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Broadband Power Converter for Wireless Power Transfer System via Coupled Magnetic Resonances |
Li Yanhong, Liu Guoqiang, Zhang Chao, An Huilin |
1. Department of Engineering Electromagnetics and Applications Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China; 2. University of Chinese Academy of Sciences Beijing 100049 China |
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Abstract Broadband power converter for wireless power transfer system via coupled magnetic resonances was designed in this paper, the performance of power converter which adopts class-E amplifier was analyzed, the efficiency and the load power were improved by optimizing the working states and matching network. Combining the design of matching network of transmitter and receiver resonator, this paper optimizes broadband characteristics of system and analyzes transmission characteristic for various resonant frequencies and resonators. Finally the experimental analysises which are in 0.15~8MHz broadband at 30cm are carried on to verify the theory and simulation, power converter maintains higher system efficiency in wideband working condition.
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Published: 04 January 2017
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Fund:国家自然科学基金资助项目(51207150、51407175) |
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