation. Both coils have almost same maximum WPT efficiency by optimizing the series and shunt capacitors. But the 10-turn coil only demonstrates aforementioned relation. The proposed structure with 10-turn coil shows that the efficiency of 77.7 % is achieved at a distance of 30 mm.

AB - A shunt-series mixed resonant coupled structure for the wireless power transfer (WPT) applications is proposed. If the coils are designed to have proper inductance values, the power transfer efficiency depending on distance has proportional relation only to the shunt capacitors. It enables that the proposed structure facilitates tracking the maximum WPT efficiency according to distance. In the experiment, two pairs of resonant square coils on PCB with different turn ratio (5/10 turn) are compared for 6.78 MHz operation. Both coils have almost same maximum WPT efficiency by optimizing the series and shunt capacitors. But the 10-turn coil only demonstrates aforementioned relation. The proposed structure with 10-turn coil shows that the efficiency of 77.7 % is achieved at a distance of 30 mm.

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Optimization of resonant inductive links for wireless power transfer

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