Efficient circuit modelling of wireless power transfer to multiple devices
- Author(s): Xiaochang Liu 1 ; Gaofeng Wang 2 ; Wen Ding 2
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View affiliations
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Affiliations:
1:
School of Electronics Information, Wuhan University, Wuhan, Hubei 430072, People's Republic of China;
2: Key Lab of RF Circuits and Systems of Ministry of Education, Microelectronics CAD Center, School of Electronics and Information, Hangzhou Dianzi University, Zhejiang 310018, People's Republic of China
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Affiliations:
1:
School of Electronics Information, Wuhan University, Wuhan, Hubei 430072, People's Republic of China;
- Source:
Volume 7, Issue 12,
December 2014,
p.
3017 – 3022
DOI: 10.1049/iet-pel.2013.0969 , Print ISSN 1755-4535, Online ISSN 1755-4543
Circuit analysis of the wireless power transfer (WPT) system with one source and multiple receiving devices is presented. An equivalent circuit model for the WPT system with one source and multiple receiving devices is proposed and formulae for calculating the maximum power efficiency and the optimal loads of the receiving devices are derived analytically. The tuning scheme for optimising the WPT system is deduced and expressed in terms of empirical equations for load networks. The circuit analysis of the WPT system is validated by the experimental results and circuit simulations. The proposed circuit modelling scheme provides an efficient way for designing and optimising the multiple-device WPT systems.
Inspec keywords: battery chargers; equivalent circuits; circuit simulation
Other keywords: WPT system; equivalent circuit model; one source device; circuit modelling; wireless power transfer system circuit analysis; multiple receiving device
Subjects: Power electronics, supply and supervisory circuits; General circuit analysis and synthesis methods
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