Journal
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Volume 58, Issue 3, Pages 775-780Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCE.2012.6311317
Keywords
Mutual inductance; optimal design; rectangular self-resonator; wireless power transfer; wireless LED TV
Funding
- LG Innotek Components Device Lab.
- LG Electronics Home Entertainment
- National Research Council of Science & Technology (NST), Republic of Korea [12-12-N0101-47] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper proposes an optimal design method in an asymmetric wireless power transfer (WPT) system for a 150 watt LED TV. The WPT system has three self-resonators: a Tx resonator, an Rx resonator, and an intermediate resonator. The Tx and Rx resonators are perpendicular and offset, respectively, to the intermediate resonator in the geometry. For optimal design, the WPT system is analyzed using an equivalent circuit. In particular, a calculation method for mutual inductance in the system is expressed. The calculation results of mutual inductance are used to determine the optimal position of each self-resonator for maximizing the power transfer efficiency. For verification, a WPT system for a 150 watt, 47 inch LED TV is fabricated at 250 kHz. The WPT system exhibits wireless power transfer efficiency of 80%.(1)
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