@inproceedings{6a4ab4a520d24c61838056c46027b510,
title = "Design of high efficiency resonant coil and receiver IC for wireless power transfer in mobile device",
abstract = "This paper describes the design of resonant coil and receiver IC for wireless power transfer (WPT) based on magnetic resonance method in mobile device. The coil is modeled and optimized based on magnetic simulation tool to obtain maximum power transfer efficiency. The fabricated receiver IC consists of rectifier, DC-DC converter and charging control circuit is designed to reduce the power loss in the power conversion stages. Based on the design procedure magnetically coupled resonator are fabricated at 6.78MHz resonance frequency. The power transfer efficiency of the WPT systems are analyzed based on simulation and measurement results for variation of distance between transmitter and receiver. At a distance of 30mm, the measurement result shows that the power transfer efficiency is 51%. The resonant coils and the fabricated chip determined the maximum efficiency of 72.1% and 70.2% respectively in 30mm distance.",
keywords = "DC-DC converter, magnetic resonance, power management, rectifier, wireless power transfer",
author = "Kim, {Se Yong} and Kim, {Tae Yang} and Choi, {Jun Rim}",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 5th International Conference on Modern Circuits and Systems Technologies, MOCAST 2016 ; Conference date: 12-05-2016 Through 14-05-2016",
year = "2016",
month = jun,
day = "20",
doi = "10.1109/MOCAST.2016.7495128",
language = "English",
series = "2016 5th International Conference on Modern Circuits and Systems Technologies, MOCAST 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2016 5th International Conference on Modern Circuits and Systems Technologies, MOCAST 2016",
address = "United States",
}