Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2015.07a
- /
- Pages.1006-1007
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- 2015
A study on the Secondary Side Control DC-DC Converter in Wireless Power Transfer System
무선전력전송 시스템에서 2차측 DC-DC 컨버터에 관한 연구
- Seo, Sang-Hwa (Dongguk University) ;
-
Kim, Yong
(Dongguk University)
;
- Bae, Jin-Yong (KIPO) ;
- Yun, Hong-Min (LSIS) ;
- Lee, Sung-Ho (NeoPowerTech) ;
- Cho, Young-il (Nara Engineering Consultant) ;
- Park, Seung-Ha (Daelim University)
- Published : 2015.07.15
Abstract
Recent improvement in semiconductor technology make efficient switching possible at higher frequencies, which benefits the application of wireless inductive energy transfer. However, a higher frequency does not alter the magnetic coupling between energy transmitter and receiver. Due to the still weak magnetic coupling between transmitting and receiving sides that are separated by a substantial air gap, energy circulates in the primary transmitting side without being transferred to the secondary receiving side. This paper proposes an analysis on the system efficiency to determine the optimal impedance requirement for coils, rectifier and DC-DC Converter. A novel Boost DC-DC Converter is designed to provide the optimal impedance matching in WPT(Wireless Power Transfer) system for various loads.
Keywords