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http://dx.doi.org/10.12673/jant.2020.24.6.566

The Power Converter Circuit Characteristics for 3 kW Wireless Power Transmission  

Hwang, Lark-Hoon (Department of Electrical Engineering, Semyung University)
Na, Seung-kwon (Department of Information Electric Control Engineering, Korea Polytechnic College Wonju Campus)
Kim, Jin Sun (Department of Electrical Engineering, Semyung University)
Kang, Jin-hee (Department of Electrical Engineering, Semyung University)
Publication Information
Journal of Advanced Navigation Technology / v.24, no.6, 2020 , pp. 566-572 More about this Journal
Abstract
In a wireless power transmitter, the characteristics and effects of wireless power transmission between two induction coils are investigated, and a power converter circuit and a battery charger/discharger circuit using wireless power transmission technology are proposed. The advantage of wireless power transmitters and wireless chargers is that, instead of the existing plug-in-mounted wired charger (OBC; on-board charger), the user can wirelessly charge the battery without connecting the power source when charging power to the battery. There is. In addition, the advantage of wireless charging can bring about an energy efficiency improvement effect by using the secondary side rectifier circuit and the receiving coil, but the large-capacity long-distance wireless charging method has a limitation on the transmission distance, so many studies are currently being conducted. The purpose of the study is to study the transmitter circuit and receiver circuit of a wireless power transmission device using a primary coil, a secondary coil, and a half bridge series resonance converter, which can transmit power of a non-contact type power transmitter. As a result, a new topology was applied to improve the power transmission distance of the wireless charging system, and through an experiment according to each distance, the maximum efficiency (95.8%) was confirmed at an output of 3 kW at an 8 cm transmission distance.
Keywords
Low power wireless; Power converter; Power transmission; Resonant converter; Wireless power transfer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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