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2024-08-27
Study on the Two-Load Transmission Characteristics of a WPT System with Double Transmitting Coils
By
Progress In Electromagnetics Research Letters, Vol. 122, 67-74, 2024
Abstract
It is expensive that each consuming power equipment needs to equip a separate wireless power charger. In addition, obtaining constant output power and high transfer efficiency in large coupling variation ranges is challenging. In this study, the two-load transmission characteristics of a WPT system with double transmitting coils are studied. The circuit model of the two-load WPT system is first developed, and the transmission characteristics are studied. The two-load WPT system achieving constant output power and transmission efficiency is then studied. Finally, the two-load WPT experimental system is designed. This system can achieve self-adjusting impedance compensation. Moreover, the constant output power and transmission efficiency are achieved in each receiver, where their fluctuations are less than 5%. Furthermore, the utilization of the charger is improved by more than 8% due to the two receivers. This topology can provide a solution for practical application problems, such as the two-load wireless charger of the vehicle mobile phone.
Citation
Suqi Liu, Xueying Yan, and Yuping Liu, "Study on the Two-Load Transmission Characteristics of a WPT System with Double Transmitting Coils," Progress In Electromagnetics Research Letters, Vol. 122, 67-74, 2024.
doi:10.2528/PIERL24040101
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