This article presents a wireless power transfer (WPT) system that incorporates a seamless uplink data telemetry and a simultaneous shared inductor dual-output (SIDO) regulating rectification (RR) under distance variation over a single WPT link. The proposed double charging keying (DCK) uplink data modulation method assisted by a dynamic zoom control breaks the trade-off between power delivery to the load (PDL) and uplink data such that the high data-rate uplink data telemetry no longer limits the amount of PDLs. Furthermore, DCK alleviates the design difficulty in simultaneous uplink data telemetry and RR. The dynamic ZOOM-based digital control algorithm is employed to ensure reliable uplink data telemetry and rapid transient response of SIDO-RR with two ΔΣ\Delta \Sigma -loops under distance variations. This work achieves 1.695-Mb/s uplink data rate while delivering up to 108 mW to two independent loads over 10–42-mm single-link distance. The chip fabricated in standard 65-nm CMOS occupies 0.2-mm2 active area and its performance is validated through in vivo experiments.

中文翻译：

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DiTTO：具有 1.695Mb/s 上行链路遥测和共享电感器双输出调节整流功能的超过 100mW 的距离自适应无线功率传输系统


本文介绍了一种无线功率传输 (WPT) 系统，该系统结合了无缝上行链路数据遥测和同步共享电感器双输出 (SIDO)，可在单个 WPT 链路上的距离变化下调节整流 (RR)。所提出的由动态缩放控制辅助的双充电键控（DCK）上行链路数据调制方法打破了向负载供电（PDL）和上行链路数据之间的权衡，使得高数据速率上行链路数据遥测不再限制数量PDL。此外，DCK减轻了同时上行数据遥测和RR的设计难度。采用基于ZOOM的动态数字控制算法，确保具有两个ΔΣ\Delta \Sigma环的SIDO-RR在距离变化下可靠的上行数据遥测和快速瞬态响应。这项工作实现了 1.695 Mb/s 的上行链路数据速率，同时在 10-42 毫米单链路距离上向两个独立负载提供高达 108 mW 的功率。该芯片采用标准 65 nm CMOS 制造，有效面积为 0.2 mm2，其性能通过体内实验得到验证。