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本文提出一种输出域独立的单发射器双接收器无线功率传输系统，通过detuned-tank和时分复用控制实现自适应功率分配，解决不同接收器阻抗和耦合系数引起的功率冲突。系统在宽耦合系数范围内实现高效稳定的双路输出。
Abstract This paper presents an output-domain-independent single-transmitter-dual-receiver wireless power transfer system. The proposed detuned-tank and time-multiplexing control enable adaptive power distribution, preventing power conflicts caused by different receiver impedance (ZRX) and coupling coefficient (k). The system achieves two output domains over k ranging from 0.14 to 0.28, with excellent load regulation of 0.07/0.26mV/mA, a peak efficiency of 82.2% and a maximum output power of 1099mW. With the growing number of portable, wearable, and implantable devices, multi-output wireless power transfer (WPT) systems have become increasingly important [1-6]. Previous solutions typically realize multiple outputs within a single receiver (RX) and cannot simultaneously deliver multiple outputs across different RX devices (i.e., cannot achieve independent output domains), which limits their application scenarios. To power multiple
Yutang Chen, Yifan Lin, Dihu Chen, Jianping Guo
Sun Yat-Sen University, Guangzhou, China